GoLang Imagick::compareImageLayers

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PHP Imagick::compareImageLayers

PHP original manual for Imagick::compareImageLayers [ show | php.net ]

Imagick::compareImageLayers

(PECL imagick 2.0.0)

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

Description

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.

Parameters

method

One of the layer method constants.

Return Values

Returns TRUE on success.

Errors/Exceptions

Throws ImagickException on error.

Examples

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 */
?>

See Also