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Name Type Location Description
image_desaturate function drupal/core/includes/image.inc Converts an image to grayscale.
GDToolkit::desaturate function drupal/core/modules/system/lib/Drupal/system/Plugin/ImageToolkit/GDToolkit.php Implements \Drupal\system\Plugin\ImageToolkitInterface::desaturate().
image_desaturate_effect function drupal/core/modules/image/image.effects.inc Image effect callback; Desaturate (grayscale) an image resource.
TestToolkit::desaturate function drupal/core/modules/system/tests/modules/image_test/lib/Drupal/image_test/Plugin/ImageToolkit/TestToolkit.php Implements \Drupal\system\Plugin\ImageToolkitInterface::desaturate().
ToolkitTest::testDesaturate function drupal/core/modules/system/lib/Drupal/system/Tests/Image/ToolkitTest.php Test the image_desaturate() function.
ImageToolkitInterface::desaturate function drupal/core/modules/system/lib/Drupal/system/Plugin/ImageToolkitInterface.php Converts an image resource to grayscale.
ImageEffectsTest::testDesaturateEffect function drupal/core/modules/image/lib/Drupal/image/Tests/ImageEffectsTest.php Test the image_desaturate_effect() function.