Imagick::optimizeImageLayers

(PECL imagick 2.0.0)

Imagick::optimizeImageLayers — Removes repeated portions of images to optimize

Описание

bool Imagick::optimizeImageLayers ( void )

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. This method is available if Imagick has been compiled against ImageMagick version 6.2.9 or newer.

Возвращаемые значения

Returns TRUE on success.

Errors/Exceptions

Throws ImagickException on error.

Примеры

Пример #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);
?>

Смотрите также

Imagick::compareImageLayers() - Returns the maximum bounding region between images
Imagick::writeImages() - Writes an image or image sequence
Imagick::writeImagesFile()