<!DOCTYPE html> <html lang="en"> <head> <title>ImageMagick: MagickCore, C API for ImageMagick: Set Text Attributes</title> <meta charset="utf-8" /> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta name="viewport" content="width=device-width, initial-scale=1" /> <meta http-equiv="content-type" content="text/html; charset=utf-8"/> <meta name="application-name" content="ImageMagick"/> <meta name="description" content="ImageMagick® is a software suite to create, edit, compose, or convert bitmap images. It can read and write images in a variety of formats (over 200) including PNG, JPEG, JPEG-2000, GIF, WebP, Postscript, PDF, and SVG. 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</script> <nav class="magick-nav"> <a class="magick-nav-item " href="../index.html">Home</a> <a class="magick-nav-item " href="../binary-releases.html">Download</a> <a class="magick-nav-item " href="../command-line-tools.html">Tools</a> <a class="magick-nav-item " href="../command-line-processing.html">Command-line</a> <a class="magick-nav-item " href="../resources.html">Resources</a> <a class="magick-nav-item " href="api.html">Develop</a> <a class="magick-nav-item " href="http://www.imagemagick.org/script/search.php">Search</a> <a class="magick-nav-item pull-right" href="https://www.imagemagick.org/discourse-server/">Community</a> </nav> </div> </div> <div class="container"> <div class="magick-header"> <p class="text-center"><a href="attribute.html#GetImageDepth">GetImageDepth</a> • <a href="attribute.html#GetImageQuantumDepth">GetImageQuantumDepth</a> • <a href="attribute.html#GetImageType">GetImageType</a> • <a href="attribute.html#IdentifyImageGray">IdentifyImageGray</a> • <a href="attribute.html#IdentifyImageMonochrome">IdentifyImageMonochrome</a> • <a href="attribute.html#IdentifyImageType">IdentifyImageType</a> • <a href="attribute.html#IsImageGray">IsImageGray</a> • <a href="attribute.html#IsImageMonochrome">IsImageMonochrome</a> • <a href="attribute.html#IsImageOpaque">IsImageOpaque</a> • <a href="attribute.html#SetImageDepth">SetImageDepth</a> • <a href="attribute.html#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> </div> <footer class="magick-footer"> <p><a href="../support.html">Donate</a> • <a href="../sitemap.html">Sitemap</a> • <a href="../links.html">Related</a> • <a href="../architecture.html">Architecture</a> </p> <p><a href="attribute.html#">Back to top</a> • <a href="http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x89AB63D48277377A">Public Key</a> • <a href="http://www.imagemagick.org/script/contact.php">Contact Us</a></p> <p><small>© 1999-2016 ImageMagick Studio LLC</small></p> </footer> </div><!-- /.container --> <script src="https://localhost/ajax/libs/jquery/1.11.3/jquery.min.js"></script> <script src="../js/magick.html"></script> </div> </body> </html>