<!DOCTYPE html> <!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]--> <!--[if gt IE 8]><!--> <html class="no-js" lang="en" > <!--<![endif]--> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>ImageMorph Module — Pillow (PIL Fork) 5.4.1 documentation</title> <script type="text/javascript" src="../_static/js/modernizr.min.js"></script> <script type="text/javascript" id="documentation_options" data-url_root="../" src="../_static/documentation_options.js"></script> <script type="text/javascript" src="../_static/jquery.js"></script> <script type="text/javascript" src="../_static/underscore.js"></script> <script type="text/javascript" src="../_static/doctools.js"></script> <script type="text/javascript" src="../_static/language_data.js"></script> <script type="text/javascript" src="../_static/js/script.js"></script> <script type="text/javascript" src="../_static/js/theme.js"></script> <link rel="stylesheet" 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Module</a></li> <li class="toctree-l2"><a class="reference internal" href="../PIL.html">PIL Package (autodoc of remaining modules)</a></li> <li class="toctree-l2"><a class="reference internal" href="plugins.html">Plugin reference</a></li> <li class="toctree-l2"><a class="reference internal" href="internal_design.html">Internal Reference Docs</a></li> </ul> </li> <li class="toctree-l1"><a class="reference internal" href="../porting.html">Porting</a></li> <li class="toctree-l1"><a class="reference internal" href="../about.html">About</a></li> <li class="toctree-l1"><a class="reference internal" href="../releasenotes/index.html">Release Notes</a></li> <li class="toctree-l1"><a class="reference internal" href="../deprecations.html">Deprecations and removals</a></li> </ul> </div> </div> </nav> <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap"> <nav class="wy-nav-top" aria-label="top navigation"> <i data-toggle="wy-nav-top" class="fa fa-bars"></i> <a href="../index.html">Pillow (PIL Fork)</a> </nav> <div class="wy-nav-content"> <div class="rst-content"> <div role="navigation" aria-label="breadcrumbs navigation"> <ul class="wy-breadcrumbs"> <li><a href="../index.html">Docs</a> »</li> <li><a href="index.html">Reference</a> »</li> <li><code class="docutils literal notranslate"><span class="pre">ImageMorph</span></code> Module</li> <li class="wy-breadcrumbs-aside"> <a href="../_sources/reference/ImageMorph.rst.txt" rel="nofollow"> View page source</a> </li> </ul> <hr/> </div> <div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article"> <div itemprop="articleBody"> <span class="target" id="module-PIL.ImageMorph"></span><div class="section" id="imagemorph-module"> <h1><code class="xref py py-mod docutils literal notranslate"><span class="pre">ImageMorph</span></code> Module<a class="headerlink" href="#imagemorph-module" title="Permalink to this headline">¶</a></h1> <p>The <code class="xref py py-mod docutils literal notranslate"><span class="pre">ImageMorph</span></code> module provides morphology operations on images.</p> <dl class="class"> <dt> <em class="property">class </em><code class="descclassname">PIL.ImageMorph.</code><code class="descname">LutBuilder</code><span class="sig-paren">(</span><em>patterns=None</em>, <em>op_name=None</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/PIL/ImageMorph.html#LutBuilder"><span class="viewcode-link">[source]</span></a></dt> <dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">object</span></code></p> <p>A class for building a MorphLut from a descriptive language</p> <p>The input patterns is a list of a strings sequences like these:</p> <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="mi">4</span><span class="p">:(</span><span class="o">...</span> <span class="o">.</span><span class="mf">1.</span> <span class="mi">111</span><span class="p">)</span><span class="o">-></span><span class="mi">1</span> </pre></div> </div> <p>(whitespaces including linebreaks are ignored). The option 4 describes a series of symmetry operations (in this case a 4-rotation), the pattern is described by:</p> <ul class="simple"> <li>. or X - Ignore</li> <li>1 - Pixel is on</li> <li>0 - Pixel is off</li> </ul> <p>The result of the operation is described after “->” string.</p> <p>The default is to return the current pixel value, which is returned if no other match is found.</p> <p>Operations:</p> <ul class="simple"> <li>4 - 4 way rotation</li> <li>N - Negate</li> <li>1 - Dummy op for no other operation (an op must always be given)</li> <li>M - Mirroring</li> </ul> <p>Example:</p> <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">lb</span> <span class="o">=</span> <span class="n">LutBuilder</span><span class="p">(</span><span class="n">patterns</span> <span class="o">=</span> <span class="p">[</span><span class="s2">"4:(... .1. 111)->1"</span><span class="p">])</span> <span class="n">lut</span> <span class="o">=</span> <span class="n">lb</span><span class="o">.</span><span class="n">build_lut</span><span class="p">()</span> </pre></div> </div> <dl class="method"> <dt> <code class="descname">add_patterns</code><span class="sig-paren">(</span><em>patterns</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/PIL/ImageMorph.html#LutBuilder.add_patterns"><span class="viewcode-link">[source]</span></a></dt> <dd></dd></dl> <dl class="method"> <dt> <code class="descname">build_default_lut</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="../_modules/PIL/ImageMorph.html#LutBuilder.build_default_lut"><span class="viewcode-link">[source]</span></a></dt> <dd></dd></dl> <dl class="method"> <dt> <code class="descname">build_lut</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="../_modules/PIL/ImageMorph.html#LutBuilder.build_lut"><span class="viewcode-link">[source]</span></a></dt> <dd><p>Compile all patterns into a morphology lut.</p> <p>TBD :Build based on (file) morphlut:modify_lut</p> </dd></dl> <dl class="method"> <dt> <code class="descname">get_lut</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="../_modules/PIL/ImageMorph.html#LutBuilder.get_lut"><span class="viewcode-link">[source]</span></a></dt> <dd></dd></dl> </dd></dl> <dl class="class"> <dt> <em class="property">class </em><code class="descclassname">PIL.ImageMorph.</code><code class="descname">MorphOp</code><span class="sig-paren">(</span><em>lut=None</em>, <em>op_name=None</em>, <em>patterns=None</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/PIL/ImageMorph.html#MorphOp"><span class="viewcode-link">[source]</span></a></dt> <dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">object</span></code></p> <p>A class for binary morphological operators</p> <dl class="method"> <dt> <code class="descname">apply</code><span class="sig-paren">(</span><em>image</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/PIL/ImageMorph.html#MorphOp.apply"><span class="viewcode-link">[source]</span></a></dt> <dd><p>Run a single morphological operation on an image</p> <p>Returns a tuple of the number of changed pixels and the morphed image</p> </dd></dl> <dl class="method"> <dt> <code class="descname">get_on_pixels</code><span class="sig-paren">(</span><em>image</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/PIL/ImageMorph.html#MorphOp.get_on_pixels"><span class="viewcode-link">[source]</span></a></dt> <dd><p>Get a list of all turned on pixels in a binary image</p> <p>Returns a list of tuples of (x,y) coordinates of all matching pixels. See <a class="reference internal" href="../handbook/concepts.html#coordinate-system"><span class="std std-ref">Coordinate System</span></a>.</p> </dd></dl> <dl class="method"> <dt> <code class="descname">load_lut</code><span class="sig-paren">(</span><em>filename</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/PIL/ImageMorph.html#MorphOp.load_lut"><span class="viewcode-link">[source]</span></a></dt> <dd><p>Load an operator from an mrl file</p> </dd></dl> <dl class="method"> <dt> <code class="descname">match</code><span class="sig-paren">(</span><em>image</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/PIL/ImageMorph.html#MorphOp.match"><span class="viewcode-link">[source]</span></a></dt> <dd><p>Get a list of coordinates matching the morphological operation on an image.</p> <p>Returns a list of tuples of (x,y) coordinates of all matching pixels. See <a class="reference internal" href="../handbook/concepts.html#coordinate-system"><span class="std std-ref">Coordinate System</span></a>.</p> </dd></dl> <dl class="method"> <dt> <code class="descname">save_lut</code><span class="sig-paren">(</span><em>filename</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/PIL/ImageMorph.html#MorphOp.save_lut"><span class="viewcode-link">[source]</span></a></dt> <dd><p>Save an operator to an mrl file</p> </dd></dl> <dl class="method"> <dt> <code class="descname">set_lut</code><span class="sig-paren">(</span><em>lut</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/PIL/ImageMorph.html#MorphOp.set_lut"><span class="viewcode-link">[source]</span></a></dt> <dd><p>Set the lut from an external source</p> </dd></dl> </dd></dl> </div> </div> </div> <footer> <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation"> <a href="ImageOps.html" class="btn btn-neutral float-right" title="ImageOps Module" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right"></span></a> <a href="ImageMath.html" class="btn btn-neutral float-left" title="ImageMath Module" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left"></span> Previous</a> </div> <hr/> <div role="contentinfo"> <p> © Copyright 1995-2011 Fredrik Lundh, 2010-2018 Alex Clark and Contributors </p> </div> Built with <a href="http://sphinx-doc.org/">Sphinx</a> using a <a href="https://github.com/rtfd/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>. </footer> </div> </div> </section> </div> <script type="text/javascript"> jQuery(function () { SphinxRtdTheme.Navigation.enable(true); }); </script> </body> </html>