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| <div class="title">harris_corners.cl File Reference</div> </div> |
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| <div class="textblock"><code>#include "<a class="el" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml">helpers.h</a>"</code><br /> |
| </div> |
| <p><a href="harris__corners_8cl_source.xhtml">Go to the source code of this file.</a></p> |
| <table class="memberdecls"> |
| <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a> |
| Functions</h2></td></tr> |
| <tr class="memitem:a2cf3b8c23c9f8f383d81d13bfff96e3d"><td class="memItemLeft" align="right" valign="top">__kernel void </td><td class="memItemRight" valign="bottom"><a class="el" href="harris__corners_8cl.xhtml#a2cf3b8c23c9f8f383d81d13bfff96e3d">harris_score_3x3</a> (__global uchar *src_gx_ptr, uint src_gx_stride_x, uint src_gx_step_x, uint src_gx_stride_y, uint src_gx_step_y, uint src_gx_offset_first_element_in_bytes, __global uchar *src_gy_ptr, uint src_gy_stride_x, uint src_gy_step_x, uint src_gy_stride_y, uint src_gy_step_y, uint src_gy_offset_first_element_in_bytes, __global uchar *vc_ptr, uint vc_stride_x, uint vc_step_x, uint vc_stride_y, uint vc_step_y, uint vc_offset_first_element_in_bytes, float sensitivity, float strength_thresh, float pow4_normalization_factor)</td></tr> |
| <tr class="memdesc:a2cf3b8c23c9f8f383d81d13bfff96e3d"><td class="mdescLeft"> </td><td class="mdescRight">Function running harris score on 3x3 block size. <a href="#a2cf3b8c23c9f8f383d81d13bfff96e3d">More...</a><br /></td></tr> |
| <tr class="separator:a2cf3b8c23c9f8f383d81d13bfff96e3d"><td class="memSeparator" colspan="2"> </td></tr> |
| <tr class="memitem:a71d10f5d9e840b6d270620a2cd856926"><td class="memItemLeft" align="right" valign="top">float16 </td><td class="memItemRight" valign="bottom"><a class="el" href="harris__corners_8cl.xhtml#a71d10f5d9e840b6d270620a2cd856926">harris_score_1x5</a> (<a class="el" href="struct_image.xhtml">Image</a> *src_gx, <a class="el" href="struct_image.xhtml">Image</a> *src_gy, int row)</td></tr> |
| <tr class="memdesc:a71d10f5d9e840b6d270620a2cd856926"><td class="mdescLeft"> </td><td class="mdescRight">Function for calculating harris score 1x5. <a href="#a71d10f5d9e840b6d270620a2cd856926">More...</a><br /></td></tr> |
| <tr class="separator:a71d10f5d9e840b6d270620a2cd856926"><td class="memSeparator" colspan="2"> </td></tr> |
| <tr class="memitem:a0f0af2add0a40f2f4b8a14f409186a02"><td class="memItemLeft" align="right" valign="top">__kernel void </td><td class="memItemRight" valign="bottom"><a class="el" href="harris__corners_8cl.xhtml#a0f0af2add0a40f2f4b8a14f409186a02">harris_score_5x5</a> (__global uchar *src_gx_ptr, uint src_gx_stride_x, uint src_gx_step_x, uint src_gx_stride_y, uint src_gx_step_y, uint src_gx_offset_first_element_in_bytes, __global uchar *src_gy_ptr, uint src_gy_stride_x, uint src_gy_step_x, uint src_gy_stride_y, uint src_gy_step_y, uint src_gy_offset_first_element_in_bytes, __global uchar *vc_ptr, uint vc_stride_x, uint vc_step_x, uint vc_stride_y, uint vc_step_y, uint vc_offset_first_element_in_bytes, float sensitivity, float strength_thresh, float pow4_normalization_factor)</td></tr> |
| <tr class="memdesc:a0f0af2add0a40f2f4b8a14f409186a02"><td class="mdescLeft"> </td><td class="mdescRight">Function running harris score on 5x5 block size. <a href="#a0f0af2add0a40f2f4b8a14f409186a02">More...</a><br /></td></tr> |
| <tr class="separator:a0f0af2add0a40f2f4b8a14f409186a02"><td class="memSeparator" colspan="2"> </td></tr> |
| <tr class="memitem:a2fadfd6378605824bb7926e1ac0123fb"><td class="memItemLeft" align="right" valign="top">float16 </td><td class="memItemRight" valign="bottom"><a class="el" href="harris__corners_8cl.xhtml#a2fadfd6378605824bb7926e1ac0123fb">harris_score_1x7</a> (<a class="el" href="struct_image.xhtml">Image</a> *src_gx, <a class="el" href="struct_image.xhtml">Image</a> *src_gy, int row)</td></tr> |
| <tr class="memdesc:a2fadfd6378605824bb7926e1ac0123fb"><td class="mdescLeft"> </td><td class="mdescRight">Function for calculating harris score 1x7. <a href="#a2fadfd6378605824bb7926e1ac0123fb">More...</a><br /></td></tr> |
| <tr class="separator:a2fadfd6378605824bb7926e1ac0123fb"><td class="memSeparator" colspan="2"> </td></tr> |
| <tr class="memitem:a468ac2728816485f017f51faeb0a7d65"><td class="memItemLeft" align="right" valign="top">__kernel void </td><td class="memItemRight" valign="bottom"><a class="el" href="harris__corners_8cl.xhtml#a468ac2728816485f017f51faeb0a7d65">harris_score_7x7</a> (__global uchar *src_gx_ptr, uint src_gx_stride_x, uint src_gx_step_x, uint src_gx_stride_y, uint src_gx_step_y, uint src_gx_offset_first_element_in_bytes, __global uchar *src_gy_ptr, uint src_gy_stride_x, uint src_gy_step_x, uint src_gy_stride_y, uint src_gy_step_y, uint src_gy_offset_first_element_in_bytes, __global uchar *vc_ptr, uint vc_stride_x, uint vc_step_x, uint vc_stride_y, uint vc_step_y, uint vc_offset_first_element_in_bytes, float sensitivity, float strength_thresh, float pow4_normalization_factor)</td></tr> |
| <tr class="memdesc:a468ac2728816485f017f51faeb0a7d65"><td class="mdescLeft"> </td><td class="mdescRight">Function running harris score on 7x7 block size. <a href="#a468ac2728816485f017f51faeb0a7d65">More...</a><br /></td></tr> |
| <tr class="separator:a468ac2728816485f017f51faeb0a7d65"><td class="memSeparator" colspan="2"> </td></tr> |
| </table> |
| <h2 class="groupheader">Function Documentation</h2> |
| <a id="a71d10f5d9e840b6d270620a2cd856926"></a> |
| <h2 class="memtitle"><span class="permalink"><a href="#a71d10f5d9e840b6d270620a2cd856926">◆ </a></span>harris_score_1x5()</h2> |
| |
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| <tr> |
| <td class="mlabels-left"> |
| <table class="memname"> |
| <tr> |
| <td class="memname">float16 harris_score_1x5 </td> |
| <td>(</td> |
| <td class="paramtype"><a class="el" href="struct_image.xhtml">Image</a> * </td> |
| <td class="paramname"><em>src_gx</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype"><a class="el" href="struct_image.xhtml">Image</a> * </td> |
| <td class="paramname"><em>src_gy</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">int </td> |
| <td class="paramname"><em>row</em> </td> |
| </tr> |
| <tr> |
| <td></td> |
| <td>)</td> |
| <td></td><td></td> |
| </tr> |
| </table> |
| </td> |
| <td class="mlabels-right"> |
| <span class="mlabels"><span class="mlabel">inline</span></span> </td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| |
| <p>Function for calculating harris score 1x5. </p> |
| <dl class="params"><dt>Parameters</dt><dd> |
| <table class="params"> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gx</td><td>Pointer to gx gradient image. </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gy</td><td>Pointer to gy gradient image. </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">row</td><td>Relative row. </td></tr> |
| </table> |
| </dd> |
| </dl> |
| |
| <p class="definition">Definition at line <a class="el" href="harris__corners_8cl_source.xhtml#l00138">138</a> of file <a class="el" href="harris__corners_8cl_source.xhtml">harris_corners.cl</a>.</p> |
| <div class="fragment"><div class="line"><a name="l00139"></a><span class="lineno"> 139</span> {</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  float4 gx2 = 0.0f;</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  float4 gy2 = 0.0f;</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  float4 gxgy = 0.0f;</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span> </div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="comment">/* Row */</span></div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 8)</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  temp_gx = vload8(0, (__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(src_gx, -2, row));</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 8)</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  temp_gy = vload8(0, (__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(src_gy, -2, row));</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span> </div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  float4 gx = convert_float4(temp_gx.s0123);</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  float4 gy = convert_float4(temp_gy.s0123);</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  gx2 += (gx * gx);</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  gy2 += (gy * gy);</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  gxgy += (gx * gy);</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span> </div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  gx = convert_float4(temp_gx.s1234);</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  gy = convert_float4(temp_gy.s1234);</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  gx2 += (gx * gx);</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  gy2 += (gy * gy);</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  gxgy += (gx * gy);</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span> </div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  gx = convert_float4(temp_gx.s2345);</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  gy = convert_float4(temp_gy.s2345);</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  gx2 += (gx * gx);</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  gy2 += (gy * gy);</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  gxgy += (gx * gy);</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span> </div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  gx = convert_float4(temp_gx.s3456);</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  gy = convert_float4(temp_gy.s3456);</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  gx2 += (gx * gx);</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  gy2 += (gy * gy);</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  gxgy += (gx * gy);</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span> </div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  gx = convert_float4(temp_gx.s4567);</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  gy = convert_float4(temp_gy.s4567);</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  gx2 += (gx * gx);</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  gy2 += (gy * gy);</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  gxgy += (gx * gy);</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span> </div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  return (float16)(gx2, gy2, gxgy, (float4)0);</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span> }</div><div class="ttc" id="src_2core_2_c_l_2cl__kernels_2_helpers_8h_xhtml_a009469e4d9b8fce3b6d5e97d2077827d"><div class="ttname"><a href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a></div><div class="ttdeci">__global uchar * offset(const Image *img, int x, int y)</div><div class="ttdoc">Get the pointer position of a Image.</div><div class="ttdef"><b>Definition:</b> <a href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00328">helpers.h:328</a></div></div> |
| <div class="ttc" id="convolution3x3_8cl_xhtml_afb8c72ce35c4a1f4a2588d6573e54aa1"><div class="ttname"><a href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a></div><div class="ttdeci">#define DATA_TYPE</div><div class="ttdef"><b>Definition:</b> <a href="convolution3x3_8cl_source.xhtml#l00027">convolution3x3.cl:27</a></div></div> |
| <div class="ttc" id="src_2core_2_c_l_2cl__kernels_2_helpers_8h_xhtml_a36f754c05b6fddf6df0d8d0a74f8159f"><div class="ttname"><a href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a></div><div class="ttdeci">#define VEC_DATA_TYPE(type, size)</div><div class="ttdef"><b>Definition:</b> <a href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00073">helpers.h:73</a></div></div> |
| </div><!-- fragment --> |
| <p class="reference">References <a class="el" href="convolution3x3_8cl_source.xhtml#l00027">DATA_TYPE</a>, <a class="el" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00328">offset()</a>, and <a class="el" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00073">VEC_DATA_TYPE</a>.</p> |
| |
| <p class="reference">Referenced by <a class="el" href="harris__corners_8cl_source.xhtml#l00210">harris_score_5x5()</a>.</p> |
| |
| </div> |
| </div> |
| <a id="a2fadfd6378605824bb7926e1ac0123fb"></a> |
| <h2 class="memtitle"><span class="permalink"><a href="#a2fadfd6378605824bb7926e1ac0123fb">◆ </a></span>harris_score_1x7()</h2> |
| |
| <div class="memitem"> |
| <div class="memproto"> |
| <table class="mlabels"> |
| <tr> |
| <td class="mlabels-left"> |
| <table class="memname"> |
| <tr> |
| <td class="memname">float16 harris_score_1x7 </td> |
| <td>(</td> |
| <td class="paramtype"><a class="el" href="struct_image.xhtml">Image</a> * </td> |
| <td class="paramname"><em>src_gx</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype"><a class="el" href="struct_image.xhtml">Image</a> * </td> |
| <td class="paramname"><em>src_gy</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">int </td> |
| <td class="paramname"><em>row</em> </td> |
| </tr> |
| <tr> |
| <td></td> |
| <td>)</td> |
| <td></td><td></td> |
| </tr> |
| </table> |
| </td> |
| <td class="mlabels-right"> |
| <span class="mlabels"><span class="mlabel">inline</span></span> </td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| |
| <p>Function for calculating harris score 1x7. </p> |
| <dl class="params"><dt>Parameters</dt><dd> |
| <table class="params"> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gx</td><td>Pointer to gx gradient image. </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gy</td><td>Pointer to gy gradient image. </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">row</td><td>Relative row. </td></tr> |
| </table> |
| </dd> |
| </dl> |
| |
| <p class="definition">Definition at line <a class="el" href="harris__corners_8cl_source.xhtml#l00253">253</a> of file <a class="el" href="harris__corners_8cl_source.xhtml">harris_corners.cl</a>.</p> |
| <div class="fragment"><div class="line"><a name="l00254"></a><span class="lineno"> 254</span> {</div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  float4 gx2 = 0.0f;</div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  float4 gy2 = 0.0f;</div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  float4 gxgy = 0.0f;</div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span> </div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="comment">/* Row */</span></div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 8)</div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  temp_gx0 = vload8(0, (__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(src_gx, -3, row));</div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 8)</div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  temp_gy0 = vload8(0, (__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(src_gy, -3, row));</div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 2)</div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  temp_gx1 = vload2(0, (__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(src_gx, 5, row));</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  <a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 2)</div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  temp_gy1 = vload2(0, (__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(src_gy, 5, row));</div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span> </div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  float4 gx = convert_float4(temp_gx0.s0123);</div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  float4 gy = convert_float4(temp_gy0.s0123);</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  gx2 += (gx * gx);</div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  gy2 += (gy * gy);</div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  gxgy += (gx * gy);</div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span> </div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  gx = convert_float4(temp_gx0.s1234);</div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  gy = convert_float4(temp_gy0.s1234);</div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  gx2 += (gx * gx);</div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  gy2 += (gy * gy);</div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  gxgy += (gx * gy);</div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span> </div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  gx = convert_float4(temp_gx0.s2345);</div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  gy = convert_float4(temp_gy0.s2345);</div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  gx2 += (gx * gx);</div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  gy2 += (gy * gy);</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  gxgy += (gx * gy);</div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span> </div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  gx = convert_float4(temp_gx0.s3456);</div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  gy = convert_float4(temp_gy0.s3456);</div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  gx2 += (gx * gx);</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  gy2 += (gy * gy);</div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  gxgy += (gx * gy);</div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span> </div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  gx = convert_float4(temp_gx0.s4567);</div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  gy = convert_float4(temp_gy0.s4567);</div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  gx2 += (gx * gx);</div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  gy2 += (gy * gy);</div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  gxgy += (gx * gy);</div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span> </div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  gx = convert_float4((<a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 4))(temp_gx0.s567, temp_gx1.s0));</div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  gy = convert_float4((<a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 4))(temp_gy0.s567, temp_gy1.s0));</div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  gx2 += (gx * gx);</div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  gy2 += (gy * gy);</div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  gxgy += (gx * gy);</div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span> </div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  gx = convert_float4((<a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 4))(temp_gx0.s67, temp_gx1.s01));</div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  gy = convert_float4((<a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 4))(temp_gy0.s67, temp_gy1.s01));</div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  gx2 += (gx * gx);</div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  gy2 += (gy * gy);</div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  gxgy += (gx * gy);</div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span> </div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  return (float16)(gx2, gy2, gxgy, (float4)0);</div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span> }</div><div class="ttc" id="src_2core_2_c_l_2cl__kernels_2_helpers_8h_xhtml_a009469e4d9b8fce3b6d5e97d2077827d"><div class="ttname"><a href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a></div><div class="ttdeci">__global uchar * offset(const Image *img, int x, int y)</div><div class="ttdoc">Get the pointer position of a Image.</div><div class="ttdef"><b>Definition:</b> <a href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00328">helpers.h:328</a></div></div> |
| <div class="ttc" id="convolution3x3_8cl_xhtml_afb8c72ce35c4a1f4a2588d6573e54aa1"><div class="ttname"><a href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a></div><div class="ttdeci">#define DATA_TYPE</div><div class="ttdef"><b>Definition:</b> <a href="convolution3x3_8cl_source.xhtml#l00027">convolution3x3.cl:27</a></div></div> |
| <div class="ttc" id="src_2core_2_c_l_2cl__kernels_2_helpers_8h_xhtml_a36f754c05b6fddf6df0d8d0a74f8159f"><div class="ttname"><a href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a></div><div class="ttdeci">#define VEC_DATA_TYPE(type, size)</div><div class="ttdef"><b>Definition:</b> <a href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00073">helpers.h:73</a></div></div> |
| </div><!-- fragment --> |
| <p class="reference">References <a class="el" href="convolution3x3_8cl_source.xhtml#l00027">DATA_TYPE</a>, <a class="el" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00328">offset()</a>, and <a class="el" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00073">VEC_DATA_TYPE</a>.</p> |
| |
| <p class="reference">Referenced by <a class="el" href="harris__corners_8cl_source.xhtml#l00341">harris_score_7x7()</a>.</p> |
| |
| </div> |
| </div> |
| <a id="a2cf3b8c23c9f8f383d81d13bfff96e3d"></a> |
| <h2 class="memtitle"><span class="permalink"><a href="#a2cf3b8c23c9f8f383d81d13bfff96e3d">◆ </a></span>harris_score_3x3()</h2> |
| |
| <div class="memitem"> |
| <div class="memproto"> |
| <table class="memname"> |
| <tr> |
| <td class="memname">__kernel void harris_score_3x3 </td> |
| <td>(</td> |
| <td class="paramtype">__global uchar * </td> |
| <td class="paramname"><em>src_gx_ptr</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>src_gx_stride_x</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>src_gx_step_x</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>src_gx_stride_y</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>src_gx_step_y</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>src_gx_offset_first_element_in_bytes</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">__global uchar * </td> |
| <td class="paramname"><em>src_gy_ptr</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>src_gy_stride_x</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>src_gy_step_x</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>src_gy_stride_y</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>src_gy_step_y</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>src_gy_offset_first_element_in_bytes</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">__global uchar * </td> |
| <td class="paramname"><em>vc_ptr</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>vc_stride_x</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>vc_step_x</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>vc_stride_y</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>vc_step_y</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>vc_offset_first_element_in_bytes</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">float </td> |
| <td class="paramname"><em>sensitivity</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">float </td> |
| <td class="paramname"><em>strength_thresh</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">float </td> |
| <td class="paramname"><em>pow4_normalization_factor</em> </td> |
| </tr> |
| <tr> |
| <td></td> |
| <td>)</td> |
| <td></td><td></td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| |
| <p>Function running harris score on 3x3 block size. </p> |
| <dl class="section attention"><dt>Attention</dt><dd>: The input data type should be passed using a compile option -DDATA_TYPE. Supported types: short and int. e.g. -DDATA_TYPE=short.</dd></dl> |
| <dl class="params"><dt>Parameters</dt><dd> |
| <table class="params"> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gx_ptr</td><td>Pointer to the first source image. Supported data types: S16, S32 </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gx_stride_x</td><td>Stride of the source image in X dimension (in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gx_step_x</td><td>src_gx_stride_x * number of elements along X processed per workitem(in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gx_stride_y</td><td>Stride of the source image in Y dimension (in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gx_step_y</td><td>src_gx_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gx_offset_first_element_in_bytes</td><td>The offset of the first element in the source image </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gy_ptr</td><td>Pointer to the second source image. Supported data types: S16, S32 </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gy_stride_x</td><td>Stride of the destination image in X dimension (in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gy_step_x</td><td>src_gy_stride_x * number of elements along X processed per workitem(in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gy_stride_y</td><td>Stride of the destination image in Y dimension (in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gy_step_y</td><td>src_gy_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gy_offset_first_element_in_bytes</td><td>The offset of the first element in the destination image </td></tr> |
| <tr><td class="paramdir">[out]</td><td class="paramname">vc_ptr</td><td>Pointer to the destination image. Supported data types: F32 </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">vc_stride_x</td><td>Stride of the destination image in X dimension (in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">vc_step_x</td><td>vc_stride_x * number of elements along X processed per workitem(in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">vc_stride_y</td><td>Stride of the destination image in Y dimension (in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">vc_step_y</td><td>vc_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">vc_offset_first_element_in_bytes</td><td>The offset of the first element in the destination image </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">sensitivity</td><td>Sensitivity threshold k from the Harris-Stephens equation </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">strength_thresh</td><td>Minimum threshold with which to eliminate Harris Corner scores </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">pow4_normalization_factor</td><td>Normalization factor to apply harris score </td></tr> |
| </table> |
| </dd> |
| </dl> |
| |
| <p class="definition">Definition at line <a class="el" href="harris__corners_8cl_source.xhtml#l00053">53</a> of file <a class="el" href="harris__corners_8cl_source.xhtml">harris_corners.cl</a>.</p> |
| <div class="fragment"><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> {</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <a class="code" href="struct_image.xhtml">Image</a> src_gx = <a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(src_gx);</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <a class="code" href="struct_image.xhtml">Image</a> src_gy = <a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(src_gy);</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <a class="code" href="struct_image.xhtml">Image</a> vc = <a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(vc);</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="comment">/* Gx^2, Gy^2 and Gx*Gy */</span></div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  float4 gx2 = (float4)0.0f;</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  float4 gy2 = (float4)0.0f;</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  float4 gxgy = (float4)0.0f;</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> </div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="comment">/* Row0 */</span></div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 8)</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  temp_gx = vload8(0, (__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&src_gx, -1, -1));</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 8)</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  temp_gy = vload8(0, (__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&src_gy, -1, -1));</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> </div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  float4 l_gx = convert_float4(temp_gx.s0123);</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  float4 m_gx = convert_float4(temp_gx.s1234);</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  float4 r_gx = convert_float4(temp_gx.s2345);</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span> </div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  float4 l_gy = convert_float4(temp_gy.s0123);</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  float4 m_gy = convert_float4(temp_gy.s1234);</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  float4 r_gy = convert_float4(temp_gy.s2345);</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> </div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  gx2 += (l_gx * l_gx) + (m_gx * m_gx) + (r_gx * r_gx);</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  gy2 += (l_gy * l_gy) + (m_gy * m_gy) + (r_gy * r_gy);</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  gxgy += (l_gx * l_gy) + (m_gx * m_gy) + (r_gx * r_gy);</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> </div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="comment">/* Row1 */</span></div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  temp_gx = vload8(0, (__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&src_gx, -1, 0));</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  temp_gy = vload8(0, (__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&src_gy, -1, 0));</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  l_gx = convert_float4(temp_gx.s0123);</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  m_gx = convert_float4(temp_gx.s1234);</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  r_gx = convert_float4(temp_gx.s2345);</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  l_gy = convert_float4(temp_gy.s0123);</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  m_gy = convert_float4(temp_gy.s1234);</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  r_gy = convert_float4(temp_gy.s2345);</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  gx2 += (l_gx * l_gx) + (m_gx * m_gx) + (r_gx * r_gx);</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  gy2 += (l_gy * l_gy) + (m_gy * m_gy) + (r_gy * r_gy);</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  gxgy += (l_gx * l_gy) + (m_gx * m_gy) + (r_gx * r_gy);</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> </div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="comment">/* Row2 */</span></div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  temp_gx = vload8(0, (__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&src_gx, -1, 1));</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  temp_gy = vload8(0, (__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&src_gy, -1, 1));</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  l_gx = convert_float4(temp_gx.s0123);</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  m_gx = convert_float4(temp_gx.s1234);</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  r_gx = convert_float4(temp_gx.s2345);</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span> </div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  l_gy = convert_float4(temp_gy.s0123);</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  m_gy = convert_float4(temp_gy.s1234);</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  r_gy = convert_float4(temp_gy.s2345);</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> </div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  gx2 += (l_gx * l_gx) + (m_gx * m_gx) + (r_gx * r_gx);</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  gy2 += (l_gy * l_gy) + (m_gy * m_gy) + (r_gy * r_gy);</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  gxgy += (l_gx * l_gy) + (m_gx * m_gy) + (r_gx * r_gy);</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span> </div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="comment">/* Compute trace and determinant */</span></div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  float4 trace = gx2 + gy2;</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  float4 det = gx2 * gy2 - (gxgy * gxgy);</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="comment">/* Compute harris score */</span></div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  float4 mc = (det - (sensitivity * (trace * trace))) * pow4_normalization_factor;</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  mc = <a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#af77145fbdc6b0c8931148f5597d9de53">select</a>(0.0f, mc, mc > (float4)strength_thresh);</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  vstore4(mc, 0, (__global <span class="keywordtype">float</span> *)vc.ptr);</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span> }</div><div class="ttc" id="src_2core_2_c_l_2cl__kernels_2_helpers_8h_xhtml_a009469e4d9b8fce3b6d5e97d2077827d"><div class="ttname"><a href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a></div><div class="ttdeci">__global uchar * offset(const Image *img, int x, int y)</div><div class="ttdoc">Get the pointer position of a Image.</div><div class="ttdef"><b>Definition:</b> <a href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00328">helpers.h:328</a></div></div> |
| <div class="ttc" id="src_2core_2_c_l_2cl__kernels_2_helpers_8h_xhtml_aebe814363556c244be043b13e7969197"><div class="ttname"><a href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a></div><div class="ttdeci">#define CONVERT_TO_IMAGE_STRUCT(name)</div><div class="ttdef"><b>Definition:</b> <a href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00129">helpers.h:129</a></div></div> |
| <div class="ttc" id="convolution3x3_8cl_xhtml_afb8c72ce35c4a1f4a2588d6573e54aa1"><div class="ttname"><a href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a></div><div class="ttdeci">#define DATA_TYPE</div><div class="ttdef"><b>Definition:</b> <a href="convolution3x3_8cl_source.xhtml#l00027">convolution3x3.cl:27</a></div></div> |
| <div class="ttc" id="struct_image_xhtml"><div class="ttname"><a href="struct_image.xhtml">Image</a></div><div class="ttdoc">Structure to hold Image information.</div><div class="ttdef"><b>Definition:</b> <a href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00167">helpers.h:167</a></div></div> |
| <div class="ttc" id="namespacearm__compute_1_1test_1_1validation_xhtml_af77145fbdc6b0c8931148f5597d9de53"><div class="ttname"><a href="namespacearm__compute_1_1test_1_1validation.xhtml#af77145fbdc6b0c8931148f5597d9de53">arm_compute::test::validation::select</a></div><div class="ttdeci">CLSelect select</div><div class="ttdef"><b>Definition:</b> <a href="_c_l_2_select_8cpp_source.xhtml#l00164">Select.cpp:164</a></div></div> |
| <div class="ttc" id="src_2core_2_c_l_2cl__kernels_2_helpers_8h_xhtml_a36f754c05b6fddf6df0d8d0a74f8159f"><div class="ttname"><a href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a></div><div class="ttdeci">#define VEC_DATA_TYPE(type, size)</div><div class="ttdef"><b>Definition:</b> <a href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00073">helpers.h:73</a></div></div> |
| </div><!-- fragment --> |
| <p class="reference">References <a class="el" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00129">CONVERT_TO_IMAGE_STRUCT</a>, <a class="el" href="convolution3x3_8cl_source.xhtml#l00027">DATA_TYPE</a>, <a class="el" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00328">offset()</a>, <a class="el" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00169">Image::ptr</a>, <a class="el" href="_c_l_2_select_8cpp_source.xhtml#l00164">arm_compute::test::validation::select</a>, and <a class="el" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00073">VEC_DATA_TYPE</a>.</p> |
| |
| </div> |
| </div> |
| <a id="a0f0af2add0a40f2f4b8a14f409186a02"></a> |
| <h2 class="memtitle"><span class="permalink"><a href="#a0f0af2add0a40f2f4b8a14f409186a02">◆ </a></span>harris_score_5x5()</h2> |
| |
| <div class="memitem"> |
| <div class="memproto"> |
| <table class="memname"> |
| <tr> |
| <td class="memname">__kernel void harris_score_5x5 </td> |
| <td>(</td> |
| <td class="paramtype">__global uchar * </td> |
| <td class="paramname"><em>src_gx_ptr</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>src_gx_stride_x</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>src_gx_step_x</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>src_gx_stride_y</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>src_gx_step_y</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>src_gx_offset_first_element_in_bytes</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">__global uchar * </td> |
| <td class="paramname"><em>src_gy_ptr</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>src_gy_stride_x</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>src_gy_step_x</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>src_gy_stride_y</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>src_gy_step_y</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>src_gy_offset_first_element_in_bytes</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">__global uchar * </td> |
| <td class="paramname"><em>vc_ptr</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>vc_stride_x</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>vc_step_x</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>vc_stride_y</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>vc_step_y</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>vc_offset_first_element_in_bytes</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">float </td> |
| <td class="paramname"><em>sensitivity</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">float </td> |
| <td class="paramname"><em>strength_thresh</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">float </td> |
| <td class="paramname"><em>pow4_normalization_factor</em> </td> |
| </tr> |
| <tr> |
| <td></td> |
| <td>)</td> |
| <td></td><td></td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| |
| <p>Function running harris score on 5x5 block size. </p> |
| <dl class="section attention"><dt>Attention</dt><dd>: The input data type should be passed using a compile option -DDATA_TYPE. Supported types: short and int. e.g. -DDATA_TYPE=short.</dd></dl> |
| <dl class="params"><dt>Parameters</dt><dd> |
| <table class="params"> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gx_ptr</td><td>Pointer to the first source image. Supported data types: S16, S32 </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gx_stride_x</td><td>Stride of the source image in X dimension (in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gx_step_x</td><td>src_gx_stride_x * number of elements along X processed per workitem(in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gx_stride_y</td><td>Stride of the source image in Y dimension (in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gx_step_y</td><td>src_gx_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gx_offset_first_element_in_bytes</td><td>The offset of the first element in the source image </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gy_ptr</td><td>Pointer to the second source image. Supported data types: S16, S32 </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gy_stride_x</td><td>Stride of the destination image in X dimension (in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gy_step_x</td><td>src_gy_stride_x * number of elements along X processed per workitem(in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gy_stride_y</td><td>Stride of the destination image in Y dimension (in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gy_step_y</td><td>src_gy_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gy_offset_first_element_in_bytes</td><td>The offset of the first element in the destination image </td></tr> |
| <tr><td class="paramdir">[out]</td><td class="paramname">vc_ptr</td><td>Pointer to the destination image. Supported data types: F32 </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">vc_stride_x</td><td>Stride of the destination image in X dimension (in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">vc_step_x</td><td>vc_stride_x * number of elements along X processed per workitem(in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">vc_stride_y</td><td>Stride of the destination image in Y dimension (in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">vc_step_y</td><td>vc_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">vc_offset_first_element_in_bytes</td><td>The offset of the first element in the destination image </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">sensitivity</td><td>Sensitivity threshold k from the Harris-Stephens equation </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">strength_thresh</td><td>Minimum threshold with which to eliminate Harris Corner scores </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">pow4_normalization_factor</td><td>Normalization factor to apply harris score </td></tr> |
| </table> |
| </dd> |
| </dl> |
| |
| <p class="definition">Definition at line <a class="el" href="harris__corners_8cl_source.xhtml#l00210">210</a> of file <a class="el" href="harris__corners_8cl_source.xhtml">harris_corners.cl</a>.</p> |
| <div class="fragment"><div class="line"><a name="l00217"></a><span class="lineno"> 217</span> {</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <a class="code" href="struct_image.xhtml">Image</a> src_gx = <a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(src_gx);</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <a class="code" href="struct_image.xhtml">Image</a> src_gy = <a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(src_gy);</div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <a class="code" href="struct_image.xhtml">Image</a> vc = <a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(vc);</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span> </div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="comment">/* Gx^2, Gy^2 and Gx*Gy */</span></div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  float16 res = (float16)0.0f;</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span> </div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="comment">/* Compute row */</span></div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="keywordflow">for</span>(<span class="keywordtype">int</span> i = -2; i < 3; i++)</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  {</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  res += <a class="code" href="harris__corners_8cl.xhtml#a71d10f5d9e840b6d270620a2cd856926">harris_score_1x5</a>(&src_gx, &src_gy, i);</div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  }</div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span> </div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  float4 gx2 = res.s0123;</div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  float4 gy2 = res.s4567;</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  float4 gxgy = res.s89AB;</div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span> </div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <span class="comment">/* Compute trace and determinant */</span></div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  float4 trace = gx2 + gy2;</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  float4 det = gx2 * gy2 - (gxgy * gxgy);</div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span> </div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="comment">/* Compute harris score */</span></div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  float4 mc = (det - (sensitivity * (trace * trace))) * pow4_normalization_factor;</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span> </div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  mc = <a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#af77145fbdc6b0c8931148f5597d9de53">select</a>(0.0f, mc, mc > (float4)strength_thresh);</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span> </div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  vstore4(mc, 0, (__global <span class="keywordtype">float</span> *)vc.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span> }</div><div class="ttc" id="src_2core_2_c_l_2cl__kernels_2_helpers_8h_xhtml_aebe814363556c244be043b13e7969197"><div class="ttname"><a href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a></div><div class="ttdeci">#define CONVERT_TO_IMAGE_STRUCT(name)</div><div class="ttdef"><b>Definition:</b> <a href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00129">helpers.h:129</a></div></div> |
| <div class="ttc" id="harris__corners_8cl_xhtml_a71d10f5d9e840b6d270620a2cd856926"><div class="ttname"><a href="harris__corners_8cl.xhtml#a71d10f5d9e840b6d270620a2cd856926">harris_score_1x5</a></div><div class="ttdeci">float16 harris_score_1x5(Image *src_gx, Image *src_gy, int row)</div><div class="ttdoc">Function for calculating harris score 1x5.</div><div class="ttdef"><b>Definition:</b> <a href="harris__corners_8cl_source.xhtml#l00138">harris_corners.cl:138</a></div></div> |
| <div class="ttc" id="struct_image_xhtml"><div class="ttname"><a href="struct_image.xhtml">Image</a></div><div class="ttdoc">Structure to hold Image information.</div><div class="ttdef"><b>Definition:</b> <a href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00167">helpers.h:167</a></div></div> |
| <div class="ttc" id="struct_image_xhtml_acf52c23cbd7424606c10a606524e3e32"><div class="ttname"><a href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">Image::ptr</a></div><div class="ttdeci">__global uchar * ptr</div><div class="ttdoc">Pointer to the starting postion of the buffer.</div><div class="ttdef"><b>Definition:</b> <a href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00169">helpers.h:169</a></div></div> |
| <div class="ttc" id="namespacearm__compute_1_1test_1_1validation_xhtml_af77145fbdc6b0c8931148f5597d9de53"><div class="ttname"><a href="namespacearm__compute_1_1test_1_1validation.xhtml#af77145fbdc6b0c8931148f5597d9de53">arm_compute::test::validation::select</a></div><div class="ttdeci">CLSelect select</div><div class="ttdef"><b>Definition:</b> <a href="_c_l_2_select_8cpp_source.xhtml#l00164">Select.cpp:164</a></div></div> |
| </div><!-- fragment --> |
| <p class="reference">References <a class="el" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00129">CONVERT_TO_IMAGE_STRUCT</a>, <a class="el" href="harris__corners_8cl_source.xhtml#l00138">harris_score_1x5()</a>, <a class="el" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00169">Image::ptr</a>, and <a class="el" href="_c_l_2_select_8cpp_source.xhtml#l00164">arm_compute::test::validation::select</a>.</p> |
| |
| </div> |
| </div> |
| <a id="a468ac2728816485f017f51faeb0a7d65"></a> |
| <h2 class="memtitle"><span class="permalink"><a href="#a468ac2728816485f017f51faeb0a7d65">◆ </a></span>harris_score_7x7()</h2> |
| |
| <div class="memitem"> |
| <div class="memproto"> |
| <table class="memname"> |
| <tr> |
| <td class="memname">__kernel void harris_score_7x7 </td> |
| <td>(</td> |
| <td class="paramtype">__global uchar * </td> |
| <td class="paramname"><em>src_gx_ptr</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>src_gx_stride_x</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>src_gx_step_x</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>src_gx_stride_y</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>src_gx_step_y</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>src_gx_offset_first_element_in_bytes</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">__global uchar * </td> |
| <td class="paramname"><em>src_gy_ptr</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>src_gy_stride_x</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>src_gy_step_x</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>src_gy_stride_y</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>src_gy_step_y</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>src_gy_offset_first_element_in_bytes</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">__global uchar * </td> |
| <td class="paramname"><em>vc_ptr</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>vc_stride_x</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>vc_step_x</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>vc_stride_y</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>vc_step_y</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">uint </td> |
| <td class="paramname"><em>vc_offset_first_element_in_bytes</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">float </td> |
| <td class="paramname"><em>sensitivity</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">float </td> |
| <td class="paramname"><em>strength_thresh</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">float </td> |
| <td class="paramname"><em>pow4_normalization_factor</em> </td> |
| </tr> |
| <tr> |
| <td></td> |
| <td>)</td> |
| <td></td><td></td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| |
| <p>Function running harris score on 7x7 block size. </p> |
| <dl class="section attention"><dt>Attention</dt><dd>: The input data type should be passed using a compile option -DDATA_TYPE. Supported types: short and int. e.g. -DDATA_TYPE=short.</dd></dl> |
| <dl class="params"><dt>Parameters</dt><dd> |
| <table class="params"> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gx_ptr</td><td>Pointer to the first source image. Supported data types: S16, S32 </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gx_stride_x</td><td>Stride of the source image in X dimension (in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gx_step_x</td><td>src_gx_stride_x * number of elements along X processed per workitem(in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gx_stride_y</td><td>Stride of the source image in Y dimension (in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gx_step_y</td><td>src_gx_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gx_offset_first_element_in_bytes</td><td>The offset of the first element in the source image </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gy_ptr</td><td>Pointer to the second source image. Supported data types: S16, S32 </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gy_stride_x</td><td>Stride of the destination image in X dimension (in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gy_step_x</td><td>src_gy_stride_x * number of elements along X processed per workitem(in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gy_stride_y</td><td>Stride of the destination image in Y dimension (in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gy_step_y</td><td>src_gy_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">src_gy_offset_first_element_in_bytes</td><td>The offset of the first element in the destination image </td></tr> |
| <tr><td class="paramdir">[out]</td><td class="paramname">vc_ptr</td><td>Pointer to the destination image. Supported data types: F32 </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">vc_stride_x</td><td>Stride of the destination image in X dimension (in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">vc_step_x</td><td>vc_stride_x * number of elements along X processed per workitem(in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">vc_stride_y</td><td>Stride of the destination image in Y dimension (in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">vc_step_y</td><td>vc_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">vc_offset_first_element_in_bytes</td><td>The offset of the first element in the destination image </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">sensitivity</td><td>Sensitivity threshold k from the Harris-Stephens equation </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">strength_thresh</td><td>Minimum threshold with which to eliminate Harris Corner scores </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">pow4_normalization_factor</td><td>Normalization factor to apply harris score </td></tr> |
| </table> |
| </dd> |
| </dl> |
| |
| <p class="definition">Definition at line <a class="el" href="harris__corners_8cl_source.xhtml#l00341">341</a> of file <a class="el" href="harris__corners_8cl_source.xhtml">harris_corners.cl</a>.</p> |
| <div class="fragment"><div class="line"><a name="l00348"></a><span class="lineno"> 348</span> {</div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <a class="code" href="struct_image.xhtml">Image</a> src_gx = <a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(src_gx);</div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <a class="code" href="struct_image.xhtml">Image</a> src_gy = <a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(src_gy);</div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  <a class="code" href="struct_image.xhtml">Image</a> vc = <a class="code" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(vc);</div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span> </div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  <span class="comment">/* Gx^2, Gy^2 and Gx*Gy */</span></div><div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  float16 res = (float16)0.0f;</div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span> </div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <span class="comment">/* Compute row */</span></div><div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <span class="keywordflow">for</span>(<span class="keywordtype">int</span> i = -3; i < 4; i++)</div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  {</div><div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  res += <a class="code" href="harris__corners_8cl.xhtml#a2fadfd6378605824bb7926e1ac0123fb">harris_score_1x7</a>(&src_gx, &src_gy, i);</div><div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  }</div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span> </div><div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  float4 gx2 = res.s0123;</div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  float4 gy2 = res.s4567;</div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  float4 gxgy = res.s89AB;</div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span> </div><div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="comment">/* Compute trace and determinant */</span></div><div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  float4 trace = gx2 + gy2;</div><div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  float4 det = gx2 * gy2 - (gxgy * gxgy);</div><div class="line"><a name="l00369"></a><span class="lineno"> 369</span> </div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  <span class="comment">/* Compute harris score */</span></div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  float4 mc = (det - (sensitivity * (trace * trace))) * pow4_normalization_factor;</div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span> </div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  mc = <a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#af77145fbdc6b0c8931148f5597d9de53">select</a>(0.0f, mc, mc > (float4)strength_thresh);</div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span> </div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  vstore4(mc, 0, (__global <span class="keywordtype">float</span> *)vc.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span> }</div><div class="ttc" id="src_2core_2_c_l_2cl__kernels_2_helpers_8h_xhtml_aebe814363556c244be043b13e7969197"><div class="ttname"><a href="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a></div><div class="ttdeci">#define CONVERT_TO_IMAGE_STRUCT(name)</div><div class="ttdef"><b>Definition:</b> <a href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00129">helpers.h:129</a></div></div> |
| <div class="ttc" id="struct_image_xhtml"><div class="ttname"><a href="struct_image.xhtml">Image</a></div><div class="ttdoc">Structure to hold Image information.</div><div class="ttdef"><b>Definition:</b> <a href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00167">helpers.h:167</a></div></div> |
| <div class="ttc" id="struct_image_xhtml_acf52c23cbd7424606c10a606524e3e32"><div class="ttname"><a href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">Image::ptr</a></div><div class="ttdeci">__global uchar * ptr</div><div class="ttdoc">Pointer to the starting postion of the buffer.</div><div class="ttdef"><b>Definition:</b> <a href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00169">helpers.h:169</a></div></div> |
| <div class="ttc" id="namespacearm__compute_1_1test_1_1validation_xhtml_af77145fbdc6b0c8931148f5597d9de53"><div class="ttname"><a href="namespacearm__compute_1_1test_1_1validation.xhtml#af77145fbdc6b0c8931148f5597d9de53">arm_compute::test::validation::select</a></div><div class="ttdeci">CLSelect select</div><div class="ttdef"><b>Definition:</b> <a href="_c_l_2_select_8cpp_source.xhtml#l00164">Select.cpp:164</a></div></div> |
| <div class="ttc" id="harris__corners_8cl_xhtml_a2fadfd6378605824bb7926e1ac0123fb"><div class="ttname"><a href="harris__corners_8cl.xhtml#a2fadfd6378605824bb7926e1ac0123fb">harris_score_1x7</a></div><div class="ttdeci">float16 harris_score_1x7(Image *src_gx, Image *src_gy, int row)</div><div class="ttdoc">Function for calculating harris score 1x7.</div><div class="ttdef"><b>Definition:</b> <a href="harris__corners_8cl_source.xhtml#l00253">harris_corners.cl:253</a></div></div> |
| </div><!-- fragment --> |
| <p class="reference">References <a class="el" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00129">CONVERT_TO_IMAGE_STRUCT</a>, <a class="el" href="harris__corners_8cl_source.xhtml#l00253">harris_score_1x7()</a>, <a class="el" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00169">Image::ptr</a>, and <a class="el" href="_c_l_2_select_8cpp_source.xhtml#l00164">arm_compute::test::validation::select</a>.</p> |
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