ipfml.processing.html 39 KB

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  73. <div class="section" id="module-ipfml.processing">
  74. <span id="ipfml-processing"></span><h1>ipfml.processing<a class="headerlink" href="#module-ipfml.processing" title="Permalink to this headline">¶</a></h1>
  75. <p>Functions to quickly extract reduced information from image</p>
  76. <p class="rubric">Functions</p>
  77. <table border="1" class="longtable docutils">
  78. <colgroup>
  79. <col width="10%" />
  80. <col width="90%" />
  81. </colgroup>
  82. <tbody valign="top">
  83. <tr class="row-odd"><td><a class="reference internal" href="#ipfml.processing.divide_in_blocks" title="ipfml.processing.divide_in_blocks"><code class="xref py py-obj docutils literal notranslate"><span class="pre">divide_in_blocks</span></code></a>(image,&nbsp;block_size[,&nbsp;pil])</td>
  84. <td>Divide image into equal size blocks</td>
  85. </tr>
  86. <tr class="row-even"><td><a class="reference internal" href="#ipfml.processing.fusion_images" title="ipfml.processing.fusion_images"><code class="xref py py-obj docutils literal notranslate"><span class="pre">fusion_images</span></code></a>(images[,&nbsp;pil])</td>
  87. <td>Fusion array of images into single image</td>
  88. </tr>
  89. <tr class="row-odd"><td><a class="reference internal" href="#ipfml.processing.get_LAB_L_SVD" title="ipfml.processing.get_LAB_L_SVD"><code class="xref py py-obj docutils literal notranslate"><span class="pre">get_LAB_L_SVD</span></code></a>(image)</td>
  90. <td>Returns Singular values from LAB L Image information</td>
  91. </tr>
  92. <tr class="row-even"><td><a class="reference internal" href="#ipfml.processing.get_LAB_L_SVD_U" title="ipfml.processing.get_LAB_L_SVD_U"><code class="xref py py-obj docutils literal notranslate"><span class="pre">get_LAB_L_SVD_U</span></code></a>(image)</td>
  93. <td>Returns U SVD from L of LAB Image information</td>
  94. </tr>
  95. <tr class="row-odd"><td><a class="reference internal" href="#ipfml.processing.get_LAB_L_SVD_V" title="ipfml.processing.get_LAB_L_SVD_V"><code class="xref py py-obj docutils literal notranslate"><span class="pre">get_LAB_L_SVD_V</span></code></a>(image)</td>
  96. <td>Returns V SVD from L of LAB Image information</td>
  97. </tr>
  98. <tr class="row-even"><td><a class="reference internal" href="#ipfml.processing.get_LAB_L_SVD_s" title="ipfml.processing.get_LAB_L_SVD_s"><code class="xref py py-obj docutils literal notranslate"><span class="pre">get_LAB_L_SVD_s</span></code></a>(image)</td>
  99. <td>Returns s (Singular values) SVD from L of LAB Image information</td>
  100. </tr>
  101. <tr class="row-odd"><td><a class="reference internal" href="#ipfml.processing.rgb_to_LAB_L_bits" title="ipfml.processing.rgb_to_LAB_L_bits"><code class="xref py py-obj docutils literal notranslate"><span class="pre">rgb_to_LAB_L_bits</span></code></a>(image,&nbsp;interval)</td>
  102. <td>Returns only bits from LAB L canal specified into the interval</td>
  103. </tr>
  104. <tr class="row-even"><td><a class="reference internal" href="#ipfml.processing.rgb_to_LAB_L_low_bits" title="ipfml.processing.rgb_to_LAB_L_low_bits"><code class="xref py py-obj docutils literal notranslate"><span class="pre">rgb_to_LAB_L_low_bits</span></code></a>(image[,&nbsp;nb_bits])</td>
  105. <td>Convert RGB Image into Lab L channel image using only 4 low bits values</td>
  106. </tr>
  107. <tr class="row-odd"><td><a class="reference internal" href="#ipfml.processing.rgb_to_grey_low_bits" title="ipfml.processing.rgb_to_grey_low_bits"><code class="xref py py-obj docutils literal notranslate"><span class="pre">rgb_to_grey_low_bits</span></code></a>(image[,&nbsp;nb_bits])</td>
  108. <td>Convert RGB Image into grey image using only 4 low bits values</td>
  109. </tr>
  110. <tr class="row-even"><td><a class="reference internal" href="#ipfml.processing.rgb_to_mscn" title="ipfml.processing.rgb_to_mscn"><code class="xref py py-obj docutils literal notranslate"><span class="pre">rgb_to_mscn</span></code></a>(image)</td>
  111. <td>Convert RGB Image into Mean Subtracted Contrast Normalized (MSCN)</td>
  112. </tr>
  113. <tr class="row-odd"><td><a class="reference internal" href="#ipfml.processing.rotate_image" title="ipfml.processing.rotate_image"><code class="xref py py-obj docutils literal notranslate"><span class="pre">rotate_image</span></code></a>(image[,&nbsp;angle,&nbsp;pil])</td>
  114. <td>Rotate image using specific angle</td>
  115. </tr>
  116. </tbody>
  117. </table>
  118. <dl class="function">
  119. <dt id="ipfml.processing.divide_in_blocks">
  120. <code class="descclassname">ipfml.processing.</code><code class="descname">divide_in_blocks</code><span class="sig-paren">(</span><em>image</em>, <em>block_size</em>, <em>pil=True</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/ipfml/processing.html#divide_in_blocks"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#ipfml.processing.divide_in_blocks" title="Permalink to this definition">¶</a></dt>
  121. <dd><p>Divide image into equal size blocks</p>
  122. <table class="docutils field-list" frame="void" rules="none">
  123. <col class="field-name" />
  124. <col class="field-body" />
  125. <tbody valign="top">
  126. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
  127. <li><strong>image</strong> – PIL Image or Numpy array</li>
  128. <li><strong>block</strong> – tuple (width, height) representing the size of each dimension of the block</li>
  129. <li><strong>pil</strong> – block type returned as PIL Image (default True)</li>
  130. </ul>
  131. </td>
  132. </tr>
  133. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">list containing all 2D Numpy blocks (in RGB or not)</p>
  134. </td>
  135. </tr>
  136. <tr class="field-odd field"><th class="field-name">Raises:</th><td class="field-body"><p class="first last"><code class="xref py py-exc docutils literal notranslate"><span class="pre">ValueError</span></code> – If <cite>image_width</cite> or <cite>image_height</cite> are not compatible to produce correct block sizes</p>
  137. </td>
  138. </tr>
  139. </tbody>
  140. </table>
  141. <p>Example:</p>
  142. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="kn">import</span> <span class="nn">numpy</span> <span class="k">as</span> <span class="nn">np</span>
  143. <span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">PIL</span> <span class="k">import</span> <span class="n">Image</span>
  144. <span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">ipfml</span> <span class="k">import</span> <span class="n">processing</span>
  145. <span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">ipfml</span> <span class="k">import</span> <span class="n">metrics</span>
  146. <span class="gp">&gt;&gt;&gt; </span><span class="n">image_values</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">random</span><span class="o">.</span><span class="n">randint</span><span class="p">(</span><span class="mi">255</span><span class="p">,</span> <span class="n">size</span><span class="o">=</span><span class="p">(</span><span class="mi">800</span><span class="p">,</span> <span class="mi">800</span><span class="p">,</span> <span class="mi">3</span><span class="p">))</span>
  147. <span class="gp">&gt;&gt;&gt; </span><span class="n">blocks</span> <span class="o">=</span> <span class="n">divide_in_blocks</span><span class="p">(</span><span class="n">image_values</span><span class="p">,</span> <span class="p">(</span><span class="mi">20</span><span class="p">,</span> <span class="mi">20</span><span class="p">))</span>
  148. <span class="gp">&gt;&gt;&gt; </span><span class="nb">len</span><span class="p">(</span><span class="n">blocks</span><span class="p">)</span>
  149. <span class="go">1600</span>
  150. <span class="gp">&gt;&gt;&gt; </span><span class="n">blocks</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">width</span>
  151. <span class="go">20</span>
  152. <span class="gp">&gt;&gt;&gt; </span><span class="n">blocks</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">height</span>
  153. <span class="go">20</span>
  154. <span class="gp">&gt;&gt;&gt; </span><span class="n">img_l</span> <span class="o">=</span> <span class="n">Image</span><span class="o">.</span><span class="n">open</span><span class="p">(</span><span class="s1">&#39;./images/test_img.png&#39;</span><span class="p">)</span>
  155. <span class="gp">&gt;&gt;&gt; </span><span class="n">L</span> <span class="o">=</span> <span class="n">metrics</span><span class="o">.</span><span class="n">get_LAB_L</span><span class="p">(</span><span class="n">img_l</span><span class="p">)</span>
  156. <span class="gp">&gt;&gt;&gt; </span><span class="n">blocks_L</span> <span class="o">=</span> <span class="n">divide_in_blocks</span><span class="p">(</span><span class="n">L</span><span class="p">,</span> <span class="p">(</span><span class="mi">100</span><span class="p">,</span> <span class="mi">100</span><span class="p">))</span>
  157. <span class="gp">&gt;&gt;&gt; </span><span class="nb">len</span><span class="p">(</span><span class="n">blocks_L</span><span class="p">)</span>
  158. <span class="go">4</span>
  159. <span class="gp">&gt;&gt;&gt; </span><span class="n">blocks_L</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">width</span>
  160. <span class="go">100</span>
  161. </pre></div>
  162. </div>
  163. </dd></dl>
  164. <dl class="function">
  165. <dt id="ipfml.processing.fusion_images">
  166. <code class="descclassname">ipfml.processing.</code><code class="descname">fusion_images</code><span class="sig-paren">(</span><em>images</em>, <em>pil=True</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/ipfml/processing.html#fusion_images"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#ipfml.processing.fusion_images" title="Permalink to this definition">¶</a></dt>
  167. <dd><p>Fusion array of images into single image</p>
  168. <table class="docutils field-list" frame="void" rules="none">
  169. <col class="field-name" />
  170. <col class="field-body" />
  171. <tbody valign="top">
  172. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
  173. <li><strong>images</strong> – array of images (PIL Image or Numpy array)</li>
  174. <li><strong>pil</strong> – block type returned as PIL Image (default True)</li>
  175. </ul>
  176. </td>
  177. </tr>
  178. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">merged image from array of images</p>
  179. </td>
  180. </tr>
  181. <tr class="field-odd field"><th class="field-name">Raises:</th><td class="field-body"><ul class="first last simple">
  182. <li><code class="xref py py-exc docutils literal notranslate"><span class="pre">ValueError</span></code> – if <cite>images</cite> is not an array or is empty</li>
  183. <li><code class="xref py py-exc docutils literal notranslate"><span class="pre">NumpyShapeComparisonException</span></code> – if <cite>images</cite> array contains images with different shapes</li>
  184. </ul>
  185. </td>
  186. </tr>
  187. </tbody>
  188. </table>
  189. <p>Example:</p>
  190. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="kn">import</span> <span class="nn">numpy</span> <span class="k">as</span> <span class="nn">np</span>
  191. <span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">ipfml</span> <span class="k">import</span> <span class="n">processing</span>
  192. <span class="gp">&gt;&gt;&gt; </span><span class="n">image_values_1</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">random</span><span class="o">.</span><span class="n">randint</span><span class="p">(</span><span class="mi">255</span><span class="p">,</span> <span class="n">size</span><span class="o">=</span><span class="p">(</span><span class="mi">800</span><span class="p">,</span> <span class="mi">800</span><span class="p">,</span> <span class="mi">3</span><span class="p">))</span>
  193. <span class="gp">&gt;&gt;&gt; </span><span class="n">image_values_2</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">random</span><span class="o">.</span><span class="n">randint</span><span class="p">(</span><span class="mi">255</span><span class="p">,</span> <span class="n">size</span><span class="o">=</span><span class="p">(</span><span class="mi">800</span><span class="p">,</span> <span class="mi">800</span><span class="p">,</span> <span class="mi">3</span><span class="p">))</span>
  194. <span class="gp">&gt;&gt;&gt; </span><span class="n">merged_image</span> <span class="o">=</span> <span class="n">processing</span><span class="o">.</span><span class="n">fusion_images</span><span class="p">([</span><span class="n">image_values_1</span><span class="p">,</span> <span class="n">image_values_2</span><span class="p">],</span> <span class="n">pil</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span>
  195. <span class="gp">&gt;&gt;&gt; </span><span class="n">merged_image</span><span class="o">.</span><span class="n">shape</span>
  196. <span class="go">(800, 800, 3)</span>
  197. </pre></div>
  198. </div>
  199. </dd></dl>
  200. <dl class="function">
  201. <dt id="ipfml.processing.get_LAB_L_SVD">
  202. <code class="descclassname">ipfml.processing.</code><code class="descname">get_LAB_L_SVD</code><span class="sig-paren">(</span><em>image</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/ipfml/processing.html#get_LAB_L_SVD"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#ipfml.processing.get_LAB_L_SVD" title="Permalink to this definition">¶</a></dt>
  203. <dd><p>Returns Singular values from LAB L Image information</p>
  204. <table class="docutils field-list" frame="void" rules="none">
  205. <col class="field-name" />
  206. <col class="field-body" />
  207. <tbody valign="top">
  208. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>image</strong> – PIL Image or Numpy array</td>
  209. </tr>
  210. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">U, s, V information obtained from SVD compression using Lab</td>
  211. </tr>
  212. </tbody>
  213. </table>
  214. <p>Example:</p>
  215. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">PIL</span> <span class="k">import</span> <span class="n">Image</span>
  216. <span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">ipfml</span> <span class="k">import</span> <span class="n">processing</span>
  217. <span class="gp">&gt;&gt;&gt; </span><span class="n">img</span> <span class="o">=</span> <span class="n">Image</span><span class="o">.</span><span class="n">open</span><span class="p">(</span><span class="s1">&#39;./images/test_img.png&#39;</span><span class="p">)</span>
  218. <span class="gp">&gt;&gt;&gt; </span><span class="n">U</span><span class="p">,</span> <span class="n">s</span><span class="p">,</span> <span class="n">V</span> <span class="o">=</span> <span class="n">processing</span><span class="o">.</span><span class="n">get_LAB_L_SVD</span><span class="p">(</span><span class="n">img</span><span class="p">)</span>
  219. <span class="gp">&gt;&gt;&gt; </span><span class="n">U</span><span class="o">.</span><span class="n">shape</span>
  220. <span class="go">(200, 200)</span>
  221. <span class="gp">&gt;&gt;&gt; </span><span class="nb">len</span><span class="p">(</span><span class="n">s</span><span class="p">)</span>
  222. <span class="go">200</span>
  223. <span class="gp">&gt;&gt;&gt; </span><span class="n">V</span><span class="o">.</span><span class="n">shape</span>
  224. <span class="go">(200, 200)</span>
  225. </pre></div>
  226. </div>
  227. </dd></dl>
  228. <dl class="function">
  229. <dt id="ipfml.processing.get_LAB_L_SVD_U">
  230. <code class="descclassname">ipfml.processing.</code><code class="descname">get_LAB_L_SVD_U</code><span class="sig-paren">(</span><em>image</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/ipfml/processing.html#get_LAB_L_SVD_U"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#ipfml.processing.get_LAB_L_SVD_U" title="Permalink to this definition">¶</a></dt>
  231. <dd><p>Returns U SVD from L of LAB Image information</p>
  232. <table class="docutils field-list" frame="void" rules="none">
  233. <col class="field-name" />
  234. <col class="field-body" />
  235. <tbody valign="top">
  236. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>image</strong> – PIL Image or Numpy array</td>
  237. </tr>
  238. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">U matrix of SVD compression</td>
  239. </tr>
  240. </tbody>
  241. </table>
  242. <p>Example:</p>
  243. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">PIL</span> <span class="k">import</span> <span class="n">Image</span>
  244. <span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">ipfml</span> <span class="k">import</span> <span class="n">processing</span>
  245. <span class="gp">&gt;&gt;&gt; </span><span class="n">img</span> <span class="o">=</span> <span class="n">Image</span><span class="o">.</span><span class="n">open</span><span class="p">(</span><span class="s1">&#39;./images/test_img.png&#39;</span><span class="p">)</span>
  246. <span class="gp">&gt;&gt;&gt; </span><span class="n">U</span> <span class="o">=</span> <span class="n">processing</span><span class="o">.</span><span class="n">get_LAB_L_SVD_U</span><span class="p">(</span><span class="n">img</span><span class="p">)</span>
  247. <span class="gp">&gt;&gt;&gt; </span><span class="n">U</span><span class="o">.</span><span class="n">shape</span>
  248. <span class="go">(200, 200)</span>
  249. </pre></div>
  250. </div>
  251. </dd></dl>
  252. <dl class="function">
  253. <dt id="ipfml.processing.get_LAB_L_SVD_V">
  254. <code class="descclassname">ipfml.processing.</code><code class="descname">get_LAB_L_SVD_V</code><span class="sig-paren">(</span><em>image</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/ipfml/processing.html#get_LAB_L_SVD_V"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#ipfml.processing.get_LAB_L_SVD_V" title="Permalink to this definition">¶</a></dt>
  255. <dd><p>Returns V SVD from L of LAB Image information</p>
  256. <table class="docutils field-list" frame="void" rules="none">
  257. <col class="field-name" />
  258. <col class="field-body" />
  259. <tbody valign="top">
  260. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>image</strong> – PIL Image or Numpy array</td>
  261. </tr>
  262. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">V matrix of SVD compression</td>
  263. </tr>
  264. </tbody>
  265. </table>
  266. <p>Example:</p>
  267. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">PIL</span> <span class="k">import</span> <span class="n">Image</span>
  268. <span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">ipfml</span> <span class="k">import</span> <span class="n">processing</span>
  269. <span class="gp">&gt;&gt;&gt; </span><span class="n">img</span> <span class="o">=</span> <span class="n">Image</span><span class="o">.</span><span class="n">open</span><span class="p">(</span><span class="s1">&#39;./images/test_img.png&#39;</span><span class="p">)</span>
  270. <span class="gp">&gt;&gt;&gt; </span><span class="n">V</span> <span class="o">=</span> <span class="n">processing</span><span class="o">.</span><span class="n">get_LAB_L_SVD_V</span><span class="p">(</span><span class="n">img</span><span class="p">)</span>
  271. <span class="gp">&gt;&gt;&gt; </span><span class="n">V</span><span class="o">.</span><span class="n">shape</span>
  272. <span class="go">(200, 200)</span>
  273. </pre></div>
  274. </div>
  275. </dd></dl>
  276. <dl class="function">
  277. <dt id="ipfml.processing.get_LAB_L_SVD_s">
  278. <code class="descclassname">ipfml.processing.</code><code class="descname">get_LAB_L_SVD_s</code><span class="sig-paren">(</span><em>image</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/ipfml/processing.html#get_LAB_L_SVD_s"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#ipfml.processing.get_LAB_L_SVD_s" title="Permalink to this definition">¶</a></dt>
  279. <dd><p>Returns s (Singular values) SVD from L of LAB Image information</p>
  280. <table class="docutils field-list" frame="void" rules="none">
  281. <col class="field-name" />
  282. <col class="field-body" />
  283. <tbody valign="top">
  284. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>image</strong> – PIL Image or Numpy array</td>
  285. </tr>
  286. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">vector of singular values</td>
  287. </tr>
  288. </tbody>
  289. </table>
  290. <p>Example:</p>
  291. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">PIL</span> <span class="k">import</span> <span class="n">Image</span>
  292. <span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">ipfml</span> <span class="k">import</span> <span class="n">processing</span>
  293. <span class="gp">&gt;&gt;&gt; </span><span class="n">img</span> <span class="o">=</span> <span class="n">Image</span><span class="o">.</span><span class="n">open</span><span class="p">(</span><span class="s1">&#39;./images/test_img.png&#39;</span><span class="p">)</span>
  294. <span class="gp">&gt;&gt;&gt; </span><span class="n">s</span> <span class="o">=</span> <span class="n">processing</span><span class="o">.</span><span class="n">get_LAB_L_SVD_s</span><span class="p">(</span><span class="n">img</span><span class="p">)</span>
  295. <span class="gp">&gt;&gt;&gt; </span><span class="nb">len</span><span class="p">(</span><span class="n">s</span><span class="p">)</span>
  296. <span class="go">200</span>
  297. </pre></div>
  298. </div>
  299. </dd></dl>
  300. <dl class="function">
  301. <dt id="ipfml.processing.rgb_to_LAB_L_bits">
  302. <code class="descclassname">ipfml.processing.</code><code class="descname">rgb_to_LAB_L_bits</code><span class="sig-paren">(</span><em>image</em>, <em>interval</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/ipfml/processing.html#rgb_to_LAB_L_bits"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#ipfml.processing.rgb_to_LAB_L_bits" title="Permalink to this definition">¶</a></dt>
  303. <dd><p>Returns only bits from LAB L canal specified into the interval</p>
  304. <table class="docutils field-list" frame="void" rules="none">
  305. <col class="field-name" />
  306. <col class="field-body" />
  307. <tbody valign="top">
  308. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
  309. <li><strong>image</strong> – image to convert using this interval of bits value to keep</li>
  310. <li><strong>interval</strong> – (begin, end) of bits values</li>
  311. </ul>
  312. </td>
  313. </tr>
  314. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">2D Numpy array with reduced values</p>
  315. </td>
  316. </tr>
  317. </tbody>
  318. </table>
  319. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">PIL</span> <span class="k">import</span> <span class="n">Image</span>
  320. <span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">ipfml</span> <span class="k">import</span> <span class="n">processing</span>
  321. <span class="gp">&gt;&gt;&gt; </span><span class="n">img</span> <span class="o">=</span> <span class="n">Image</span><span class="o">.</span><span class="n">open</span><span class="p">(</span><span class="s1">&#39;./images/test_img.png&#39;</span><span class="p">)</span>
  322. <span class="gp">&gt;&gt;&gt; </span><span class="n">bits_Lab_l_img</span> <span class="o">=</span> <span class="n">processing</span><span class="o">.</span><span class="n">rgb_to_LAB_L_bits</span><span class="p">(</span><span class="n">img</span><span class="p">,</span> <span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="mi">6</span><span class="p">))</span>
  323. <span class="gp">&gt;&gt;&gt; </span><span class="n">bits_Lab_l_img</span><span class="o">.</span><span class="n">shape</span>
  324. <span class="go">(200, 200)</span>
  325. </pre></div>
  326. </div>
  327. </dd></dl>
  328. <dl class="function">
  329. <dt id="ipfml.processing.rgb_to_LAB_L_low_bits">
  330. <code class="descclassname">ipfml.processing.</code><code class="descname">rgb_to_LAB_L_low_bits</code><span class="sig-paren">(</span><em>image</em>, <em>nb_bits=4</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/ipfml/processing.html#rgb_to_LAB_L_low_bits"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#ipfml.processing.rgb_to_LAB_L_low_bits" title="Permalink to this definition">¶</a></dt>
  331. <dd><p>Convert RGB Image into Lab L channel image using only 4 low bits values</p>
  332. <table class="docutils field-list" frame="void" rules="none">
  333. <col class="field-name" />
  334. <col class="field-body" />
  335. <tbody valign="top">
  336. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
  337. <li><strong>image</strong> – 3D RGB image Numpy array or PIL RGB image</li>
  338. <li><strong>nb_bits</strong> – optional parameter which indicates the number of bits to keep (default 4)</li>
  339. </ul>
  340. </td>
  341. </tr>
  342. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">2D Numpy array with low bits information kept</p>
  343. </td>
  344. </tr>
  345. </tbody>
  346. </table>
  347. <p>Example:</p>
  348. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">PIL</span> <span class="k">import</span> <span class="n">Image</span>
  349. <span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">ipfml</span> <span class="k">import</span> <span class="n">processing</span>
  350. <span class="gp">&gt;&gt;&gt; </span><span class="n">img</span> <span class="o">=</span> <span class="n">Image</span><span class="o">.</span><span class="n">open</span><span class="p">(</span><span class="s1">&#39;./images/test_img.png&#39;</span><span class="p">)</span>
  351. <span class="gp">&gt;&gt;&gt; </span><span class="n">low_bits_Lab_l_img</span> <span class="o">=</span> <span class="n">processing</span><span class="o">.</span><span class="n">rgb_to_LAB_L_low_bits</span><span class="p">(</span><span class="n">img</span><span class="p">,</span> <span class="mi">5</span><span class="p">)</span>
  352. <span class="gp">&gt;&gt;&gt; </span><span class="n">low_bits_Lab_l_img</span><span class="o">.</span><span class="n">shape</span>
  353. <span class="go">(200, 200)</span>
  354. </pre></div>
  355. </div>
  356. </dd></dl>
  357. <dl class="function">
  358. <dt id="ipfml.processing.rgb_to_grey_low_bits">
  359. <code class="descclassname">ipfml.processing.</code><code class="descname">rgb_to_grey_low_bits</code><span class="sig-paren">(</span><em>image</em>, <em>nb_bits=4</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/ipfml/processing.html#rgb_to_grey_low_bits"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#ipfml.processing.rgb_to_grey_low_bits" title="Permalink to this definition">¶</a></dt>
  360. <dd><p>Convert RGB Image into grey image using only 4 low bits values</p>
  361. <table class="docutils field-list" frame="void" rules="none">
  362. <col class="field-name" />
  363. <col class="field-body" />
  364. <tbody valign="top">
  365. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
  366. <li><strong>image</strong> – 3D RGB image Numpy array or PIL RGB image</li>
  367. <li><strong>nb_bits</strong> – optional parameter which indicates the number of bits to keep (default 4)</li>
  368. </ul>
  369. </td>
  370. </tr>
  371. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">2D Numpy array with low bits information kept</p>
  372. </td>
  373. </tr>
  374. </tbody>
  375. </table>
  376. <p>Example:</p>
  377. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">PIL</span> <span class="k">import</span> <span class="n">Image</span>
  378. <span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">ipfml</span> <span class="k">import</span> <span class="n">processing</span>
  379. <span class="gp">&gt;&gt;&gt; </span><span class="n">img</span> <span class="o">=</span> <span class="n">Image</span><span class="o">.</span><span class="n">open</span><span class="p">(</span><span class="s1">&#39;./images/test_img.png&#39;</span><span class="p">)</span>
  380. <span class="gp">&gt;&gt;&gt; </span><span class="n">low_bits_grey_img</span> <span class="o">=</span> <span class="n">processing</span><span class="o">.</span><span class="n">rgb_to_grey_low_bits</span><span class="p">(</span><span class="n">img</span><span class="p">,</span> <span class="mi">5</span><span class="p">)</span>
  381. <span class="gp">&gt;&gt;&gt; </span><span class="n">low_bits_grey_img</span><span class="o">.</span><span class="n">shape</span>
  382. <span class="go">(200, 200)</span>
  383. </pre></div>
  384. </div>
  385. </dd></dl>
  386. <dl class="function">
  387. <dt id="ipfml.processing.rgb_to_mscn">
  388. <code class="descclassname">ipfml.processing.</code><code class="descname">rgb_to_mscn</code><span class="sig-paren">(</span><em>image</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/ipfml/processing.html#rgb_to_mscn"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#ipfml.processing.rgb_to_mscn" title="Permalink to this definition">¶</a></dt>
  389. <dd><p>Convert RGB Image into Mean Subtracted Contrast Normalized (MSCN)</p>
  390. <table class="docutils field-list" frame="void" rules="none">
  391. <col class="field-name" />
  392. <col class="field-body" />
  393. <tbody valign="top">
  394. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>image</strong> – 3D RGB image Numpy array or PIL RGB image</td>
  395. </tr>
  396. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">2D Numpy array with MSCN information</td>
  397. </tr>
  398. </tbody>
  399. </table>
  400. <p>Example:</p>
  401. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">PIL</span> <span class="k">import</span> <span class="n">Image</span>
  402. <span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">ipfml</span> <span class="k">import</span> <span class="n">processing</span>
  403. <span class="gp">&gt;&gt;&gt; </span><span class="n">img</span> <span class="o">=</span> <span class="n">Image</span><span class="o">.</span><span class="n">open</span><span class="p">(</span><span class="s1">&#39;./images/test_img.png&#39;</span><span class="p">)</span>
  404. <span class="gp">&gt;&gt;&gt; </span><span class="n">img_mscn</span> <span class="o">=</span> <span class="n">processing</span><span class="o">.</span><span class="n">rgb_to_mscn</span><span class="p">(</span><span class="n">img</span><span class="p">)</span>
  405. <span class="gp">&gt;&gt;&gt; </span><span class="n">img_mscn</span><span class="o">.</span><span class="n">shape</span>
  406. <span class="go">(200, 200)</span>
  407. </pre></div>
  408. </div>
  409. </dd></dl>
  410. <dl class="function">
  411. <dt id="ipfml.processing.rotate_image">
  412. <code class="descclassname">ipfml.processing.</code><code class="descname">rotate_image</code><span class="sig-paren">(</span><em>image</em>, <em>angle=90</em>, <em>pil=True</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/ipfml/processing.html#rotate_image"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#ipfml.processing.rotate_image" title="Permalink to this definition">¶</a></dt>
  413. <dd><p>Rotate image using specific angle</p>
  414. <table class="docutils field-list" frame="void" rules="none">
  415. <col class="field-name" />
  416. <col class="field-body" />
  417. <tbody valign="top">
  418. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
  419. <li><strong>image</strong> – PIL Image or Numpy array</li>
  420. <li><strong>angle</strong> – Angle value of the rotation</li>
  421. <li><strong>pil</strong> – block type returned as PIL Image (default True)</li>
  422. </ul>
  423. </td>
  424. </tr>
  425. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">Image with rotation applied</p>
  426. </td>
  427. </tr>
  428. </tbody>
  429. </table>
  430. <p>Example:</p>
  431. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">PIL</span> <span class="k">import</span> <span class="n">Image</span>
  432. <span class="gp">&gt;&gt;&gt; </span><span class="kn">import</span> <span class="nn">numpy</span> <span class="k">as</span> <span class="nn">np</span>
  433. <span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">ipfml</span> <span class="k">import</span> <span class="n">processing</span>
  434. <span class="gp">&gt;&gt;&gt; </span><span class="n">image_values</span> <span class="o">=</span> <span class="n">Image</span><span class="o">.</span><span class="n">open</span><span class="p">(</span><span class="s1">&#39;./images/test_img.png&#39;</span><span class="p">)</span>
  435. <span class="gp">&gt;&gt;&gt; </span><span class="n">rotated_image</span> <span class="o">=</span> <span class="n">processing</span><span class="o">.</span><span class="n">rotate_image</span><span class="p">(</span><span class="n">image_values</span><span class="p">,</span> <span class="mi">90</span><span class="p">,</span> <span class="n">pil</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span>
  436. <span class="gp">&gt;&gt;&gt; </span><span class="n">rotated_image</span><span class="o">.</span><span class="n">shape</span>
  437. <span class="go">(200, 200, 3)</span>
  438. </pre></div>
  439. </div>
  440. </dd></dl>
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  471. </script>
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  473. </html>