(PECL imagick 2.0.0)
Imagick::optimizeImageLayers — Removes repeated portions of images to optimize
Compares each image the GIF disposed forms of the previous image in the sequence. From this it attempts to select the smallest cropped image to replace each frame, while preserving the results of the animation. 이 메쏘드는 Imagick을 ImageMagick 6.2.9 이상으로 컴파일 했을 때만 사용할 수 있습니다.
성공시에 TRUE를 반환합니다.
오류시에 ImagickException이 발생합니다.
Example #1 Using Imagick::optimizeImageLayers()
Reading, optimizing and writing a GIF image
<?php
/* create new imagick object */
$im = new Imagick("test.gif");
/* optimize the image layers */
$im->optimizeImageLayers();
/* write the image back */
$im->writeImages("test_optimized.gif", true);
?>