Imagick::compareImages

(No version information available, might be only in CVS)

Imagick::compareImages — Compares an image to a reconstructed image

Description

array Imagick::compareImages ( Imagick $compare , int $metric )

Warning

This function is currently not documented; only its argument list is available.

Returns an array containing a reconstructed image and the difference between images.

Parameters

compare: An image to compare to.
metric: Provide a valid metric type constant. Refer to this list of metic constants.

Return Values

Returns TRUE on success.

Errors/Exceptions

Throws ImagickException on error.

Examples

Example #1 Using Imagick::compareImages():

Compare images and display the reconstructed image


<?php



$image1 = new imagick("image1.png");

$image2 = new imagick("image2.png");



$result = $image1->compareImage($image2, Imagick::METRIC_MEANSQUAREERROR);

$result[0]->setImageFormat("png");



header("Content-Type: image/png");

echo $result[0];



?>