ImageMagick/api/attribute.html

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<p class="text-center"><a href="attribute.php#GetImageDepth">GetImageDepth</a> &bull; <a href="attribute.php#GetImageQuantumDepth">GetImageQuantumDepth</a> &bull; <a href="attribute.php#GetImageType">GetImageType</a> &bull; <a href="attribute.php#IdentifyImageGray">IdentifyImageGray</a> &bull; <a href="attribute.php#IdentifyImageMonochrome">IdentifyImageMonochrome</a> &bull; <a href="attribute.php#IdentifyImageType">IdentifyImageType</a> &bull; <a href="attribute.php#IsImageGray">IsImageGray</a> &bull; <a href="attribute.php#IsImageMonochrome">IsImageMonochrome</a> &bull; <a href="attribute.php#IsImageOpaque">IsImageOpaque</a> &bull; <a href="attribute.php#SetImageDepth">SetImageDepth</a> &bull; <a href="attribute.php#SetImageType">SetImageType</a></p>

<h2><a href="http://www.imagemagick.org/api/MagickCore/attribute_8c.html" id="GetImageDepth">GetImageDepth</a></h2>

<p>GetImageDepth() returns the depth of a particular image channel.</p>

<p>The format of the GetImageDepth method is:</p>

<pre class="text">
size_t GetImageDepth(const Image *image,ExceptionInfo *exception)
</pre>

<p>A description of each parameter follows:</p>

<dd>
</dd>

<dd> </dd>
<dl class="dl-horizontal">
<dt>image</dt>
<dd>the image. </dd>

<dd> </dd>
<dt>exception</dt>
<dd>return any errors or warnings in this structure. </dd>

<dd>  </dd>
</dl>
<h2><a href="http://www.imagemagick.org/api/MagickCore/attribute_8c.html" id="GetImageQuantumDepth">GetImageQuantumDepth</a></h2>

<p>GetImageQuantumDepth() returns the depth of the image rounded to a legal quantum depth: 8, 16, or 32.</p>

<p>The format of the GetImageQuantumDepth method is:</p>

<pre class="text">
size_t GetImageQuantumDepth(const Image *image,
  const MagickBooleanType constrain)
</pre>

<p>A description of each parameter follows:</p>

<dd>
</dd>

<dd> </dd>
<dl class="dl-horizontal">
<dt>image</dt>
<dd>the image. </dd>

<dd> </dd>
<dt>constrain</dt>
<dd>A value other than MagickFalse, constrains the depth to a maximum of MAGICKCORE_QUANTUM_DEPTH. </dd>

<dd>  </dd>
</dl>
<h2><a href="http://www.imagemagick.org/api/MagickCore/attribute_8c.html" id="GetImageType">GetImageType</a></h2>

<p>GetImageType() returns the type of image:</p>

<p>Bilevel         Grayscale        GrayscaleMatte Palette         PaletteMatte     TrueColor TrueColorMatte  ColorSeparation  ColorSeparationMatte</p>

<p>The format of the GetImageType method is:</p>

<pre class="text">
ImageType GetImageType(const Image *image)
</pre>

<p>A description of each parameter follows:</p>

<dd>
</dd>

<dd> </dd>
<dl class="dl-horizontal">
<dt>image</dt>
<dd>the image. </dd>

<dd>  </dd>
</dl>
<h2><a href="http://www.imagemagick.org/api/MagickCore/attribute_8c.html" id="IdentifyImageGray">IdentifyImageGray</a></h2>

<p>IdentifyImageGray() returns grayscale if all the pixels in the image have the same red, green, and blue intensities, and bi-level is the intensity is either 0 or QuantumRange. Otherwise undefined is returned.</p>

<p>The format of the IdentifyImageGray method is:</p>

<pre class="text">
ImageType IdentifyImageGray(const Image *image,ExceptionInfo *exception)
</pre>

<p>A description of each parameter follows:</p>

<dd>
</dd>

<dd> </dd>
<dl class="dl-horizontal">
<dt>image</dt>
<dd>the image. </dd>

<dd> </dd>
<dt>exception</dt>
<dd>return any errors or warnings in this structure. </dd>

<dd>  </dd>
</dl>
<h2><a href="http://www.imagemagick.org/api/MagickCore/attribute_8c.html" id="IdentifyImageMonochrome">IdentifyImageMonochrome</a></h2>

<p>IdentifyImageMonochrome() returns MagickTrue if all the pixels in the image have the same red, green, and blue intensities and the intensity is either 0 or QuantumRange.</p>

<p>The format of the IdentifyImageMonochrome method is:</p>

<pre class="text">
MagickBooleanType IdentifyImageMonochrome(const Image *image,
  ExceptionInfo *exception)
</pre>

<p>A description of each parameter follows:</p>

<dd>
</dd>

<dd> </dd>
<dl class="dl-horizontal">
<dt>image</dt>
<dd>the image. </dd>

<dd> </dd>
<dt>exception</dt>
<dd>return any errors or warnings in this structure. </dd>

<dd>  </dd>
</dl>
<h2><a href="http://www.imagemagick.org/api/MagickCore/attribute_8c.html" id="IdentifyImageType">IdentifyImageType</a></h2>

<p>IdentifyImageType() returns the potential type of image:</p>

<p>Bilevel         Grayscale        GrayscaleMatte Palette         PaletteMatte     TrueColor TrueColorMatte  ColorSeparation  ColorSeparationMatte</p>

<p>To ensure the image type matches its potential, use SetImageType():</p>

<pre class="text">
    (void) SetImageType(image,IdentifyImageType(image,exception),exception);
</pre>

<p>The format of the IdentifyImageType method is:</p>

<pre class="text">
ImageType IdentifyImageType(const Image *image,ExceptionInfo *exception)
</pre>

<p>A description of each parameter follows:</p>

<dd>
</dd>

<dd> </dd>
<dl class="dl-horizontal">
<dt>image</dt>
<dd>the image. </dd>

<dd> </dd>
<dt>exception</dt>
<dd>return any errors or warnings in this structure. </dd>

<dd>  </dd>
</dl>
<h2><a href="http://www.imagemagick.org/api/MagickCore/attribute_8c.html" id="IsImageGray">IsImageGray</a></h2>

<p>IsImageGray() returns MagickTrue if the type of the image is grayscale or bi-level.</p>

<p>The format of the IsImageGray method is:</p>

<pre class="text">
MagickBooleanType IsImageGray(const Image *image)
</pre>

<p>A description of each parameter follows:</p>

<dd>
</dd>

<dd> </dd>
<dl class="dl-horizontal">
<dt>image</dt>
<dd>the image. </dd>

<dd>  </dd>
</dl>
<h2><a href="http://www.imagemagick.org/api/MagickCore/attribute_8c.html" id="IsImageMonochrome">IsImageMonochrome</a></h2>

<p>IsImageMonochrome() returns MagickTrue if type of the image is bi-level.</p>

<p>The format of the IsImageMonochrome method is:</p>

<pre class="text">
MagickBooleanType IsImageMonochrome(const Image *image)
</pre>

<p>A description of each parameter follows:</p>

<dd>
</dd>

<dd> </dd>
<dl class="dl-horizontal">
<dt>image</dt>
<dd>the image. </dd>

<dd>  </dd>
</dl>
<h2><a href="http://www.imagemagick.org/api/MagickCore/attribute_8c.html" id="IsImageOpaque">IsImageOpaque</a></h2>

<p>IsImageOpaque() returns MagickTrue if none of the pixels in the image have an alpha value other than OpaqueAlpha (QuantumRange).</p>

<p>Will return true immediatally is alpha channel is not available.</p>

<p>The format of the IsImageOpaque method is:</p>

<pre class="text">
MagickBooleanType IsImageOpaque(const Image *image,
  ExceptionInfo *exception)
</pre>

<p>A description of each parameter follows:</p>

<dd>
</dd>

<dd> </dd>
<dl class="dl-horizontal">
<dt>image</dt>
<dd>the image. </dd>

<dd> </dd>
<dt>exception</dt>
<dd>return any errors or warnings in this structure. </dd>

<dd>  </dd>
</dl>
<h2><a href="http://www.imagemagick.org/api/MagickCore/attribute_8c.html" id="SetImageDepth">SetImageDepth</a></h2>

<p>SetImageDepth() sets the depth of the image.</p>

<p>The format of the SetImageDepth method is:</p>

<pre class="text">
MagickBooleanType SetImageDepth(Image *image,const size_t depth,
  ExceptionInfo *exception)
</pre>

<p>A description of each parameter follows:</p>

<dd>
</dd>

<dd> </dd>
<dl class="dl-horizontal">
<dt>image</dt>
<dd>the image. </dd>

<dd> </dd>
<dt>channel</dt>
<dd>the channel. </dd>

<dd> </dd>
<dt>depth</dt>
<dd>the image depth. </dd>

<dd> </dd>
<dt>exception</dt>
<dd>return any errors or warnings in this structure. </dd>

<dd>  </dd>
</dl>
<h2><a href="http://www.imagemagick.org/api/MagickCore/attribute_8c.html" id="SetImageType">SetImageType</a></h2>

<p>SetImageType() sets the type of image.  Choose from these types:</p>

<p>Bilevel        Grayscale       GrayscaleMatte Palette        PaletteMatte    TrueColor TrueColorMatte ColorSeparation ColorSeparationMatte OptimizeType</p>

<p>The format of the SetImageType method is:</p>

<pre class="text">
MagickBooleanType SetImageType(Image *image,const ImageType type,
  ExceptionInfo *exception)
</pre>

<p>A description of each parameter follows:</p>

<dd>
</dd>

<dd> </dd>
<dl class="dl-horizontal">
<dt>image</dt>
<dd>the image. </dd>

<dd> </dd>
<dt>type</dt>
<dd>Image type. </dd>

<dd> </dd>
<dt>exception</dt>
<dd>return any errors or warnings in this structure. </dd>

<dd>  </dd>
</dl>
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