(No version information available, might be only in CVS)
Imagick::compareImages — Compares an image to a reconstructed image
本函数暂无文档,仅有参数列表。
本函数是实验性的。本函数的行为,包括函数名称以及其它任何关于本函数的文档可能会在没有通知的情况下随 PHP 以后的发布而改变。使用本函数风险自担。
Returns an array containing a reconstructed image and the difference between images.
An image to compare to.
Provide a valid metric type constant. Refer to this list of metic constants.
Returns TRUE on success.
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];
?>