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<div class="title">Algorithms and Utility Functions<div class="ingroups"><a class="el" href="group___pixel_based.html">PixelBased</a></div></div>  </div>
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<p>PixelBased algorithms, metafunctions and utility functions.  
<a href="#details">More...</a></p>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structboost_1_1gil_1_1num__channels.html">num_channels&lt; PixelBased &gt;</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns the number of channels of a pixel-based GIL construct.  <a href="structboost_1_1gil_1_1num__channels.html#details">More...</a><br /></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<p>PixelBased algorithms, metafunctions and utility functions. </p>
<p>Example: </p><div class="fragment"><div class="line">static_assert(num_channels&lt;rgb8_view_t&gt;::value == 3, <span class="stringliteral">&quot;&quot;</span>);</div><div class="line">static_assert(num_channels&lt;cmyk16_planar_ptr_t&gt;::value == 4, <span class="stringliteral">&quot;&quot;</span>);</div><div class="line"></div><div class="line">static_assert(is_planar&lt;rgb16_planar_image_t&gt;::value));</div><div class="line">static_assert(std::is_same&lt;color_space_type&lt;rgb8_planar_ref_t&gt;::type, rgb_t&gt;::value, <span class="stringliteral">&quot;&quot;</span>);</div><div class="line">static_assert(std::is_same&lt;channel_mapping_type&lt;cmyk8_pixel_t&gt;::type,</div><div class="line">                             channel_mapping_type&lt;rgba8_pixel_t&gt;::type&gt;::value, <span class="stringliteral">&quot;&quot;</span>);</div><div class="line">static_assert(std::is_same&lt;channel_type&lt;bgr8_pixel_t&gt;::type, uint8_t&gt;::value, <span class="stringliteral">&quot;&quot;</span>);</div></div><!-- fragment --> </div><!-- contents -->
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