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
此函數目前沒有參考文件；只有引數列表。
Warning
這個函數是實驗性質的。這個函數的行為、名稱、和關於此函數的任何其他文件在未來PHP的發行中可能會在不通知的情況下改變。 使用此延伸需自行承擔風險。
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.
範例
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];
?>