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<div class="title">HOGInfo.cpp</div> </div>
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<a href="_h_o_g_info_8cpp.xhtml">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment"> * Copyright (c) 2016-2019 ARM Limited.</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment"> * SPDX-License-Identifier: MIT</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a copy</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="comment"> * of this software and associated documentation files (the &quot;Software&quot;), to</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="comment"> * deal in the Software without restriction, including without limitation the</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="comment"> * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="comment"> * sell copies of the Software, and to permit persons to whom the Software is</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="comment"> * furnished to do so, subject to the following conditions:</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="comment"> * The above copyright notice and this permission notice shall be included in all</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="comment"> * copies or substantial portions of the Software.</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="comment"> * THE SOFTWARE IS PROVIDED &quot;AS IS&quot;, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="comment"> * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="comment"> * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="comment"> * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="comment"> * SOFTWARE.</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="_h_o_g_info_8h.xhtml">arm_compute/core/HOGInfo.h</a>&quot;</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="_error_8h.xhtml">arm_compute/core/Error.h</a>&quot;</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="_validate_8h.xhtml">arm_compute/core/Validate.h</a>&quot;</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;<span class="keyword">using namespace </span><a class="code" href="namespacearm__compute.xhtml">arm_compute</a>;</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;</div><div class="line"><a name="l00031"></a><span class="lineno"><a class="line" href="classarm__compute_1_1_h_o_g_info.xhtml#aed28257d62b9129062bfd61600531648"> 31</a></span>&#160;<a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#aed28257d62b9129062bfd61600531648">HOGInfo::HOGInfo</a>()</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160; : _cell_size(), _block_size(), _detection_window_size(), _block_stride(), _num_bins(0), _normalization_type(<a class="code" href="namespacearm__compute.xhtml#a673665b4587a2956fcbad5f0e9ba89d3">HOGNormType</a>::<a class="code" href="namespacearm__compute.xhtml#a673665b4587a2956fcbad5f0e9ba89d3ac9e68c0594494ec85805b225a7acb9c2">L2HYS_NORM</a>), _l2_hyst_threshold(0.0f), _phase_type(<a class="code" href="namespacearm__compute.xhtml#af00a42ecad444bbda75cde1b64bd7e72">PhaseType</a>::<a class="code" href="namespacearm__compute.xhtml#af00a42ecad444bbda75cde1b64bd7e72aaf36b47f395cd01f48b8fc1013665054">UNSIGNED</a>),</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160; _descriptor_size(0)</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160;{</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160;}</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160;</div><div class="line"><a name="l00037"></a><span class="lineno"><a class="line" href="classarm__compute_1_1_h_o_g_info.xhtml#aeaa7d619922de47d6239b0167a58e2c7"> 37</a></span>&#160;<a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#aed28257d62b9129062bfd61600531648">HOGInfo::HOGInfo</a>(<span class="keyword">const</span> <a class="code" href="classarm__compute_1_1_size2_d.xhtml">Size2D</a> &amp;cell_size, <span class="keyword">const</span> <a class="code" href="classarm__compute_1_1_size2_d.xhtml">Size2D</a> &amp;block_size, <span class="keyword">const</span> <a class="code" href="classarm__compute_1_1_size2_d.xhtml">Size2D</a> &amp;detection_window_size, <span class="keyword">const</span> <a class="code" href="classarm__compute_1_1_size2_d.xhtml">Size2D</a> &amp;block_stride, <span class="keywordtype">size_t</span> num_bins,</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; <a class="code" href="namespacearm__compute.xhtml#a673665b4587a2956fcbad5f0e9ba89d3">HOGNormType</a> normalization_type, <span class="keywordtype">float</span> l2_hyst_threshold, <a class="code" href="namespacearm__compute.xhtml#af00a42ecad444bbda75cde1b64bd7e72">PhaseType</a> phase_type)</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; : <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml">HOGInfo</a>()</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160;{</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#a75215e8ba07a5ec88ee8c902e306e887">init</a>(<a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#aaefa291ad3cc3e3210c8b8ef2ffde476">cell_size</a>, <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#ae561964ccc0e0a5750676b9c7dd7cd44">block_size</a>, <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#a7cbda2c789c461237f0c6eaee8f8cd2a">detection_window_size</a>, <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#a207391d3ac69d9a0839104f784f888fd">block_stride</a>, <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#ad96530ddba514601d376f991b568b346">num_bins</a>, <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#a5a4a2ab2f4396cc64b4a5676a90d7f07">normalization_type</a>, <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#ac3f834a0c4744ccbc55d3b8bc810fdff">l2_hyst_threshold</a>, <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#a039b8ebcdd462041d3988e6d2c145323">phase_type</a>);</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160;}</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160;</div><div class="line"><a name="l00044"></a><span class="lineno"><a class="line" href="classarm__compute_1_1_h_o_g_info.xhtml#a75215e8ba07a5ec88ee8c902e306e887"> 44</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#a75215e8ba07a5ec88ee8c902e306e887">HOGInfo::init</a>(<span class="keyword">const</span> <a class="code" href="classarm__compute_1_1_size2_d.xhtml">Size2D</a> &amp;cell_size, <span class="keyword">const</span> <a class="code" href="classarm__compute_1_1_size2_d.xhtml">Size2D</a> &amp;block_size, <span class="keyword">const</span> <a class="code" href="classarm__compute_1_1_size2_d.xhtml">Size2D</a> &amp;detection_window_size, <span class="keyword">const</span> <a class="code" href="classarm__compute_1_1_size2_d.xhtml">Size2D</a> &amp;block_stride, <span class="keywordtype">size_t</span> num_bins,</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; <a class="code" href="namespacearm__compute.xhtml#a673665b4587a2956fcbad5f0e9ba89d3">HOGNormType</a> normalization_type, <span class="keywordtype">float</span> l2_hyst_threshold, <a class="code" href="namespacearm__compute.xhtml#af00a42ecad444bbda75cde1b64bd7e72">PhaseType</a> phase_type)</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160;{</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; <a class="code" href="_error_8h.xhtml#a0b0eb3235749a2909dc5a101afe59a1b">ARM_COMPUTE_ERROR_ON_MSG</a>((<a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#ae561964ccc0e0a5750676b9c7dd7cd44">block_size</a>.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02bed8590a9ddf520e58a060059518ec">width</a> % <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#aaefa291ad3cc3e3210c8b8ef2ffde476">cell_size</a>.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02bed8590a9ddf520e58a060059518ec">width</a>), <span class="stringliteral">&quot;The block width must be multiple of cell width&quot;</span>);</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; <a class="code" href="_error_8h.xhtml#a0b0eb3235749a2909dc5a101afe59a1b">ARM_COMPUTE_ERROR_ON_MSG</a>((<a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#ae561964ccc0e0a5750676b9c7dd7cd44">block_size</a>.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02afeaaf8574e7a78d6b466ff2695052">height</a> % <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#aaefa291ad3cc3e3210c8b8ef2ffde476">cell_size</a>.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02afeaaf8574e7a78d6b466ff2695052">height</a>), <span class="stringliteral">&quot;Block height must be multiple of cell height&quot;</span>);</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; <a class="code" href="_error_8h.xhtml#a0b0eb3235749a2909dc5a101afe59a1b">ARM_COMPUTE_ERROR_ON_MSG</a>((<a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#a207391d3ac69d9a0839104f784f888fd">block_stride</a>.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02bed8590a9ddf520e58a060059518ec">width</a> % <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#aaefa291ad3cc3e3210c8b8ef2ffde476">cell_size</a>.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02bed8590a9ddf520e58a060059518ec">width</a>), <span class="stringliteral">&quot;Block stride width must be multiple of cell width&quot;</span>);</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; <a class="code" href="_error_8h.xhtml#a0b0eb3235749a2909dc5a101afe59a1b">ARM_COMPUTE_ERROR_ON_MSG</a>((<a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#a207391d3ac69d9a0839104f784f888fd">block_stride</a>.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02afeaaf8574e7a78d6b466ff2695052">height</a> % <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#aaefa291ad3cc3e3210c8b8ef2ffde476">cell_size</a>.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02afeaaf8574e7a78d6b466ff2695052">height</a>), <span class="stringliteral">&quot;Block stride height must be multiple of cell height&quot;</span>);</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; <a class="code" href="_error_8h.xhtml#a0b0eb3235749a2909dc5a101afe59a1b">ARM_COMPUTE_ERROR_ON_MSG</a>(((<a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#a7cbda2c789c461237f0c6eaee8f8cd2a">detection_window_size</a>.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02bed8590a9ddf520e58a060059518ec">width</a> - <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#ae561964ccc0e0a5750676b9c7dd7cd44">block_size</a>.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02bed8590a9ddf520e58a060059518ec">width</a>) % <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#a207391d3ac69d9a0839104f784f888fd">block_stride</a>.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02bed8590a9ddf520e58a060059518ec">width</a>), <span class="stringliteral">&quot;Window width must be multiple of block width and block stride width&quot;</span>);</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; <a class="code" href="_error_8h.xhtml#a0b0eb3235749a2909dc5a101afe59a1b">ARM_COMPUTE_ERROR_ON_MSG</a>(((<a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#a7cbda2c789c461237f0c6eaee8f8cd2a">detection_window_size</a>.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02afeaaf8574e7a78d6b466ff2695052">height</a> - <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#ae561964ccc0e0a5750676b9c7dd7cd44">block_size</a>.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02afeaaf8574e7a78d6b466ff2695052">height</a>) % <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#a207391d3ac69d9a0839104f784f888fd">block_stride</a>.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02afeaaf8574e7a78d6b466ff2695052">height</a>), <span class="stringliteral">&quot;Window height must be multiple of block height and block stride height&quot;</span>);</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160;</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; _cell_size = <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#aaefa291ad3cc3e3210c8b8ef2ffde476">cell_size</a>;</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; _block_size = <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#ae561964ccc0e0a5750676b9c7dd7cd44">block_size</a>;</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; _detection_window_size = <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#a7cbda2c789c461237f0c6eaee8f8cd2a">detection_window_size</a>;</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; _block_stride = <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#a207391d3ac69d9a0839104f784f888fd">block_stride</a>;</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; _num_bins = <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#ad96530ddba514601d376f991b568b346">num_bins</a>;</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; _normalization_type = <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#a5a4a2ab2f4396cc64b4a5676a90d7f07">normalization_type</a>;</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; _l2_hyst_threshold = <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#ac3f834a0c4744ccbc55d3b8bc810fdff">l2_hyst_threshold</a>;</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; _phase_type = <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#a039b8ebcdd462041d3988e6d2c145323">phase_type</a>;</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160;</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; <span class="comment">// Compute descriptor size. +1 takes into account of the bias</span></div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; _descriptor_size = <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#a79b522bd4aa0d5533649e60ef7f5f42f">num_cells_per_block</a>().<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a75026dc1fa3840404ae4553010efcd52">area</a>() * <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#a576ef6e002aae702e9c619a1afd31ddb">num_block_positions_per_image</a>(_detection_window_size).<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a75026dc1fa3840404ae4553010efcd52">area</a>() * _num_bins + 1;</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160;}</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160;</div><div class="line"><a name="l00067"></a><span class="lineno"><a class="line" href="classarm__compute_1_1_h_o_g_info.xhtml#a79b522bd4aa0d5533649e60ef7f5f42f"> 67</a></span>&#160;<a class="code" href="classarm__compute_1_1_size2_d.xhtml">Size2D</a> <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#a79b522bd4aa0d5533649e60ef7f5f42f">HOGInfo::num_cells_per_block</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; <a class="code" href="_error_8h.xhtml#a54a6080c9f4df1f908e57a9bbb46f5da">ARM_COMPUTE_ERROR_ON</a>(_cell_size.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02bed8590a9ddf520e58a060059518ec">width</a> == 0 || _cell_size.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02afeaaf8574e7a78d6b466ff2695052">height</a> == 0);</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160;</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classarm__compute_1_1_size2_d.xhtml">Size2D</a>{ _block_size.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02bed8590a9ddf520e58a060059518ec">width</a> / _cell_size.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02bed8590a9ddf520e58a060059518ec">width</a>,</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; _block_size.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02afeaaf8574e7a78d6b466ff2695052">height</a> / _cell_size.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02afeaaf8574e7a78d6b466ff2695052">height</a> };</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160;}</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160;</div><div class="line"><a name="l00075"></a><span class="lineno"><a class="line" href="classarm__compute_1_1_h_o_g_info.xhtml#a3d18e8be8055827aa09839f6972ff271"> 75</a></span>&#160;<a class="code" href="classarm__compute_1_1_size2_d.xhtml">Size2D</a> <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#a3d18e8be8055827aa09839f6972ff271">HOGInfo::num_cells_per_block_stride</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; <a class="code" href="_error_8h.xhtml#a54a6080c9f4df1f908e57a9bbb46f5da">ARM_COMPUTE_ERROR_ON</a>(_cell_size.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02bed8590a9ddf520e58a060059518ec">width</a> == 0 || _cell_size.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02afeaaf8574e7a78d6b466ff2695052">height</a> == 0);</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160;</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classarm__compute_1_1_size2_d.xhtml">Size2D</a>{ _block_stride.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02bed8590a9ddf520e58a060059518ec">width</a> / _cell_size.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02bed8590a9ddf520e58a060059518ec">width</a>,</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; _block_stride.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02afeaaf8574e7a78d6b466ff2695052">height</a> / _cell_size.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02afeaaf8574e7a78d6b466ff2695052">height</a> };</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160;}</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160;</div><div class="line"><a name="l00083"></a><span class="lineno"><a class="line" href="classarm__compute_1_1_h_o_g_info.xhtml#a576ef6e002aae702e9c619a1afd31ddb"> 83</a></span>&#160;<a class="code" href="classarm__compute_1_1_size2_d.xhtml">Size2D</a> <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#a576ef6e002aae702e9c619a1afd31ddb">HOGInfo::num_block_positions_per_image</a>(<span class="keyword">const</span> <a class="code" href="classarm__compute_1_1_size2_d.xhtml">Size2D</a> &amp;image_size)<span class="keyword"> const</span></div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; <a class="code" href="_error_8h.xhtml#a54a6080c9f4df1f908e57a9bbb46f5da">ARM_COMPUTE_ERROR_ON</a>(_block_stride.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02bed8590a9ddf520e58a060059518ec">width</a> == 0 || _block_stride.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02afeaaf8574e7a78d6b466ff2695052">height</a> == 0);</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160;</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classarm__compute_1_1_size2_d.xhtml">Size2D</a>{ ((image_size.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02bed8590a9ddf520e58a060059518ec">width</a> - _block_size.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02bed8590a9ddf520e58a060059518ec">width</a>) / _block_stride.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02bed8590a9ddf520e58a060059518ec">width</a>) + 1,</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; ((image_size.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02afeaaf8574e7a78d6b466ff2695052">height</a> - _block_size.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02afeaaf8574e7a78d6b466ff2695052">height</a>) / _block_stride.<a class="code" href="classarm__compute_1_1_size2_d.xhtml#a02afeaaf8574e7a78d6b466ff2695052">height</a>) + 1 };</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160;}</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160;</div><div class="line"><a name="l00091"></a><span class="lineno"><a class="line" href="classarm__compute_1_1_h_o_g_info.xhtml#aaefa291ad3cc3e3210c8b8ef2ffde476"> 91</a></span>&#160;<span class="keyword">const</span> <a class="code" href="classarm__compute_1_1_size2_d.xhtml">Size2D</a> &amp;<a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#aaefa291ad3cc3e3210c8b8ef2ffde476">HOGInfo::cell_size</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; <span class="keywordflow">return</span> _cell_size;</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160;}</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160;</div><div class="line"><a name="l00096"></a><span class="lineno"><a class="line" href="classarm__compute_1_1_h_o_g_info.xhtml#ae561964ccc0e0a5750676b9c7dd7cd44"> 96</a></span>&#160;<span class="keyword">const</span> <a class="code" href="classarm__compute_1_1_size2_d.xhtml">Size2D</a> &amp;<a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#ae561964ccc0e0a5750676b9c7dd7cd44">HOGInfo::block_size</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; <span class="keywordflow">return</span> _block_size;</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160;}</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160;</div><div class="line"><a name="l00101"></a><span class="lineno"><a class="line" href="classarm__compute_1_1_h_o_g_info.xhtml#a7cbda2c789c461237f0c6eaee8f8cd2a"> 101</a></span>&#160;<span class="keyword">const</span> <a class="code" href="classarm__compute_1_1_size2_d.xhtml">Size2D</a> &amp;<a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#a7cbda2c789c461237f0c6eaee8f8cd2a">HOGInfo::detection_window_size</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; <span class="keywordflow">return</span> _detection_window_size;</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160;}</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160;</div><div class="line"><a name="l00106"></a><span class="lineno"><a class="line" href="classarm__compute_1_1_h_o_g_info.xhtml#a207391d3ac69d9a0839104f784f888fd"> 106</a></span>&#160;<span class="keyword">const</span> <a class="code" href="classarm__compute_1_1_size2_d.xhtml">Size2D</a> &amp;<a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#a207391d3ac69d9a0839104f784f888fd">HOGInfo::block_stride</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; <span class="keywordflow">return</span> _block_stride;</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160;}</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160;</div><div class="line"><a name="l00111"></a><span class="lineno"><a class="line" href="classarm__compute_1_1_h_o_g_info.xhtml#ad96530ddba514601d376f991b568b346"> 111</a></span>&#160;<span class="keywordtype">size_t</span> <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#ad96530ddba514601d376f991b568b346">HOGInfo::num_bins</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; <span class="keywordflow">return</span> _num_bins;</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160;}</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160;</div><div class="line"><a name="l00116"></a><span class="lineno"><a class="line" href="classarm__compute_1_1_h_o_g_info.xhtml#a5a4a2ab2f4396cc64b4a5676a90d7f07"> 116</a></span>&#160;<a class="code" href="namespacearm__compute.xhtml#a673665b4587a2956fcbad5f0e9ba89d3">HOGNormType</a> <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#a5a4a2ab2f4396cc64b4a5676a90d7f07">HOGInfo::normalization_type</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; <span class="keywordflow">return</span> _normalization_type;</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160;}</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160;</div><div class="line"><a name="l00121"></a><span class="lineno"><a class="line" href="classarm__compute_1_1_h_o_g_info.xhtml#ac3f834a0c4744ccbc55d3b8bc810fdff"> 121</a></span>&#160;<span class="keywordtype">float</span> <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#ac3f834a0c4744ccbc55d3b8bc810fdff">HOGInfo::l2_hyst_threshold</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; <span class="keywordflow">return</span> _l2_hyst_threshold;</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160;}</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160;</div><div class="line"><a name="l00126"></a><span class="lineno"><a class="line" href="classarm__compute_1_1_h_o_g_info.xhtml#a039b8ebcdd462041d3988e6d2c145323"> 126</a></span>&#160;<a class="code" href="namespacearm__compute.xhtml#af00a42ecad444bbda75cde1b64bd7e72">PhaseType</a> <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#a039b8ebcdd462041d3988e6d2c145323">HOGInfo::phase_type</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; <span class="keywordflow">return</span> _phase_type;</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160;}</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160;</div><div class="line"><a name="l00131"></a><span class="lineno"><a class="line" href="classarm__compute_1_1_h_o_g_info.xhtml#a2a347c64540c1d48a579f830ddff622f"> 131</a></span>&#160;<span class="keywordtype">size_t</span> <a class="code" href="classarm__compute_1_1_h_o_g_info.xhtml#a2a347c64540c1d48a579f830ddff622f">HOGInfo::descriptor_size</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; <span class="keywordflow">return</span> _descriptor_size;</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160;}</div><div class="ttc" id="namespacearm__compute_xhtml_a673665b4587a2956fcbad5f0e9ba89d3ac9e68c0594494ec85805b225a7acb9c2"><div class="ttname"><a href="namespacearm__compute.xhtml#a673665b4587a2956fcbad5f0e9ba89d3ac9e68c0594494ec85805b225a7acb9c2">arm_compute::HOGNormType::L2HYS_NORM</a></div><div class="ttdoc">L2-norm followed by clipping.</div></div>
<div class="ttc" id="classarm__compute_1_1_h_o_g_info_xhtml_ad96530ddba514601d376f991b568b346"><div class="ttname"><a href="classarm__compute_1_1_h_o_g_info.xhtml#ad96530ddba514601d376f991b568b346">arm_compute::HOGInfo::num_bins</a></div><div class="ttdeci">size_t num_bins() const</div><div class="ttdoc">The number of histogram bins for each cell.</div><div class="ttdef"><b>Definition:</b> <a href="_h_o_g_info_8cpp_source.xhtml#l00111">HOGInfo.cpp:111</a></div></div>
<div class="ttc" id="classarm__compute_1_1_h_o_g_info_xhtml_a7cbda2c789c461237f0c6eaee8f8cd2a"><div class="ttname"><a href="classarm__compute_1_1_h_o_g_info.xhtml#a7cbda2c789c461237f0c6eaee8f8cd2a">arm_compute::HOGInfo::detection_window_size</a></div><div class="ttdeci">const Size2D &amp; detection_window_size() const</div><div class="ttdoc">The detection window size in pixels.</div><div class="ttdef"><b>Definition:</b> <a href="_h_o_g_info_8cpp_source.xhtml#l00101">HOGInfo.cpp:101</a></div></div>
<div class="ttc" id="namespacearm__compute_xhtml_af00a42ecad444bbda75cde1b64bd7e72aaf36b47f395cd01f48b8fc1013665054"><div class="ttname"><a href="namespacearm__compute.xhtml#af00a42ecad444bbda75cde1b64bd7e72aaf36b47f395cd01f48b8fc1013665054">arm_compute::PhaseType::UNSIGNED</a></div><div class="ttdoc">Angle range: [0, 180].</div></div>
<div class="ttc" id="classarm__compute_1_1_h_o_g_info_xhtml_aaefa291ad3cc3e3210c8b8ef2ffde476"><div class="ttname"><a href="classarm__compute_1_1_h_o_g_info.xhtml#aaefa291ad3cc3e3210c8b8ef2ffde476">arm_compute::HOGInfo::cell_size</a></div><div class="ttdeci">const Size2D &amp; cell_size() const</div><div class="ttdoc">The cell size in pixels.</div><div class="ttdef"><b>Definition:</b> <a href="_h_o_g_info_8cpp_source.xhtml#l00091">HOGInfo.cpp:91</a></div></div>
<div class="ttc" id="namespacearm__compute_xhtml_af00a42ecad444bbda75cde1b64bd7e72"><div class="ttname"><a href="namespacearm__compute.xhtml#af00a42ecad444bbda75cde1b64bd7e72">arm_compute::PhaseType</a></div><div class="ttdeci">PhaseType</div><div class="ttdoc">Phase calculation type.</div><div class="ttdef"><b>Definition:</b> <a href="arm__compute_2core_2_types_8h_source.xhtml#l00406">Types.h:406</a></div></div>
<div class="ttc" id="classarm__compute_1_1_h_o_g_info_xhtml_a3d18e8be8055827aa09839f6972ff271"><div class="ttname"><a href="classarm__compute_1_1_h_o_g_info.xhtml#a3d18e8be8055827aa09839f6972ff271">arm_compute::HOGInfo::num_cells_per_block_stride</a></div><div class="ttdeci">Size2D num_cells_per_block_stride() const</div><div class="ttdoc">Calculates the number of cells per block stride.</div><div class="ttdef"><b>Definition:</b> <a href="_h_o_g_info_8cpp_source.xhtml#l00075">HOGInfo.cpp:75</a></div></div>
<div class="ttc" id="classarm__compute_1_1_h_o_g_info_xhtml"><div class="ttname"><a href="classarm__compute_1_1_h_o_g_info.xhtml">arm_compute::HOGInfo</a></div><div class="ttdoc">Store the HOG's metadata.</div><div class="ttdef"><b>Definition:</b> <a href="_h_o_g_info_8h_source.xhtml#l00035">HOGInfo.h:35</a></div></div>
<div class="ttc" id="_error_8h_xhtml_a54a6080c9f4df1f908e57a9bbb46f5da"><div class="ttname"><a href="_error_8h.xhtml#a54a6080c9f4df1f908e57a9bbb46f5da">ARM_COMPUTE_ERROR_ON</a></div><div class="ttdeci">#define ARM_COMPUTE_ERROR_ON(cond)</div><div class="ttdoc">If the condition is true then an error message is printed and an exception thrown.</div><div class="ttdef"><b>Definition:</b> <a href="_error_8h_source.xhtml#l00466">Error.h:466</a></div></div>
<div class="ttc" id="classarm__compute_1_1_h_o_g_info_xhtml_a039b8ebcdd462041d3988e6d2c145323"><div class="ttname"><a href="classarm__compute_1_1_h_o_g_info.xhtml#a039b8ebcdd462041d3988e6d2c145323">arm_compute::HOGInfo::phase_type</a></div><div class="ttdeci">PhaseType phase_type() const</div><div class="ttdoc">The type of PhaseType.</div><div class="ttdef"><b>Definition:</b> <a href="_h_o_g_info_8cpp_source.xhtml#l00126">HOGInfo.cpp:126</a></div></div>
<div class="ttc" id="classarm__compute_1_1_h_o_g_info_xhtml_a207391d3ac69d9a0839104f784f888fd"><div class="ttname"><a href="classarm__compute_1_1_h_o_g_info.xhtml#a207391d3ac69d9a0839104f784f888fd">arm_compute::HOGInfo::block_stride</a></div><div class="ttdeci">const Size2D &amp; block_stride() const</div><div class="ttdoc">The block stride in pixels.</div><div class="ttdef"><b>Definition:</b> <a href="_h_o_g_info_8cpp_source.xhtml#l00106">HOGInfo.cpp:106</a></div></div>
<div class="ttc" id="classarm__compute_1_1_h_o_g_info_xhtml_a5a4a2ab2f4396cc64b4a5676a90d7f07"><div class="ttname"><a href="classarm__compute_1_1_h_o_g_info.xhtml#a5a4a2ab2f4396cc64b4a5676a90d7f07">arm_compute::HOGInfo::normalization_type</a></div><div class="ttdeci">HOGNormType normalization_type() const</div><div class="ttdoc">The normalization type.</div><div class="ttdef"><b>Definition:</b> <a href="_h_o_g_info_8cpp_source.xhtml#l00116">HOGInfo.cpp:116</a></div></div>
<div class="ttc" id="namespacearm__compute_xhtml"><div class="ttname"><a href="namespacearm__compute.xhtml">arm_compute</a></div><div class="ttdoc">Copyright (c) 2017-2020 ARM Limited.</div><div class="ttdef"><b>Definition:</b> <a href="00__introduction_8dox_source.xhtml#l00024">00_introduction.dox:24</a></div></div>
<div class="ttc" id="classarm__compute_1_1_size2_d_xhtml_a02afeaaf8574e7a78d6b466ff2695052"><div class="ttname"><a href="classarm__compute_1_1_size2_d.xhtml#a02afeaaf8574e7a78d6b466ff2695052">arm_compute::Size2D::height</a></div><div class="ttdeci">size_t height</div><div class="ttdoc">Height of the image region or rectangle.</div><div class="ttdef"><b>Definition:</b> <a href="_size2_d_8h_source.xhtml#l00093">Size2D.h:93</a></div></div>
<div class="ttc" id="classarm__compute_1_1_h_o_g_info_xhtml_aed28257d62b9129062bfd61600531648"><div class="ttname"><a href="classarm__compute_1_1_h_o_g_info.xhtml#aed28257d62b9129062bfd61600531648">arm_compute::HOGInfo::HOGInfo</a></div><div class="ttdeci">HOGInfo()</div><div class="ttdoc">Default constructor.</div><div class="ttdef"><b>Definition:</b> <a href="_h_o_g_info_8cpp_source.xhtml#l00031">HOGInfo.cpp:31</a></div></div>
<div class="ttc" id="classarm__compute_1_1_h_o_g_info_xhtml_a79b522bd4aa0d5533649e60ef7f5f42f"><div class="ttname"><a href="classarm__compute_1_1_h_o_g_info.xhtml#a79b522bd4aa0d5533649e60ef7f5f42f">arm_compute::HOGInfo::num_cells_per_block</a></div><div class="ttdeci">Size2D num_cells_per_block() const</div><div class="ttdoc">Calculates the number of cells for each block.</div><div class="ttdef"><b>Definition:</b> <a href="_h_o_g_info_8cpp_source.xhtml#l00067">HOGInfo.cpp:67</a></div></div>
<div class="ttc" id="_error_8h_xhtml_a0b0eb3235749a2909dc5a101afe59a1b"><div class="ttname"><a href="_error_8h.xhtml#a0b0eb3235749a2909dc5a101afe59a1b">ARM_COMPUTE_ERROR_ON_MSG</a></div><div class="ttdeci">#define ARM_COMPUTE_ERROR_ON_MSG(cond, msg)</div><div class="ttdef"><b>Definition:</b> <a href="_error_8h_source.xhtml#l00456">Error.h:456</a></div></div>
<div class="ttc" id="classarm__compute_1_1_h_o_g_info_xhtml_ae561964ccc0e0a5750676b9c7dd7cd44"><div class="ttname"><a href="classarm__compute_1_1_h_o_g_info.xhtml#ae561964ccc0e0a5750676b9c7dd7cd44">arm_compute::HOGInfo::block_size</a></div><div class="ttdeci">const Size2D &amp; block_size() const</div><div class="ttdoc">The block size in pixels.</div><div class="ttdef"><b>Definition:</b> <a href="_h_o_g_info_8cpp_source.xhtml#l00096">HOGInfo.cpp:96</a></div></div>
<div class="ttc" id="classarm__compute_1_1_h_o_g_info_xhtml_ac3f834a0c4744ccbc55d3b8bc810fdff"><div class="ttname"><a href="classarm__compute_1_1_h_o_g_info.xhtml#ac3f834a0c4744ccbc55d3b8bc810fdff">arm_compute::HOGInfo::l2_hyst_threshold</a></div><div class="ttdeci">float l2_hyst_threshold() const</div><div class="ttdoc">Threshold used for L2HYS_NORM normalization type.</div><div class="ttdef"><b>Definition:</b> <a href="_h_o_g_info_8cpp_source.xhtml#l00121">HOGInfo.cpp:121</a></div></div>
<div class="ttc" id="_error_8h_xhtml"><div class="ttname"><a href="_error_8h.xhtml">Error.h</a></div></div>
<div class="ttc" id="classarm__compute_1_1_size2_d_xhtml_a02bed8590a9ddf520e58a060059518ec"><div class="ttname"><a href="classarm__compute_1_1_size2_d.xhtml#a02bed8590a9ddf520e58a060059518ec">arm_compute::Size2D::width</a></div><div class="ttdeci">size_t width</div><div class="ttdoc">Width of the image region or rectangle.</div><div class="ttdef"><b>Definition:</b> <a href="_size2_d_8h_source.xhtml#l00092">Size2D.h:92</a></div></div>
<div class="ttc" id="namespacearm__compute_xhtml_a673665b4587a2956fcbad5f0e9ba89d3"><div class="ttname"><a href="namespacearm__compute.xhtml#a673665b4587a2956fcbad5f0e9ba89d3">arm_compute::HOGNormType</a></div><div class="ttdeci">HOGNormType</div><div class="ttdoc">Normalization type for Histogram of Oriented Gradients (HOG)</div><div class="ttdef"><b>Definition:</b> <a href="arm__compute_2core_2_types_8h_source.xhtml#l00541">Types.h:541</a></div></div>
<div class="ttc" id="classarm__compute_1_1_h_o_g_info_xhtml_a576ef6e002aae702e9c619a1afd31ddb"><div class="ttname"><a href="classarm__compute_1_1_h_o_g_info.xhtml#a576ef6e002aae702e9c619a1afd31ddb">arm_compute::HOGInfo::num_block_positions_per_image</a></div><div class="ttdeci">Size2D num_block_positions_per_image(const Size2D &amp;image_size) const</div><div class="ttdoc">Calculates the number of block positions for the given image size.</div><div class="ttdef"><b>Definition:</b> <a href="_h_o_g_info_8cpp_source.xhtml#l00083">HOGInfo.cpp:83</a></div></div>
<div class="ttc" id="classarm__compute_1_1_size2_d_xhtml"><div class="ttname"><a href="classarm__compute_1_1_size2_d.xhtml">arm_compute::Size2D</a></div><div class="ttdoc">Class for specifying the size of an image or rectangle.</div><div class="ttdef"><b>Definition:</b> <a href="_size2_d_8h_source.xhtml#l00034">Size2D.h:34</a></div></div>
<div class="ttc" id="_h_o_g_info_8h_xhtml"><div class="ttname"><a href="_h_o_g_info_8h.xhtml">HOGInfo.h</a></div></div>
<div class="ttc" id="classarm__compute_1_1_h_o_g_info_xhtml_a2a347c64540c1d48a579f830ddff622f"><div class="ttname"><a href="classarm__compute_1_1_h_o_g_info.xhtml#a2a347c64540c1d48a579f830ddff622f">arm_compute::HOGInfo::descriptor_size</a></div><div class="ttdeci">size_t descriptor_size() const</div><div class="ttdoc">The size of HOG descriptor.</div><div class="ttdef"><b>Definition:</b> <a href="_h_o_g_info_8cpp_source.xhtml#l00131">HOGInfo.cpp:131</a></div></div>
<div class="ttc" id="classarm__compute_1_1_h_o_g_info_xhtml_a75215e8ba07a5ec88ee8c902e306e887"><div class="ttname"><a href="classarm__compute_1_1_h_o_g_info.xhtml#a75215e8ba07a5ec88ee8c902e306e887">arm_compute::HOGInfo::init</a></div><div class="ttdeci">void init(const Size2D &amp;cell_size, const Size2D &amp;block_size, const Size2D &amp;detection_window_size, const Size2D &amp;block_stride, size_t num_bins, HOGNormType normalization_type=HOGNormType::L2HYS_NORM, float l2_hyst_threshold=0.2f, PhaseType phase_type=PhaseType::UNSIGNED)</div><div class="ttdoc">Initialize the metadata structure with the given parameters.</div><div class="ttdef"><b>Definition:</b> <a href="_h_o_g_info_8cpp_source.xhtml#l00044">HOGInfo.cpp:44</a></div></div>
<div class="ttc" id="_validate_8h_xhtml"><div class="ttname"><a href="_validate_8h.xhtml">Validate.h</a></div></div>
<div class="ttc" id="classarm__compute_1_1_size2_d_xhtml_a75026dc1fa3840404ae4553010efcd52"><div class="ttname"><a href="classarm__compute_1_1_size2_d.xhtml#a75026dc1fa3840404ae4553010efcd52">arm_compute::Size2D::area</a></div><div class="ttdeci">size_t area() const</div><div class="ttdoc">The area of the image or rectangle calculated as (width * height)</div><div class="ttdef"><b>Definition:</b> <a href="_size2_d_8h_source.xhtml#l00053">Size2D.h:53</a></div></div>
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