Imagick::compareImageLayers

(PECL imagick 2.0.0)

Imagick::compareImageLayers — Returns the maximum bounding region between images

Описание

Imagick Imagick::compareImageLayers ( int $method )

Compares each image with the next in a sequence and returns the maximum bounding region of any pixel differences it discovers. This method is available if Imagick has been compiled against ImageMagick version 6.2.9 or newer.

Список параметров

method: One of the layer method constants.

Возвращаемые значения

Returns TRUE on success.

Errors/Exceptions

Throws ImagickException on error.

Примеры

Пример #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 */
?>

Смотрите также

Imagick::optimizeImageLayers() - Removes repeated portions of images to optimize
Imagick::writeImages() - Writes an image or image sequence
Imagick::writeImagesFile()