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<h1>Source code for PIL.ImageFilter</h1><div class="highlight"><pre>
<span class="c">#</span>
<span class="c"># The Python Imaging Library.</span>
<span class="c"># $Id$</span>
<span class="c">#</span>
<span class="c"># standard filters</span>
<span class="c">#</span>
<span class="c"># History:</span>
<span class="c"># 1995-11-27 fl Created</span>
<span class="c"># 2002-06-08 fl Added rank and mode filters</span>
<span class="c"># 2003-09-15 fl Fixed rank calculation in rank filter; added expand call</span>
<span class="c">#</span>
<span class="c"># Copyright (c) 1997-2003 by Secret Labs AB.</span>
<span class="c"># Copyright (c) 1995-2002 by Fredrik Lundh.</span>
<span class="c">#</span>
<span class="c"># See the README file for information on usage and redistribution.</span>
<span class="c">#</span>
<span class="kn">from</span> <span class="nn">functools</span> <span class="kn">import</span> <span class="nb">reduce</span>
<div class="viewcode-block" id="Filter"><a class="viewcode-back" href="../../PIL.html#PIL.ImageFilter.Filter">[docs]</a><span class="k">class</span> <span class="nc">Filter</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span>
<span class="k">pass</span>
<span class="c">##</span>
<span class="c"># Convolution filter kernel.</span>
</div>
<div class="viewcode-block" id="Kernel"><a class="viewcode-back" href="../../PIL.html#PIL.ImageFilter.Kernel">[docs]</a><span class="k">class</span> <span class="nc">Kernel</span><span class="p">(</span><span class="n">Filter</span><span class="p">):</span>
<span class="c">##</span>
<span class="c"># Create a convolution kernel. The current version only</span>
<span class="c"># supports 3x3 and 5x5 integer and floating point kernels.</span>
<span class="c"># <p></span>
<span class="c"># In the current version, kernels can only be applied to</span>
<span class="c"># "L" and "RGB" images.</span>
<span class="c">#</span>
<span class="c"># @def __init__(size, kernel, **options)</span>
<span class="c"># @param size Kernel size, given as (width, height). In</span>
<span class="c"># the current version, this must be (3,3) or (5,5).</span>
<span class="c"># @param kernel A sequence containing kernel weights.</span>
<span class="c"># @param **options Optional keyword arguments.</span>
<span class="c"># @keyparam scale Scale factor. If given, the result for each</span>
<span class="c"># pixel is divided by this value. The default is the sum</span>
<span class="c"># of the kernel weights.</span>
<span class="c"># @keyparam offset Offset. If given, this value is added to the</span>
<span class="c"># result, after it has been divided by the scale factor.</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">size</span><span class="p">,</span> <span class="n">kernel</span><span class="p">,</span> <span class="n">scale</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">offset</span><span class="o">=</span><span class="mi">0</span><span class="p">):</span>
<span class="k">if</span> <span class="n">scale</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="c"># default scale is sum of kernel</span>
<span class="n">scale</span> <span class="o">=</span> <span class="nb">reduce</span><span class="p">(</span><span class="k">lambda</span> <span class="n">a</span><span class="p">,</span><span class="n">b</span><span class="p">:</span> <span class="n">a</span><span class="o">+</span><span class="n">b</span><span class="p">,</span> <span class="n">kernel</span><span class="p">)</span>
<span class="k">if</span> <span class="n">size</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">*</span> <span class="n">size</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">!=</span> <span class="nb">len</span><span class="p">(</span><span class="n">kernel</span><span class="p">):</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s">"not enough coefficients in kernel"</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">filterargs</span> <span class="o">=</span> <span class="n">size</span><span class="p">,</span> <span class="n">scale</span><span class="p">,</span> <span class="n">offset</span><span class="p">,</span> <span class="n">kernel</span>
<div class="viewcode-block" id="Kernel.filter"><a class="viewcode-back" href="../../PIL.html#PIL.ImageFilter.Kernel.filter">[docs]</a> <span class="k">def</span> <span class="nf">filter</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">image</span><span class="p">):</span>
<span class="k">if</span> <span class="n">image</span><span class="o">.</span><span class="n">mode</span> <span class="o">==</span> <span class="s">"P"</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s">"cannot filter palette images"</span><span class="p">)</span>
<span class="k">return</span> <span class="n">image</span><span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="o">*</span><span class="bp">self</span><span class="o">.</span><span class="n">filterargs</span><span class="p">)</span>
</div></div>
<div class="viewcode-block" id="BuiltinFilter"><a class="viewcode-back" href="../../PIL.html#PIL.ImageFilter.BuiltinFilter">[docs]</a><span class="k">class</span> <span class="nc">BuiltinFilter</span><span class="p">(</span><span class="n">Kernel</span><span class="p">):</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">pass</span>
<span class="c">##</span>
<span class="c"># Rank filter.</span>
</div>
<div class="viewcode-block" id="RankFilter"><a class="viewcode-back" href="../../PIL.html#PIL.ImageFilter.RankFilter">[docs]</a><span class="k">class</span> <span class="nc">RankFilter</span><span class="p">(</span><span class="n">Filter</span><span class="p">):</span>
<span class="n">name</span> <span class="o">=</span> <span class="s">"Rank"</span>
<span class="c">##</span>
<span class="c"># Create a rank filter. The rank filter sorts all pixels in</span>
<span class="c"># a window of the given size, and returns the rank'th value.</span>
<span class="c">#</span>
<span class="c"># @param size The kernel size, in pixels.</span>
<span class="c"># @param rank What pixel value to pick. Use 0 for a min filter,</span>
<span class="c"># size*size/2 for a median filter, size*size-1 for a max filter,</span>
<span class="c"># etc.</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">size</span><span class="p">,</span> <span class="n">rank</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">size</span> <span class="o">=</span> <span class="n">size</span>
<span class="bp">self</span><span class="o">.</span><span class="n">rank</span> <span class="o">=</span> <span class="n">rank</span>
<div class="viewcode-block" id="RankFilter.filter"><a class="viewcode-back" href="../../PIL.html#PIL.ImageFilter.RankFilter.filter">[docs]</a> <span class="k">def</span> <span class="nf">filter</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">image</span><span class="p">):</span>
<span class="k">if</span> <span class="n">image</span><span class="o">.</span><span class="n">mode</span> <span class="o">==</span> <span class="s">"P"</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s">"cannot filter palette images"</span><span class="p">)</span>
<span class="n">image</span> <span class="o">=</span> <span class="n">image</span><span class="o">.</span><span class="n">expand</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">size</span><span class="o">//</span><span class="mi">2</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">size</span><span class="o">//</span><span class="mi">2</span><span class="p">)</span>
<span class="k">return</span> <span class="n">image</span><span class="o">.</span><span class="n">rankfilter</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">size</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">rank</span><span class="p">)</span>
<span class="c">##</span>
<span class="c"># Median filter. Picks the median pixel value in a window with the</span>
<span class="c"># given size.</span>
</div></div>
<div class="viewcode-block" id="MedianFilter"><a class="viewcode-back" href="../../PIL.html#PIL.ImageFilter.MedianFilter">[docs]</a><span class="k">class</span> <span class="nc">MedianFilter</span><span class="p">(</span><span class="n">RankFilter</span><span class="p">):</span>
<span class="n">name</span> <span class="o">=</span> <span class="s">"Median"</span>
<span class="c">##</span>
<span class="c"># Create a median filter.</span>
<span class="c">#</span>
<span class="c"># @param size The kernel size, in pixels.</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">size</span><span class="o">=</span><span class="mi">3</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">size</span> <span class="o">=</span> <span class="n">size</span>
<span class="bp">self</span><span class="o">.</span><span class="n">rank</span> <span class="o">=</span> <span class="n">size</span><span class="o">*</span><span class="n">size</span><span class="o">//</span><span class="mi">2</span>
<span class="c">##</span>
<span class="c"># Min filter. Picks the lowest pixel value in a window with the given</span>
<span class="c"># size.</span>
</div>
<div class="viewcode-block" id="MinFilter"><a class="viewcode-back" href="../../PIL.html#PIL.ImageFilter.MinFilter">[docs]</a><span class="k">class</span> <span class="nc">MinFilter</span><span class="p">(</span><span class="n">RankFilter</span><span class="p">):</span>
<span class="n">name</span> <span class="o">=</span> <span class="s">"Min"</span>
<span class="c">##</span>
<span class="c"># Create a min filter.</span>
<span class="c">#</span>
<span class="c"># @param size The kernel size, in pixels.</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">size</span><span class="o">=</span><span class="mi">3</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">size</span> <span class="o">=</span> <span class="n">size</span>
<span class="bp">self</span><span class="o">.</span><span class="n">rank</span> <span class="o">=</span> <span class="mi">0</span>
<span class="c">##</span>
<span class="c"># Max filter. Picks the largest pixel value in a window with the</span>
<span class="c"># given size.</span>
</div>
<div class="viewcode-block" id="MaxFilter"><a class="viewcode-back" href="../../PIL.html#PIL.ImageFilter.MaxFilter">[docs]</a><span class="k">class</span> <span class="nc">MaxFilter</span><span class="p">(</span><span class="n">RankFilter</span><span class="p">):</span>
<span class="n">name</span> <span class="o">=</span> <span class="s">"Max"</span>
<span class="c">##</span>
<span class="c"># Create a max filter.</span>
<span class="c">#</span>
<span class="c"># @param size The kernel size, in pixels.</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">size</span><span class="o">=</span><span class="mi">3</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">size</span> <span class="o">=</span> <span class="n">size</span>
<span class="bp">self</span><span class="o">.</span><span class="n">rank</span> <span class="o">=</span> <span class="n">size</span><span class="o">*</span><span class="n">size</span><span class="o">-</span><span class="mi">1</span>
<span class="c">##</span>
<span class="c"># Mode filter. Picks the most frequent pixel value in a box with the</span>
<span class="c"># given size. Pixel values that occur only once or twice are ignored;</span>
<span class="c"># if no pixel value occurs more than twice, the original pixel value</span>
<span class="c"># is preserved.</span>
</div>
<div class="viewcode-block" id="ModeFilter"><a class="viewcode-back" href="../../PIL.html#PIL.ImageFilter.ModeFilter">[docs]</a><span class="k">class</span> <span class="nc">ModeFilter</span><span class="p">(</span><span class="n">Filter</span><span class="p">):</span>
<span class="n">name</span> <span class="o">=</span> <span class="s">"Mode"</span>
<span class="c">##</span>
<span class="c"># Create a mode filter.</span>
<span class="c">#</span>
<span class="c"># @param size The kernel size, in pixels.</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">size</span><span class="o">=</span><span class="mi">3</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">size</span> <span class="o">=</span> <span class="n">size</span>
<div class="viewcode-block" id="ModeFilter.filter"><a class="viewcode-back" href="../../PIL.html#PIL.ImageFilter.ModeFilter.filter">[docs]</a> <span class="k">def</span> <span class="nf">filter</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">image</span><span class="p">):</span>
<span class="k">return</span> <span class="n">image</span><span class="o">.</span><span class="n">modefilter</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">size</span><span class="p">)</span>
<span class="c">##</span>
<span class="c"># Gaussian blur filter.</span>
</div></div>
<div class="viewcode-block" id="GaussianBlur"><a class="viewcode-back" href="../../PIL.html#PIL.ImageFilter.GaussianBlur">[docs]</a><span class="k">class</span> <span class="nc">GaussianBlur</span><span class="p">(</span><span class="n">Filter</span><span class="p">):</span>
<span class="n">name</span> <span class="o">=</span> <span class="s">"GaussianBlur"</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">radius</span><span class="o">=</span><span class="mi">2</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">radius</span> <span class="o">=</span> <span class="n">radius</span>
<div class="viewcode-block" id="GaussianBlur.filter"><a class="viewcode-back" href="../../PIL.html#PIL.ImageFilter.GaussianBlur.filter">[docs]</a> <span class="k">def</span> <span class="nf">filter</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">image</span><span class="p">):</span>
<span class="k">return</span> <span class="n">image</span><span class="o">.</span><span class="n">gaussian_blur</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">radius</span><span class="p">)</span>
<span class="c">##</span>
<span class="c"># Unsharp mask filter.</span>
</div></div>
<div class="viewcode-block" id="UnsharpMask"><a class="viewcode-back" href="../../PIL.html#PIL.ImageFilter.UnsharpMask">[docs]</a><span class="k">class</span> <span class="nc">UnsharpMask</span><span class="p">(</span><span class="n">Filter</span><span class="p">):</span>
<span class="n">name</span> <span class="o">=</span> <span class="s">"UnsharpMask"</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">radius</span><span class="o">=</span><span class="mi">2</span><span class="p">,</span> <span class="n">percent</span><span class="o">=</span><span class="mi">150</span><span class="p">,</span> <span class="n">threshold</span><span class="o">=</span><span class="mi">3</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">radius</span> <span class="o">=</span> <span class="n">radius</span>
<span class="bp">self</span><span class="o">.</span><span class="n">percent</span> <span class="o">=</span> <span class="n">percent</span>
<span class="bp">self</span><span class="o">.</span><span class="n">threshold</span> <span class="o">=</span> <span class="n">threshold</span>
<div class="viewcode-block" id="UnsharpMask.filter"><a class="viewcode-back" href="../../PIL.html#PIL.ImageFilter.UnsharpMask.filter">[docs]</a> <span class="k">def</span> <span class="nf">filter</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">image</span><span class="p">):</span>
<span class="k">return</span> <span class="n">image</span><span class="o">.</span><span class="n">unsharp_mask</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">radius</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">percent</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">threshold</span><span class="p">)</span>
<span class="c">##</span>
<span class="c"># Simple blur filter.</span>
</div></div>
<div class="viewcode-block" id="BLUR"><a class="viewcode-back" href="../../PIL.html#PIL.ImageFilter.BLUR">[docs]</a><span class="k">class</span> <span class="nc">BLUR</span><span class="p">(</span><span class="n">BuiltinFilter</span><span class="p">):</span>
<span class="n">name</span> <span class="o">=</span> <span class="s">"Blur"</span>
<span class="n">filterargs</span> <span class="o">=</span> <span class="p">(</span><span class="mi">5</span><span class="p">,</span> <span class="mi">5</span><span class="p">),</span> <span class="mi">16</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="p">(</span>
<span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span>
<span class="mi">1</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span>
<span class="mi">1</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span>
<span class="mi">1</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span>
<span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span>
<span class="p">)</span>
<span class="c">##</span>
<span class="c"># Simple contour filter.</span>
</div>
<div class="viewcode-block" id="CONTOUR"><a class="viewcode-back" href="../../PIL.html#PIL.ImageFilter.CONTOUR">[docs]</a><span class="k">class</span> <span class="nc">CONTOUR</span><span class="p">(</span><span class="n">BuiltinFilter</span><span class="p">):</span>
<span class="n">name</span> <span class="o">=</span> <span class="s">"Contour"</span>
<span class="n">filterargs</span> <span class="o">=</span> <span class="p">(</span><span class="mi">3</span><span class="p">,</span> <span class="mi">3</span><span class="p">),</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">255</span><span class="p">,</span> <span class="p">(</span>
<span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span>
<span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="mi">8</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span>
<span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span>
<span class="p">)</span>
<span class="c">##</span>
<span class="c"># Simple detail filter.</span>
</div>
<div class="viewcode-block" id="DETAIL"><a class="viewcode-back" href="../../PIL.html#PIL.ImageFilter.DETAIL">[docs]</a><span class="k">class</span> <span class="nc">DETAIL</span><span class="p">(</span><span class="n">BuiltinFilter</span><span class="p">):</span>
<span class="n">name</span> <span class="o">=</span> <span class="s">"Detail"</span>
<span class="n">filterargs</span> <span class="o">=</span> <span class="p">(</span><span class="mi">3</span><span class="p">,</span> <span class="mi">3</span><span class="p">),</span> <span class="mi">6</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="p">(</span>
<span class="mi">0</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span>
<span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="mi">10</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span>
<span class="mi">0</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="mi">0</span>
<span class="p">)</span>
<span class="c">##</span>
<span class="c"># Simple edge enhancement filter.</span>
</div>
<div class="viewcode-block" id="EDGE_ENHANCE"><a class="viewcode-back" href="../../PIL.html#PIL.ImageFilter.EDGE_ENHANCE">[docs]</a><span class="k">class</span> <span class="nc">EDGE_ENHANCE</span><span class="p">(</span><span class="n">BuiltinFilter</span><span class="p">):</span>
<span class="n">name</span> <span class="o">=</span> <span class="s">"Edge-enhance"</span>
<span class="n">filterargs</span> <span class="o">=</span> <span class="p">(</span><span class="mi">3</span><span class="p">,</span> <span class="mi">3</span><span class="p">),</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="p">(</span>
<span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span>
<span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="mi">10</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span>
<span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span>
<span class="p">)</span>
<span class="c">##</span>
<span class="c"># Simple stronger edge enhancement filter.</span>
</div>
<div class="viewcode-block" id="EDGE_ENHANCE_MORE"><a class="viewcode-back" href="../../PIL.html#PIL.ImageFilter.EDGE_ENHANCE_MORE">[docs]</a><span class="k">class</span> <span class="nc">EDGE_ENHANCE_MORE</span><span class="p">(</span><span class="n">BuiltinFilter</span><span class="p">):</span>
<span class="n">name</span> <span class="o">=</span> <span class="s">"Edge-enhance More"</span>
<span class="n">filterargs</span> <span class="o">=</span> <span class="p">(</span><span class="mi">3</span><span class="p">,</span> <span class="mi">3</span><span class="p">),</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="p">(</span>
<span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span>
<span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="mi">9</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span>
<span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span>
<span class="p">)</span>
<span class="c">##</span>
<span class="c"># Simple embossing filter.</span>
</div>
<div class="viewcode-block" id="EMBOSS"><a class="viewcode-back" href="../../PIL.html#PIL.ImageFilter.EMBOSS">[docs]</a><span class="k">class</span> <span class="nc">EMBOSS</span><span class="p">(</span><span class="n">BuiltinFilter</span><span class="p">):</span>
<span class="n">name</span> <span class="o">=</span> <span class="s">"Emboss"</span>
<span class="n">filterargs</span> <span class="o">=</span> <span class="p">(</span><span class="mi">3</span><span class="p">,</span> <span class="mi">3</span><span class="p">),</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">128</span><span class="p">,</span> <span class="p">(</span>
<span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span>
<span class="mi">0</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span>
<span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span>
<span class="p">)</span>
<span class="c">##</span>
<span class="c"># Simple edge-finding filter.</span>
</div>
<div class="viewcode-block" id="FIND_EDGES"><a class="viewcode-back" href="../../PIL.html#PIL.ImageFilter.FIND_EDGES">[docs]</a><span class="k">class</span> <span class="nc">FIND_EDGES</span><span class="p">(</span><span class="n">BuiltinFilter</span><span class="p">):</span>
<span class="n">name</span> <span class="o">=</span> <span class="s">"Find Edges"</span>
<span class="n">filterargs</span> <span class="o">=</span> <span class="p">(</span><span class="mi">3</span><span class="p">,</span> <span class="mi">3</span><span class="p">),</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="p">(</span>
<span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span>
<span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="mi">8</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span>
<span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span>
<span class="p">)</span>
<span class="c">##</span>
<span class="c"># Simple smoothing filter.</span>
</div>
<div class="viewcode-block" id="SMOOTH"><a class="viewcode-back" href="../../PIL.html#PIL.ImageFilter.SMOOTH">[docs]</a><span class="k">class</span> <span class="nc">SMOOTH</span><span class="p">(</span><span class="n">BuiltinFilter</span><span class="p">):</span>
<span class="n">name</span> <span class="o">=</span> <span class="s">"Smooth"</span>
<span class="n">filterargs</span> <span class="o">=</span> <span class="p">(</span><span class="mi">3</span><span class="p">,</span> <span class="mi">3</span><span class="p">),</span> <span class="mi">13</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="p">(</span>
<span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span>
<span class="mi">1</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span>
<span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span>
<span class="p">)</span>
<span class="c">##</span>
<span class="c"># Simple stronger smoothing filter.</span>
</div>
<div class="viewcode-block" id="SMOOTH_MORE"><a class="viewcode-back" href="../../PIL.html#PIL.ImageFilter.SMOOTH_MORE">[docs]</a><span class="k">class</span> <span class="nc">SMOOTH_MORE</span><span class="p">(</span><span class="n">BuiltinFilter</span><span class="p">):</span>
<span class="n">name</span> <span class="o">=</span> <span class="s">"Smooth More"</span>
<span class="n">filterargs</span> <span class="o">=</span> <span class="p">(</span><span class="mi">5</span><span class="p">,</span> <span class="mi">5</span><span class="p">),</span> <span class="mi">100</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="p">(</span>
<span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span>
<span class="mi">1</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span>
<span class="mi">1</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">44</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span>
<span class="mi">1</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span>
<span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span>
<span class="p">)</span>
<span class="c">##</span>
<span class="c"># Simple sharpening filter.</span>
</div>
<div class="viewcode-block" id="SHARPEN"><a class="viewcode-back" href="../../PIL.html#PIL.ImageFilter.SHARPEN">[docs]</a><span class="k">class</span> <span class="nc">SHARPEN</span><span class="p">(</span><span class="n">BuiltinFilter</span><span class="p">):</span>
<span class="n">name</span> <span class="o">=</span> <span class="s">"Sharpen"</span>
<span class="n">filterargs</span> <span class="o">=</span> <span class="p">(</span><span class="mi">3</span><span class="p">,</span> <span class="mi">3</span><span class="p">),</span> <span class="mi">16</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="p">(</span>
<span class="o">-</span><span class="mi">2</span><span class="p">,</span> <span class="o">-</span><span class="mi">2</span><span class="p">,</span> <span class="o">-</span><span class="mi">2</span><span class="p">,</span>
<span class="o">-</span><span class="mi">2</span><span class="p">,</span> <span class="mi">32</span><span class="p">,</span> <span class="o">-</span><span class="mi">2</span><span class="p">,</span>
<span class="o">-</span><span class="mi">2</span><span class="p">,</span> <span class="o">-</span><span class="mi">2</span><span class="p">,</span> <span class="o">-</span><span class="mi">2</span>
<span class="p">)</span></div>
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distrib
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Mageia
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4
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x86_64
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media
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core-updates
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by-pkgid
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1b8cdcd72f762d0ed6f2f33d2c69f0d6
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42
