documentation/magnitude__phase_8cl.xhtml

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 114 <div class="header">
 115   <div class="summary">
 116 <a href="#define-members">Macros</a> &#124;
 117 <a href="#func-members">Functions</a>  </div>
 118   <div class="headertitle">
 119 <div class="title">magnitude_phase.cl File Reference</div>  </div>
 120 </div><!--header-->
 121 <div class="contents">
 122 <div class="textblock"><code>#include &quot;<a class="el" href="helpers_8h_source.xhtml">helpers.h</a>&quot;</code><br />
 123 </div>
 124 <p><a href="magnitude__phase_8cl_source.xhtml">Go to the source code of this file.</a></p>
 125 <table class="memberdecls">
 126 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="define-members"></a>
 127 Macros</h2></td></tr>
 128 <tr class="memitem:a259a59d7a4f247119c457af235827a29"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="magnitude__phase_8cl.xhtml#a259a59d7a4f247119c457af235827a29">MAGNITUDE_OP</a>(x,  y)&#160;&#160;&#160;<a class="el" href="magnitude__phase_8cl.xhtml#aedc7e5ee4cb8f5a0240e422f9a9e7ce9">magnitude_l1</a>((x), (y))</td></tr>
 129 <tr class="separator:a259a59d7a4f247119c457af235827a29"><td class="memSeparator" colspan="2">&#160;</td></tr>
 130 <tr class="memitem:a4434551334149479f843f87424bbb8c8"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="magnitude__phase_8cl.xhtml#a4434551334149479f843f87424bbb8c8">PHASE_OP</a>(x,  y)&#160;&#160;&#160;<a class="el" href="magnitude__phase_8cl.xhtml#ab0d7e891c8a09824c46baa2393d6961f">phase_unsigned</a>((x), (y))</td></tr>
 131 <tr class="separator:a4434551334149479f843f87424bbb8c8"><td class="memSeparator" colspan="2">&#160;</td></tr>
 132 </table><table class="memberdecls">
 133 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
 134 Functions</h2></td></tr>
 135 <tr class="memitem:aedc7e5ee4cb8f5a0240e422f9a9e7ce9"><td class="memItemLeft" align="right" valign="top">DATA_TYPE16&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="magnitude__phase_8cl.xhtml#aedc7e5ee4cb8f5a0240e422f9a9e7ce9">magnitude_l1</a> (DATA_TYPE16 a, DATA_TYPE16 b)</td></tr>
 136 <tr class="memdesc:aedc7e5ee4cb8f5a0240e422f9a9e7ce9"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculates L1 normalization between two inputs.  <a href="#aedc7e5ee4cb8f5a0240e422f9a9e7ce9">More...</a><br /></td></tr>
 137 <tr class="separator:aedc7e5ee4cb8f5a0240e422f9a9e7ce9"><td class="memSeparator" colspan="2">&#160;</td></tr>
 138 <tr class="memitem:aec9387519a61474acb0b2bf90ef6d94d"><td class="memItemLeft" align="right" valign="top">DATA_TYPE16&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="magnitude__phase_8cl.xhtml#aec9387519a61474acb0b2bf90ef6d94d">magnitude_l2</a> (int16 a, int16 b)</td></tr>
 139 <tr class="memdesc:aec9387519a61474acb0b2bf90ef6d94d"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculates L2 normalization between two inputs.  <a href="#aec9387519a61474acb0b2bf90ef6d94d">More...</a><br /></td></tr>
 140 <tr class="separator:aec9387519a61474acb0b2bf90ef6d94d"><td class="memSeparator" colspan="2">&#160;</td></tr>
 141 <tr class="memitem:ab0d7e891c8a09824c46baa2393d6961f"><td class="memItemLeft" align="right" valign="top">uchar16&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="magnitude__phase_8cl.xhtml#ab0d7e891c8a09824c46baa2393d6961f">phase_unsigned</a> (DATA_TYPE16 a, DATA_TYPE16 b)</td></tr>
 142 <tr class="memdesc:ab0d7e891c8a09824c46baa2393d6961f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculates unsigned phase between two inputs.  <a href="#ab0d7e891c8a09824c46baa2393d6961f">More...</a><br /></td></tr>
 143 <tr class="separator:ab0d7e891c8a09824c46baa2393d6961f"><td class="memSeparator" colspan="2">&#160;</td></tr>
 144 <tr class="memitem:a02ff978b574e44604d625dbd470ab870"><td class="memItemLeft" align="right" valign="top">uchar16&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="magnitude__phase_8cl.xhtml#a02ff978b574e44604d625dbd470ab870">phase_signed</a> (DATA_TYPE16 a, DATA_TYPE16 b)</td></tr>
 145 <tr class="memdesc:a02ff978b574e44604d625dbd470ab870"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculates signed phase between two inputs.  <a href="#a02ff978b574e44604d625dbd470ab870">More...</a><br /></td></tr>
 146 <tr class="separator:a02ff978b574e44604d625dbd470ab870"><td class="memSeparator" colspan="2">&#160;</td></tr>
 147 <tr class="memitem:a76ac02e1f05a26f67090c9464434e04a"><td class="memItemLeft" align="right" valign="top">__kernel void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="magnitude__phase_8cl.xhtml#a76ac02e1f05a26f67090c9464434e04a">magnitude_phase</a> (__global uchar *gx_ptr, uint gx_stride_x, uint gx_step_x, uint gx_stride_y, uint gx_step_y, uint gx_offset_first_element_in_bytes, __global uchar *gy_ptr, uint gy_stride_x, uint gy_step_x, uint gy_stride_y, uint gy_step_y, uint gy_offset_first_element_in_bytes, __global uchar *magnitude_ptr, uint magnitude_stride_x, uint magnitude_step_x, uint magnitude_stride_y, uint magnitude_step_y, uint magnitude_offset_first_element_in_bytes, __global uchar *phase_ptr, uint phase_stride_x, uint phase_step_x, uint phase_stride_y, uint phase_step_y, uint phase_offset_first_element_in_bytes)</td></tr>
 148 <tr class="memdesc:a76ac02e1f05a26f67090c9464434e04a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculate the magnitude and phase of given the gradients of an image.  <a href="#a76ac02e1f05a26f67090c9464434e04a">More...</a><br /></td></tr>
 149 <tr class="separator:a76ac02e1f05a26f67090c9464434e04a"><td class="memSeparator" colspan="2">&#160;</td></tr>
 150 </table>
 151 <h2 class="groupheader">Macro Definition Documentation</h2>
 152 <a class="anchor" id="a259a59d7a4f247119c457af235827a29"></a>
 153 <div class="memitem">
 154 <div class="memproto">
 155       <table class="memname">
 156         <tr>
 157           <td class="memname">#define MAGNITUDE_OP</td>
 158           <td>(</td>
 159           <td class="paramtype">&#160;</td>
 160           <td class="paramname">x, </td>
 161         </tr>
 162         <tr>
 163           <td class="paramkey"></td>
 164           <td></td>
 165           <td class="paramtype">&#160;</td>
 166           <td class="paramname">y&#160;</td>
 167         </tr>
 168         <tr>
 169           <td></td>
 170           <td>)</td>
 171           <td></td><td>&#160;&#160;&#160;<a class="el" href="magnitude__phase_8cl.xhtml#aedc7e5ee4cb8f5a0240e422f9a9e7ce9">magnitude_l1</a>((x), (y))</td>
 172         </tr>
 173       </table>
 174 </div><div class="memdoc">
 175
 176 <p>Definition at line <a class="el" href="magnitude__phase_8cl_source.xhtml#l00082">82</a> of file <a class="el" href="magnitude__phase_8cl_source.xhtml">magnitude_phase.cl</a>.</p>
 177
 178 <p>Referenced by <a class="el" href="magnitude__phase_8cl_source.xhtml#l00131">magnitude_phase()</a>.</p>
 179
 180 </div>
 181 </div>
 182 <a class="anchor" id="a4434551334149479f843f87424bbb8c8"></a>
 183 <div class="memitem">
 184 <div class="memproto">
 185       <table class="memname">
 186         <tr>
 187           <td class="memname">#define PHASE_OP</td>
 188           <td>(</td>
 189           <td class="paramtype">&#160;</td>
 190           <td class="paramname">x, </td>
 191         </tr>
 192         <tr>
 193           <td class="paramkey"></td>
 194           <td></td>
 195           <td class="paramtype">&#160;</td>
 196           <td class="paramname">y&#160;</td>
 197         </tr>
 198         <tr>
 199           <td></td>
 200           <td>)</td>
 201           <td></td><td>&#160;&#160;&#160;<a class="el" href="magnitude__phase_8cl.xhtml#ab0d7e891c8a09824c46baa2393d6961f">phase_unsigned</a>((x), (y))</td>
 202         </tr>
 203       </table>
 204 </div><div class="memdoc">
 205
 206 <p>Definition at line <a class="el" href="magnitude__phase_8cl_source.xhtml#l00090">90</a> of file <a class="el" href="magnitude__phase_8cl_source.xhtml">magnitude_phase.cl</a>.</p>
 207
 208 <p>Referenced by <a class="el" href="magnitude__phase_8cl_source.xhtml#l00131">magnitude_phase()</a>.</p>
 209
 210 </div>
 211 </div>
 212 <h2 class="groupheader">Function Documentation</h2>
 213 <a class="anchor" id="aedc7e5ee4cb8f5a0240e422f9a9e7ce9"></a>
 214 <div class="memitem">
 215 <div class="memproto">
 216 <table class="mlabels">
 217   <tr>
 218   <td class="mlabels-left">
 219       <table class="memname">
 220         <tr>
 221           <td class="memname">DATA_TYPE16 magnitude_l1 </td>
 222           <td>(</td>
 223           <td class="paramtype">DATA_TYPE16&#160;</td>
 224           <td class="paramname"><em>a</em>, </td>
 225         </tr>
 226         <tr>
 227           <td class="paramkey"></td>
 228           <td></td>
 229           <td class="paramtype">DATA_TYPE16&#160;</td>
 230           <td class="paramname"><em>b</em>&#160;</td>
 231         </tr>
 232         <tr>
 233           <td></td>
 234           <td>)</td>
 235           <td></td><td></td>
 236         </tr>
 237       </table>
 238   </td>
 239   <td class="mlabels-right">
 240 <span class="mlabels"><span class="mlabel">inline</span></span>  </td>
 241   </tr>
 242 </table>
 243 </div><div class="memdoc">
 244
 245 <p>Calculates L1 normalization between two inputs. </p>
 246 <dl class="params"><dt>Parameters</dt><dd>
 247   <table class="params">
 248     <tr><td class="paramdir">[in]</td><td class="paramname">a</td><td>First input. Supported data types: S16, S32 </td></tr>
 249     <tr><td class="paramdir">[in]</td><td class="paramname">b</td><td>Second input. Supported data types: S16, S32</td></tr>
 250   </table>
 251   </dd>
 252 </dl>
 253 <dl class="section return"><dt>Returns</dt><dd>L1 normalization magnitude result. Supported data types: S16, S32 </dd></dl>
 254
 255 <p>Definition at line <a class="el" href="magnitude__phase_8cl_source.xhtml#l00033">33</a> of file <a class="el" href="magnitude__phase_8cl_source.xhtml">magnitude_phase.cl</a>.</p>
 256
 257 <p>References <a class="el" href="helpers_8h_source.xhtml#l00038">CONVERT_SAT</a>, and <a class="el" href="helpers_8h_source.xhtml#l00032">VEC_DATA_TYPE</a>.</p>
 258 <div class="fragment"><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;    <span class="keywordflow">return</span> <a class="code" href="helpers_8h.xhtml#a23fb01b6f3453cc0e48a026fd44f6acd">CONVERT_SAT</a>(add_sat(abs(a), abs(b)), <a class="code" href="helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 16));</div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;}</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>
 259 <div class="ttc" id="helpers_8h_xhtml_a36f754c05b6fddf6df0d8d0a74f8159f"><div class="ttname"><a href="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="helpers_8h_source.xhtml#l00032">helpers.h:32</a></div></div>
 260 <div class="ttc" id="helpers_8h_xhtml_a23fb01b6f3453cc0e48a026fd44f6acd"><div class="ttname"><a href="helpers_8h.xhtml#a23fb01b6f3453cc0e48a026fd44f6acd">CONVERT_SAT</a></div><div class="ttdeci">#define CONVERT_SAT(x, type)</div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00038">helpers.h:38</a></div></div>
 261 </div><!-- fragment -->
 262 </div>
 263 </div>
 264 <a class="anchor" id="aec9387519a61474acb0b2bf90ef6d94d"></a>
 265 <div class="memitem">
 266 <div class="memproto">
 267 <table class="mlabels">
 268   <tr>
 269   <td class="mlabels-left">
 270       <table class="memname">
 271         <tr>
 272           <td class="memname">DATA_TYPE16 magnitude_l2 </td>
 273           <td>(</td>
 274           <td class="paramtype">int16&#160;</td>
 275           <td class="paramname"><em>a</em>, </td>
 276         </tr>
 277         <tr>
 278           <td class="paramkey"></td>
 279           <td></td>
 280           <td class="paramtype">int16&#160;</td>
 281           <td class="paramname"><em>b</em>&#160;</td>
 282         </tr>
 283         <tr>
 284           <td></td>
 285           <td>)</td>
 286           <td></td><td></td>
 287         </tr>
 288       </table>
 289   </td>
 290   <td class="mlabels-right">
 291 <span class="mlabels"><span class="mlabel">inline</span></span>  </td>
 292   </tr>
 293 </table>
 294 </div><div class="memdoc">
 295
 296 <p>Calculates L2 normalization between two inputs. </p>
 297 <dl class="params"><dt>Parameters</dt><dd>
 298   <table class="params">
 299     <tr><td class="paramdir">[in]</td><td class="paramname">a</td><td>First input. Supported data types: S16, S32 </td></tr>
 300     <tr><td class="paramdir">[in]</td><td class="paramname">b</td><td>Second input. Supported data types: S16, S32</td></tr>
 301   </table>
 302   </dd>
 303 </dl>
 304 <dl class="section return"><dt>Returns</dt><dd>L2 normalization magnitude result. Supported data types: S16, S32 </dd></dl>
 305
 306 <p>Definition at line <a class="el" href="magnitude__phase_8cl_source.xhtml#l00045">45</a> of file <a class="el" href="magnitude__phase_8cl_source.xhtml">magnitude_phase.cl</a>.</p>
 307
 308 <p>References <a class="el" href="helpers_8h_source.xhtml#l00038">CONVERT_SAT</a>, <a class="el" href="convolution3x3_8cl_source.xhtml#l00027">DATA_TYPE</a>, and <a class="el" href="helpers_8h_source.xhtml#l00032">VEC_DATA_TYPE</a>.</p>
 309 <div class="fragment"><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;    <span class="keywordflow">return</span> <a class="code" href="helpers_8h.xhtml#a23fb01b6f3453cc0e48a026fd44f6acd">CONVERT_SAT</a>((sqrt(convert_float16((convert_uint16(a * a) + convert_uint16(b * b)))) + 0.5f),</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;                       <a class="code" href="helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 16));</div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;}</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>
 310 <div class="ttc" id="helpers_8h_xhtml_a36f754c05b6fddf6df0d8d0a74f8159f"><div class="ttname"><a href="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="helpers_8h_source.xhtml#l00032">helpers.h:32</a></div></div>
 311 <div class="ttc" id="helpers_8h_xhtml_a23fb01b6f3453cc0e48a026fd44f6acd"><div class="ttname"><a href="helpers_8h.xhtml#a23fb01b6f3453cc0e48a026fd44f6acd">CONVERT_SAT</a></div><div class="ttdeci">#define CONVERT_SAT(x, type)</div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00038">helpers.h:38</a></div></div>
 312 </div><!-- fragment -->
 313 </div>
 314 </div>
 315 <a class="anchor" id="a76ac02e1f05a26f67090c9464434e04a"></a>
 316 <div class="memitem">
 317 <div class="memproto">
 318       <table class="memname">
 319         <tr>
 320           <td class="memname">__kernel void magnitude_phase </td>
 321           <td>(</td>
 322           <td class="paramtype">__global uchar *&#160;</td>
 323           <td class="paramname"><em>gx_ptr</em>, </td>
 324         </tr>
 325         <tr>
 326           <td class="paramkey"></td>
 327           <td></td>
 328           <td class="paramtype">uint&#160;</td>
 329           <td class="paramname"><em>gx_stride_x</em>, </td>
 330         </tr>
 331         <tr>
 332           <td class="paramkey"></td>
 333           <td></td>
 334           <td class="paramtype">uint&#160;</td>
 335           <td class="paramname"><em>gx_step_x</em>, </td>
 336         </tr>
 337         <tr>
 338           <td class="paramkey"></td>
 339           <td></td>
 340           <td class="paramtype">uint&#160;</td>
 341           <td class="paramname"><em>gx_stride_y</em>, </td>
 342         </tr>
 343         <tr>
 344           <td class="paramkey"></td>
 345           <td></td>
 346           <td class="paramtype">uint&#160;</td>
 347           <td class="paramname"><em>gx_step_y</em>, </td>
 348         </tr>
 349         <tr>
 350           <td class="paramkey"></td>
 351           <td></td>
 352           <td class="paramtype">uint&#160;</td>
 353           <td class="paramname"><em>gx_offset_first_element_in_bytes</em>, </td>
 354         </tr>
 355         <tr>
 356           <td class="paramkey"></td>
 357           <td></td>
 358           <td class="paramtype">__global uchar *&#160;</td>
 359           <td class="paramname"><em>gy_ptr</em>, </td>
 360         </tr>
 361         <tr>
 362           <td class="paramkey"></td>
 363           <td></td>
 364           <td class="paramtype">uint&#160;</td>
 365           <td class="paramname"><em>gy_stride_x</em>, </td>
 366         </tr>
 367         <tr>
 368           <td class="paramkey"></td>
 369           <td></td>
 370           <td class="paramtype">uint&#160;</td>
 371           <td class="paramname"><em>gy_step_x</em>, </td>
 372         </tr>
 373         <tr>
 374           <td class="paramkey"></td>
 375           <td></td>
 376           <td class="paramtype">uint&#160;</td>
 377           <td class="paramname"><em>gy_stride_y</em>, </td>
 378         </tr>
 379         <tr>
 380           <td class="paramkey"></td>
 381           <td></td>
 382           <td class="paramtype">uint&#160;</td>
 383           <td class="paramname"><em>gy_step_y</em>, </td>
 384         </tr>
 385         <tr>
 386           <td class="paramkey"></td>
 387           <td></td>
 388           <td class="paramtype">uint&#160;</td>
 389           <td class="paramname"><em>gy_offset_first_element_in_bytes</em>, </td>
 390         </tr>
 391         <tr>
 392           <td class="paramkey"></td>
 393           <td></td>
 394           <td class="paramtype">__global uchar *&#160;</td>
 395           <td class="paramname"><em>magnitude_ptr</em>, </td>
 396         </tr>
 397         <tr>
 398           <td class="paramkey"></td>
 399           <td></td>
 400           <td class="paramtype">uint&#160;</td>
 401           <td class="paramname"><em>magnitude_stride_x</em>, </td>
 402         </tr>
 403         <tr>
 404           <td class="paramkey"></td>
 405           <td></td>
 406           <td class="paramtype">uint&#160;</td>
 407           <td class="paramname"><em>magnitude_step_x</em>, </td>
 408         </tr>
 409         <tr>
 410           <td class="paramkey"></td>
 411           <td></td>
 412           <td class="paramtype">uint&#160;</td>
 413           <td class="paramname"><em>magnitude_stride_y</em>, </td>
 414         </tr>
 415         <tr>
 416           <td class="paramkey"></td>
 417           <td></td>
 418           <td class="paramtype">uint&#160;</td>
 419           <td class="paramname"><em>magnitude_step_y</em>, </td>
 420         </tr>
 421         <tr>
 422           <td class="paramkey"></td>
 423           <td></td>
 424           <td class="paramtype">uint&#160;</td>
 425           <td class="paramname"><em>magnitude_offset_first_element_in_bytes</em>, </td>
 426         </tr>
 427         <tr>
 428           <td class="paramkey"></td>
 429           <td></td>
 430           <td class="paramtype">__global uchar *&#160;</td>
 431           <td class="paramname"><em>phase_ptr</em>, </td>
 432         </tr>
 433         <tr>
 434           <td class="paramkey"></td>
 435           <td></td>
 436           <td class="paramtype">uint&#160;</td>
 437           <td class="paramname"><em>phase_stride_x</em>, </td>
 438         </tr>
 439         <tr>
 440           <td class="paramkey"></td>
 441           <td></td>
 442           <td class="paramtype">uint&#160;</td>
 443           <td class="paramname"><em>phase_step_x</em>, </td>
 444         </tr>
 445         <tr>
 446           <td class="paramkey"></td>
 447           <td></td>
 448           <td class="paramtype">uint&#160;</td>
 449           <td class="paramname"><em>phase_stride_y</em>, </td>
 450         </tr>
 451         <tr>
 452           <td class="paramkey"></td>
 453           <td></td>
 454           <td class="paramtype">uint&#160;</td>
 455           <td class="paramname"><em>phase_step_y</em>, </td>
 456         </tr>
 457         <tr>
 458           <td class="paramkey"></td>
 459           <td></td>
 460           <td class="paramtype">uint&#160;</td>
 461           <td class="paramname"><em>phase_offset_first_element_in_bytes</em>&#160;</td>
 462         </tr>
 463         <tr>
 464           <td></td>
 465           <td>)</td>
 466           <td></td><td></td>
 467         </tr>
 468       </table>
 469 </div><div class="memdoc">
 470
 471 <p>Calculate the magnitude and phase of given the gradients of an image. </p>
 472 <dl class="section note"><dt>Note</dt><dd>Magnitude calculation supported: L1 normalization(type = 1) and L2 normalization(type = 2). </dd>
 473 <dd>
 474 Phase calculation supported: Unsigned(type = 1) [0,128] and Signed(type = 2) [0,256).</dd></dl>
 475 <dl class="section attention"><dt>Attention</dt><dd>To enable phase calculation -DPHASE="phase_calculation_type_id" must be provided at compile time. eg -DPHASE=1 </dd>
 476 <dd>
 477 To enable magnitude calculation -DMAGNITUDE="magnitude_calculation_type_id" must be provided at compile time. eg -DMAGNITUDE=1 </dd>
 478 <dd>
 479 Datatype of the two inputs is passed at compile time using -DDATA_TYPE. e.g -DDATA_TYPE=short. Supported data_types are: short and int</dd></dl>
 480 <dl class="params"><dt>Parameters</dt><dd>
 481   <table class="params">
 482     <tr><td class="paramdir">[in]</td><td class="paramname">gx_ptr</td><td>Pointer to the first source image (gradient X). Supported data types: S16, S32 </td></tr>
 483     <tr><td class="paramdir">[in]</td><td class="paramname">gx_stride_x</td><td>Stride of the source image in X dimension (in bytes) </td></tr>
 484     <tr><td class="paramdir">[in]</td><td class="paramname">gx_step_x</td><td>gx_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
 485     <tr><td class="paramdir">[in]</td><td class="paramname">gx_stride_y</td><td>Stride of the source image in Y dimension (in bytes) </td></tr>
 486     <tr><td class="paramdir">[in]</td><td class="paramname">gx_step_y</td><td>gx_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
 487     <tr><td class="paramdir">[in]</td><td class="paramname">gx_offset_first_element_in_bytes</td><td>The offset of the first element in the source image </td></tr>
 488     <tr><td class="paramdir">[in]</td><td class="paramname">gy_ptr</td><td>Pointer to the second source image (gradient Y) . Supported data types: S16, S32 </td></tr>
 489     <tr><td class="paramdir">[in]</td><td class="paramname">gy_stride_x</td><td>Stride of the destination image in X dimension (in bytes) </td></tr>
 490     <tr><td class="paramdir">[in]</td><td class="paramname">gy_step_x</td><td>gy_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
 491     <tr><td class="paramdir">[in]</td><td class="paramname">gy_stride_y</td><td>Stride of the destination image in Y dimension (in bytes) </td></tr>
 492     <tr><td class="paramdir">[in]</td><td class="paramname">gy_step_y</td><td>gy_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
 493     <tr><td class="paramdir">[in]</td><td class="paramname">gy_offset_first_element_in_bytes</td><td>The offset of the first element in the destination image </td></tr>
 494     <tr><td class="paramdir">[out]</td><td class="paramname">magnitude_ptr</td><td>Pointer to the magnitude destination image. Supported data types: S16, S32 </td></tr>
 495     <tr><td class="paramdir">[in]</td><td class="paramname">magnitude_stride_x</td><td>Stride of the source image in X dimension (in bytes) </td></tr>
 496     <tr><td class="paramdir">[in]</td><td class="paramname">magnitude_step_x</td><td>magnitude_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
 497     <tr><td class="paramdir">[in]</td><td class="paramname">magnitude_stride_y</td><td>Stride of the source image in Y dimension (in bytes) </td></tr>
 498     <tr><td class="paramdir">[in]</td><td class="paramname">magnitude_step_y</td><td>magnitude_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
 499     <tr><td class="paramdir">[in]</td><td class="paramname">magnitude_offset_first_element_in_bytes</td><td>The offset of the first element in the source image </td></tr>
 500     <tr><td class="paramdir">[out]</td><td class="paramname">phase_ptr</td><td>Pointer to the phase destination image. Supported data types: U8 </td></tr>
 501     <tr><td class="paramdir">[in]</td><td class="paramname">phase_stride_x</td><td>Stride of the destination image in X dimension (in bytes) </td></tr>
 502     <tr><td class="paramdir">[in]</td><td class="paramname">phase_step_x</td><td>phase_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
 503     <tr><td class="paramdir">[in]</td><td class="paramname">phase_stride_y</td><td>Stride of the destination image in Y dimension (in bytes) </td></tr>
 504     <tr><td class="paramdir">[in]</td><td class="paramname">phase_step_y</td><td>phase_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
 505     <tr><td class="paramdir">[in]</td><td class="paramname">phase_offset_first_element_in_bytes</td><td>The offset of the first element in the destination image </td></tr>
 506   </table>
 507   </dd>
 508 </dl>
 509
 510 <p>Definition at line <a class="el" href="magnitude__phase_8cl_source.xhtml#l00131">131</a> of file <a class="el" href="magnitude__phase_8cl_source.xhtml">magnitude_phase.cl</a>.</p>
 511
 512 <p>References <a class="el" href="helpers_8h_source.xhtml#l00073">CONVERT_TO_IMAGE_STRUCT</a>, <a class="el" href="convolution3x3_8cl_source.xhtml#l00027">DATA_TYPE</a>, <a class="el" href="magnitude__phase_8cl_source.xhtml#l00082">MAGNITUDE_OP</a>, <a class="el" href="magnitude__phase_8cl_source.xhtml#l00090">PHASE_OP</a>, <a class="el" href="helpers_8h_source.xhtml#l00097">Image::ptr</a>, and <a class="el" href="helpers_8h_source.xhtml#l00032">VEC_DATA_TYPE</a>.</p>
 513 <div class="fragment"><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;{</div><div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;    <span class="comment">// Get pixels pointer</span></div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;    <a class="code" href="struct_image.xhtml">Image</a> gx = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(gx);</div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;    <a class="code" href="struct_image.xhtml">Image</a> gy = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(gy);</div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;</div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;    <span class="comment">// Load values</span></div><div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;    <a class="code" href="helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 16)</div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;    in_a = vload16(0, (__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)gx.ptr);</div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;    <a class="code" href="helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 16)</div><div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;    in_b = vload16(0, (__global DATA_TYPE *)gy.ptr);</div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;</div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;    <span class="comment">// Calculate and store the results</span></div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;<span class="preprocessor">#ifdef MAGNITUDE</span></div><div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;    <a class="code" href="struct_image.xhtml">Image</a> magnitude = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(magnitude);</div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;    vstore16(<a class="code" href="magnitude__phase_8cl.xhtml#a259a59d7a4f247119c457af235827a29">MAGNITUDE_OP</a>(in_a, in_b), 0, (__global DATA_TYPE *)magnitude.ptr);</div><div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;<span class="preprocessor">#ifdef PHASE</span></div><div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;    <a class="code" href="struct_image.xhtml">Image</a> phase = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(phase);</div><div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;    vstore16(<a class="code" href="magnitude__phase_8cl.xhtml#a4434551334149479f843f87424bbb8c8">PHASE_OP</a>(in_a, in_b), 0, phase.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;}</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>
 514 <div class="ttc" id="helpers_8h_xhtml_aebe814363556c244be043b13e7969197"><div class="ttname"><a href="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="helpers_8h_source.xhtml#l00073">helpers.h:73</a></div></div>
 515 <div class="ttc" id="helpers_8h_xhtml_a36f754c05b6fddf6df0d8d0a74f8159f"><div class="ttname"><a href="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="helpers_8h_source.xhtml#l00032">helpers.h:32</a></div></div>
 516 <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="helpers_8h_source.xhtml#l00095">helpers.h:95</a></div></div>
 517 <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="helpers_8h_source.xhtml#l00097">helpers.h:97</a></div></div>
 518 <div class="ttc" id="magnitude__phase_8cl_xhtml_a4434551334149479f843f87424bbb8c8"><div class="ttname"><a href="magnitude__phase_8cl.xhtml#a4434551334149479f843f87424bbb8c8">PHASE_OP</a></div><div class="ttdeci">#define PHASE_OP(x, y)</div><div class="ttdef"><b>Definition:</b> <a href="magnitude__phase_8cl_source.xhtml#l00090">magnitude_phase.cl:90</a></div></div>
 519 <div class="ttc" id="magnitude__phase_8cl_xhtml_a259a59d7a4f247119c457af235827a29"><div class="ttname"><a href="magnitude__phase_8cl.xhtml#a259a59d7a4f247119c457af235827a29">MAGNITUDE_OP</a></div><div class="ttdeci">#define MAGNITUDE_OP(x, y)</div><div class="ttdef"><b>Definition:</b> <a href="magnitude__phase_8cl_source.xhtml#l00082">magnitude_phase.cl:82</a></div></div>
 520 </div><!-- fragment -->
 521 </div>
 522 </div>
 523 <a class="anchor" id="a02ff978b574e44604d625dbd470ab870"></a>
 524 <div class="memitem">
 525 <div class="memproto">
 526 <table class="mlabels">
 527   <tr>
 528   <td class="mlabels-left">
 529       <table class="memname">
 530         <tr>
 531           <td class="memname">uchar16 phase_signed </td>
 532           <td>(</td>
 533           <td class="paramtype">DATA_TYPE16&#160;</td>
 534           <td class="paramname"><em>a</em>, </td>
 535         </tr>
 536         <tr>
 537           <td class="paramkey"></td>
 538           <td></td>
 539           <td class="paramtype">DATA_TYPE16&#160;</td>
 540           <td class="paramname"><em>b</em>&#160;</td>
 541         </tr>
 542         <tr>
 543           <td></td>
 544           <td>)</td>
 545           <td></td><td></td>
 546         </tr>
 547       </table>
 548   </td>
 549   <td class="mlabels-right">
 550 <span class="mlabels"><span class="mlabel">inline</span></span>  </td>
 551   </tr>
 552 </table>
 553 </div><div class="memdoc">
 554
 555 <p>Calculates signed phase between two inputs. </p>
 556 <dl class="params"><dt>Parameters</dt><dd>
 557   <table class="params">
 558     <tr><td class="paramdir">[in]</td><td class="paramname">a</td><td>First input. Supported data types: S16, S32 </td></tr>
 559     <tr><td class="paramdir">[in]</td><td class="paramname">b</td><td>Second input. Supported data types: S16, S32</td></tr>
 560   </table>
 561   </dd>
 562 </dl>
 563 <dl class="section return"><dt>Returns</dt><dd>Signed phase mapped in the interval [0, 256). Supported data types: U8 </dd></dl>
 564
 565 <p>Definition at line <a class="el" href="magnitude__phase_8cl_source.xhtml#l00073">73</a> of file <a class="el" href="magnitude__phase_8cl_source.xhtml">magnitude_phase.cl</a>.</p>
 566 <div class="fragment"><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;{</div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;    float16 arct = atan2pi(convert_float16(b), convert_float16(a));</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;    arct         = select(arct, arct + 2, arct &lt; 0.0f);</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;</div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;    <span class="keywordflow">return</span> convert_uchar16(convert_int16(mad(arct, 128, 0.5f)) &amp; 0xFFu);</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;}</div></div><!-- fragment -->
 567 </div>
 568 </div>
 569 <a class="anchor" id="ab0d7e891c8a09824c46baa2393d6961f"></a>
 570 <div class="memitem">
 571 <div class="memproto">
 572 <table class="mlabels">
 573   <tr>
 574   <td class="mlabels-left">
 575       <table class="memname">
 576         <tr>
 577           <td class="memname">uchar16 phase_unsigned </td>
 578           <td>(</td>
 579           <td class="paramtype">DATA_TYPE16&#160;</td>
 580           <td class="paramname"><em>a</em>, </td>
 581         </tr>
 582         <tr>
 583           <td class="paramkey"></td>
 584           <td></td>
 585           <td class="paramtype">DATA_TYPE16&#160;</td>
 586           <td class="paramname"><em>b</em>&#160;</td>
 587         </tr>
 588         <tr>
 589           <td></td>
 590           <td>)</td>
 591           <td></td><td></td>
 592         </tr>
 593       </table>
 594   </td>
 595   <td class="mlabels-right">
 596 <span class="mlabels"><span class="mlabel">inline</span></span>  </td>
 597   </tr>
 598 </table>
 599 </div><div class="memdoc">
 600
 601 <p>Calculates unsigned phase between two inputs. </p>
 602 <dl class="params"><dt>Parameters</dt><dd>
 603   <table class="params">
 604     <tr><td class="paramdir">[in]</td><td class="paramname">a</td><td>First input. Supported data types: S16, S32 </td></tr>
 605     <tr><td class="paramdir">[in]</td><td class="paramname">b</td><td>Second input. Supported data types: S16, S32</td></tr>
 606   </table>
 607   </dd>
 608 </dl>
 609 <dl class="section return"><dt>Returns</dt><dd>Unsigned phase mapped in the interval [0, 180]. Supported data types: U8 </dd></dl>
 610
 611 <p>Definition at line <a class="el" href="magnitude__phase_8cl_source.xhtml#l00058">58</a> of file <a class="el" href="magnitude__phase_8cl_source.xhtml">magnitude_phase.cl</a>.</p>
 612 <div class="fragment"><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;{</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;    float16 arct = atan2pi(convert_float16(b), convert_float16(a));</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;    arct         = select(arct, arct + 2, arct &lt; 0.0f);</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="keywordflow">return</span> convert_uchar16(convert_int16(mad(arct, 90, 0.5f)) &amp; 0xFFu);</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;}</div></div><!-- fragment -->
 613 </div>
 614 </div>
 615 </div><!-- contents -->
 616 </div><!-- doc-content -->
 617 <!-- start footer part -->
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 619   <ul>
 620     <li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.xhtml">src</a></li><li class="navelem"><a class="el" href="dir_aebb8dcc11953d78e620bbef0b9e2183.xhtml">core</a></li><li class="navelem"><a class="el" href="dir_8c278f79c760e5c5fbd911f9870614c1.xhtml">CL</a></li><li class="navelem"><a class="el" href="dir_25885286e9dad4fa105b7b25a8031bbf.xhtml">cl_kernels</a></li><li class="navelem"><a class="el" href="magnitude__phase_8cl.xhtml">magnitude_phase.cl</a></li>
 621     <li class="footer">Generated on Wed Apr 12 2017 14:26:05 for ARM Compute Library by
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 623     <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.11 </li>
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