Imagick::compareImageChannelsImagick::compareImageLayers
(PECL imagick 2.0.0)
Imagick::compareImageLayers — Returns the maximum bounding region between images
Descrierea
Compares each image with the next in a sequence and returns the maximum bounding region of any pixel differences it discovers. Această metodă este disponibilă dacă Imagick a fost compilat cu ImageMagick de versiunea 6.2.9 sau ulterior.
Valorile întroarse
Întoarce TRUE în caz de succes.
Erori/Excepţii
Aruncă ImagickException în caz de eroare.
Exemple
Example #1 Using Imagick::compareImageLayers()
Comparing image layers
<?php
/* create new imagick object */
$im = new Imagick("test.gif");
/* optimize the image layers */
$result = $im->compareImageLayers(imagick::LAYERMETHOD_COALESCE);
/* work on the $result */
?>
Vedeţi de asemenea
- Imagick::optimizeImageLayers() - Removes repeated portions of images to optimize
- Imagick::writeImages() - Writes an image or image sequence
- Imagick::writeImage() - Writes an image to the specified filename
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