The Imagick class
PHP 手册

Imagick::getImageDistortion

(PECL imagick 2.0.0)

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

说明

float Imagick::getImageDistortion ( MagickWand $reference , int $metric )
Warning

本函数暂无文档，仅有参数列表。

Compares an image to a reconstructed image and returns the specified distortion metric.

参数

reference

Imagick object to compare to.

metric

One of the metric type constants.

返回值

Returns the distortion metric used on the image (or the best guess thereof). Throws an exception on error.

错误／异常

Throws ImagickException on error.

The Imagick class
PHP 手册