IMAGICK.COMPAREIMAGES(3) 1 IMAGICK.COMPAREIMAGES(3)
Imagick::compareImages - Compares an image to a reconstructed image
SYNOPSIS
array Imagick::compareImages (Imagick $compare, int $metric)
DESCRIPTION
Returns an array containing a reconstructed image and the difference between images.
PARAMETERS
o $compare
- An image to compare to.
o $metric
- Provide a valid metric type constant. Refer to this list of metric constants.
RETURN VALUES
Returns TRUE on success.
ERRORS
/EXCEPTIONS
Throws ImagickException on error.
EXAMPLES
Example #1
Using Imagick.compareImages(3):
Compare images and display the reconstructed image
<?php
$image1 = new imagick("image1.png");
$image2 = new imagick("image2.png");
$result = $image1->compareImages($image2, Imagick::METRIC_MEANSQUAREERROR);
$result[0]->setImageFormat("png");
header("Content-Type: image/png");
echo $result[0];
?>
PHP Documentation Group IMAGICK.COMPAREIMAGES(3)
