function image_desaturate_effect
7.x image.effects.inc | image_desaturate_effect(&$image, $data) |
Image effect callback; Desaturate (grayscale) an image resource.
Parameters
$image: An image object returned by image_load().
$data: An array of attributes to use when performing the desaturate effect.
Return value
TRUE on success. FALSE on failure to desaturate image.
See also
1 call to image_desaturate_effect()
- ImageEffectsUnitTest::testDesaturateEffect in drupal-7.x/
modules/ image/ image.test - Test the image_desaturate_effect() function.
2 string references to 'image_desaturate_effect'
- hook_image_styles_alter in drupal-7.x/
modules/ image/ image.api.php - Modify any image styles provided by other modules or the user.
- image_image_effect_info in drupal-7.x/
modules/ image/ image.effects.inc - Implements hook_image_effect_info().
File
- drupal-7.x/
modules/ image/ image.effects.inc, line 226 - Functions needed to execute image effects provided by Image module.
Code
function image_desaturate_effect(&$image, $data) {
if (!image_desaturate($image)) {
watchdog('image', 'Image desaturate failed using the %toolkit toolkit on %path (%mimetype, %dimensions)', array('%toolkit' => $image->toolkit, '%path' => $image->source, '%mimetype' => $image->info['mime_type'], '%dimensions' => $image->info['width'] . 'x' . $image->info['height']), WATCHDOG_ERROR);
return FALSE;
}
return TRUE;
}