打开 哈希空间 微信小程序中查看更佳
(PECL imagick 2, PECL imagick 3)
Imagick::getImageDistortion — Compares an image to a reconstructed image
$reference, int $metric): float
Compares an image to a reconstructed image and returns the specified distortion metric.
Returns the distortion metric used on the image (or the best guess thereof).
错误时抛出 ImagickException。
