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| <div class="title">non_linear_filter_helpers.h</div> </div> |
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| <a href="non__linear__filter__helpers_8h.xhtml">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (c) 2017 ARM Limited.</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * SPDX-License-Identifier: MIT</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <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> <span class="comment"> * of this software and associated documentation files (the "Software"), to</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <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> <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> <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> <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> <span class="comment"> *</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <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> <span class="comment"> * copies or substantial portions of the Software.</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> *</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <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> <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> <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> <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> <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> <span class="comment"> * SOFTWARE.</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> */</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div><div class="line"><a name="l00030"></a><span class="lineno"><a class="line" href="non__linear__filter__helpers_8h.xhtml#ac226bc1ed04fd7d4865263484ed22a47"> 30</a></span> <span class="preprocessor">#define SORT(a, b) \</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor"> { \</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor"> uchar8 min_val = min(a, b); \</span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor"> uchar8 max_val = max(a, b); \</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor"> a = min_val; \</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor"> b = max_val; \</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor"> }</span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment">// Sorting networks below were generated using http://pages.ripco.net/~jgamble/nw.html</span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div><div class="line"><a name="l00050"></a><span class="lineno"><a class="line" href="non__linear__filter__helpers_8h.xhtml#a7b5c174de888c3cfa7c08c16682fd770"> 50</a></span> <span class="keyword">inline</span> uchar8 <a class="code" href="non__linear__filter__helpers_8h.xhtml#a7b5c174de888c3cfa7c08c16682fd770">sort5</a>(uchar8 p0, uchar8 p1, uchar8 p2, uchar8 p3, uchar8 p4)</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> {</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <a class="code" href="non__linear__filter__helpers_8h.xhtml#ac226bc1ed04fd7d4865263484ed22a47">SORT</a>(p0, p1);</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <a class="code" href="non__linear__filter__helpers_8h.xhtml#ac226bc1ed04fd7d4865263484ed22a47">SORT</a>(p2, p3);</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <a class="code" href="non__linear__filter__helpers_8h.xhtml#ac226bc1ed04fd7d4865263484ed22a47">SORT</a>(p0, p2);</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <a class="code" href="non__linear__filter__helpers_8h.xhtml#ac226bc1ed04fd7d4865263484ed22a47">SORT</a>(p1, p3);</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <a class="code" href="non__linear__filter__helpers_8h.xhtml#ac226bc1ed04fd7d4865263484ed22a47">SORT</a>(p1, p2);</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <a class="code" href="non__linear__filter__helpers_8h.xhtml#ac226bc1ed04fd7d4865263484ed22a47">SORT</a>(p0, p4);</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <a class="code" href="non__linear__filter__helpers_8h.xhtml#ac226bc1ed04fd7d4865263484ed22a47">SORT</a>(p1, p4);</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <a class="code" href="non__linear__filter__helpers_8h.xhtml#ac226bc1ed04fd7d4865263484ed22a47">SORT</a>(p2, p4);</div><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>  <span class="keywordflow">return</span> p2;</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> }</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </div><div class="line"><a name="l00078"></a><span class="lineno"><a class="line" href="non__linear__filter__helpers_8h.xhtml#a0960df49e39a9499677066c32600c17f"> 78</a></span> <span class="keyword">inline</span> uchar8 <a class="code" href="non__linear__filter__helpers_8h.xhtml#a0960df49e39a9499677066c32600c17f">sort9</a>(uchar8 p0, uchar8 p1, uchar8 p2, uchar8 p3, uchar8 p4, uchar8 p5, uchar8 p6, uchar8 p7, uchar8 p8)</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>  <a class="code" href="non__linear__filter__helpers_8h.xhtml#ac226bc1ed04fd7d4865263484ed22a47">SORT</a>(p1, p2);</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <a class="code" href="non__linear__filter__helpers_8h.xhtml#ac226bc1ed04fd7d4865263484ed22a47">SORT</a>(p4, p5);</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <a class="code" href="non__linear__filter__helpers_8h.xhtml#ac226bc1ed04fd7d4865263484ed22a47">SORT</a>(p7, p8);</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <a class="code" href="non__linear__filter__helpers_8h.xhtml#ac226bc1ed04fd7d4865263484ed22a47">SORT</a>(p0, p1);</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <a class="code" href="non__linear__filter__helpers_8h.xhtml#ac226bc1ed04fd7d4865263484ed22a47">SORT</a>(p3, p4);</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <a class="code" href="non__linear__filter__helpers_8h.xhtml#ac226bc1ed04fd7d4865263484ed22a47">SORT</a>(p6, p7);</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <a class="code" href="non__linear__filter__helpers_8h.xhtml#ac226bc1ed04fd7d4865263484ed22a47">SORT</a>(p1, p2);</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <a class="code" href="non__linear__filter__helpers_8h.xhtml#ac226bc1ed04fd7d4865263484ed22a47">SORT</a>(p4, p5);</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <a class="code" href="non__linear__filter__helpers_8h.xhtml#ac226bc1ed04fd7d4865263484ed22a47">SORT</a>(p7, p8);</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <a class="code" href="non__linear__filter__helpers_8h.xhtml#ac226bc1ed04fd7d4865263484ed22a47">SORT</a>(p0, p3);</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <a class="code" href="non__linear__filter__helpers_8h.xhtml#ac226bc1ed04fd7d4865263484ed22a47">SORT</a>(p5, p8);</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <a class="code" href="non__linear__filter__helpers_8h.xhtml#ac226bc1ed04fd7d4865263484ed22a47">SORT</a>(p4, p7);</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <a class="code" href="non__linear__filter__helpers_8h.xhtml#ac226bc1ed04fd7d4865263484ed22a47">SORT</a>(p3, p6);</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <a class="code" href="non__linear__filter__helpers_8h.xhtml#ac226bc1ed04fd7d4865263484ed22a47">SORT</a>(p1, p4);</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <a class="code" href="non__linear__filter__helpers_8h.xhtml#ac226bc1ed04fd7d4865263484ed22a47">SORT</a>(p2, p5);</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <a class="code" href="non__linear__filter__helpers_8h.xhtml#ac226bc1ed04fd7d4865263484ed22a47">SORT</a>(p4, p7);</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <a class="code" href="non__linear__filter__helpers_8h.xhtml#ac226bc1ed04fd7d4865263484ed22a47">SORT</a>(p4, p2);</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <a class="code" href="non__linear__filter__helpers_8h.xhtml#ac226bc1ed04fd7d4865263484ed22a47">SORT</a>(p6, p4);</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <a class="code" href="non__linear__filter__helpers_8h.xhtml#ac226bc1ed04fd7d4865263484ed22a47">SORT</a>(p4, p2);</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>  <span class="keywordflow">return</span> p4;</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> }</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span> </div><div class="line"><a name="l00109"></a><span class="lineno"><a class="line" href="non__linear__filter__helpers_8h.xhtml#ae3e09114bb887de4e20122eed42671a1"> 109</a></span> <span class="keyword">inline</span> uchar8 <a class="code" href="non__linear__filter__helpers_8h.xhtml#ae3e09114bb887de4e20122eed42671a1">row_reduce_min_3</a>(uchar16 val)</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> {</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">return</span> min(val.s01234567, min(val.s12345678, val.s23456789));</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span> }</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span> </div><div class="line"><a name="l00120"></a><span class="lineno"><a class="line" href="non__linear__filter__helpers_8h.xhtml#a3138dafa8474a59f73dd837073f18ed7"> 120</a></span> <span class="keyword">inline</span> uchar8 <a class="code" href="non__linear__filter__helpers_8h.xhtml#a3138dafa8474a59f73dd837073f18ed7">row_reduce_max_3</a>(uchar16 val)</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span> {</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordflow">return</span> max(val.s01234567, max(val.s12345678, val.s23456789));</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> </div><div class="line"><a name="l00131"></a><span class="lineno"><a class="line" href="non__linear__filter__helpers_8h.xhtml#aa9d1bdcaf911a5b861c2082181e6a716"> 131</a></span> <span class="keyword">inline</span> uchar8 <a class="code" href="non__linear__filter__helpers_8h.xhtml#aa9d1bdcaf911a5b861c2082181e6a716">row_reduce_min_5</a>(uchar16 val)</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span> {</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordflow">return</span> min(val.s01234567, min(min(val.s12345678, val.s23456789), min(val.s3456789A, val.s456789AB)));</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> }</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span> </div><div class="line"><a name="l00142"></a><span class="lineno"><a class="line" href="non__linear__filter__helpers_8h.xhtml#a310f21b7cf0409431ddf246c4a98e52e"> 142</a></span> <span class="keyword">inline</span> uchar8 <a class="code" href="non__linear__filter__helpers_8h.xhtml#a310f21b7cf0409431ddf246c4a98e52e">row_reduce_max_5</a>(uchar16 val)</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="keywordflow">return</span> max(val.s01234567, max(max(val.s12345678, val.s23456789), max(val.s3456789A, val.s456789AB)));</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> }</div><div class="ttc" id="non__linear__filter__helpers_8h_xhtml_aa9d1bdcaf911a5b861c2082181e6a716"><div class="ttname"><a href="non__linear__filter__helpers_8h.xhtml#aa9d1bdcaf911a5b861c2082181e6a716">row_reduce_min_5</a></div><div class="ttdeci">uchar8 row_reduce_min_5(uchar16 val)</div><div class="ttdoc">Calculate the minimum of a sliding window of size 5.</div><div class="ttdef"><b>Definition:</b> <a href="non__linear__filter__helpers_8h_source.xhtml#l00131">non_linear_filter_helpers.h:131</a></div></div> |
| <div class="ttc" id="non__linear__filter__helpers_8h_xhtml_ac226bc1ed04fd7d4865263484ed22a47"><div class="ttname"><a href="non__linear__filter__helpers_8h.xhtml#ac226bc1ed04fd7d4865263484ed22a47">SORT</a></div><div class="ttdeci">#define SORT(a, b)</div><div class="ttdoc">Sorts element-wise two vectors.</div><div class="ttdef"><b>Definition:</b> <a href="non__linear__filter__helpers_8h_source.xhtml#l00030">non_linear_filter_helpers.h:30</a></div></div> |
| <div class="ttc" id="non__linear__filter__helpers_8h_xhtml_a310f21b7cf0409431ddf246c4a98e52e"><div class="ttname"><a href="non__linear__filter__helpers_8h.xhtml#a310f21b7cf0409431ddf246c4a98e52e">row_reduce_max_5</a></div><div class="ttdeci">uchar8 row_reduce_max_5(uchar16 val)</div><div class="ttdoc">Calculate the maximum of a sliding window of size 5.</div><div class="ttdef"><b>Definition:</b> <a href="non__linear__filter__helpers_8h_source.xhtml#l00142">non_linear_filter_helpers.h:142</a></div></div> |
| <div class="ttc" id="non__linear__filter__helpers_8h_xhtml_a7b5c174de888c3cfa7c08c16682fd770"><div class="ttname"><a href="non__linear__filter__helpers_8h.xhtml#a7b5c174de888c3cfa7c08c16682fd770">sort5</a></div><div class="ttdeci">uchar8 sort5(uchar8 p0, uchar8 p1, uchar8 p2, uchar8 p3, uchar8 p4)</div><div class="ttdoc">Sorting network to sort 5 vectors of 8 elements and return their median.</div><div class="ttdef"><b>Definition:</b> <a href="non__linear__filter__helpers_8h_source.xhtml#l00050">non_linear_filter_helpers.h:50</a></div></div> |
| <div class="ttc" id="non__linear__filter__helpers_8h_xhtml_a3138dafa8474a59f73dd837073f18ed7"><div class="ttname"><a href="non__linear__filter__helpers_8h.xhtml#a3138dafa8474a59f73dd837073f18ed7">row_reduce_max_3</a></div><div class="ttdeci">uchar8 row_reduce_max_3(uchar16 val)</div><div class="ttdoc">Calculate the maximum of a sliding window of size 3.</div><div class="ttdef"><b>Definition:</b> <a href="non__linear__filter__helpers_8h_source.xhtml#l00120">non_linear_filter_helpers.h:120</a></div></div> |
| <div class="ttc" id="non__linear__filter__helpers_8h_xhtml_a0960df49e39a9499677066c32600c17f"><div class="ttname"><a href="non__linear__filter__helpers_8h.xhtml#a0960df49e39a9499677066c32600c17f">sort9</a></div><div class="ttdeci">uchar8 sort9(uchar8 p0, uchar8 p1, uchar8 p2, uchar8 p3, uchar8 p4, uchar8 p5, uchar8 p6, uchar8 p7, uchar8 p8)</div><div class="ttdoc">Sorting network to sort 9 vectors of 8 elements and return their median.</div><div class="ttdef"><b>Definition:</b> <a href="non__linear__filter__helpers_8h_source.xhtml#l00078">non_linear_filter_helpers.h:78</a></div></div> |
| <div class="ttc" id="non__linear__filter__helpers_8h_xhtml_ae3e09114bb887de4e20122eed42671a1"><div class="ttname"><a href="non__linear__filter__helpers_8h.xhtml#ae3e09114bb887de4e20122eed42671a1">row_reduce_min_3</a></div><div class="ttdeci">uchar8 row_reduce_min_3(uchar16 val)</div><div class="ttdoc">Calculate the minimum of a sliding window of size 3.</div><div class="ttdef"><b>Definition:</b> <a href="non__linear__filter__helpers_8h_source.xhtml#l00109">non_linear_filter_helpers.h:109</a></div></div> |
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