PHP Manual: Imagick::compareImageLayers

Description

public function Imagick::compareImageLayers(int $method): Imagick

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 */
?>

Imagick::compareImageLayers

Description

Parameters

Return Values

Errors/Exceptions

Examples

See Also