The Imagick class
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Imagick::getImageChannelDistortion

(PECL imagick 2.0.0)

Imagick::getImageChannelDistortionCompares image channels of an image to a reconstructed image

说明

float Imagick::getImageChannelDistortion ( Imagick $reference , int $channel , int $metric )
Warning

本函数暂无文档,仅有参数列表。

Compares one or more image channels of an image to a reconstructed image and returns the specified distortion metric.

参数

reference

Imagick object to compare to.

channel

Provide any channel constant that is valid for your channel mode. To apply to more than one channel, combine channeltype constants using bitwise operators. Defaults to Imagick::CHANNEL_ALL. Refer to this list of channel constants.

metric

One of the metric type constants.

返回值

Returns TRUE on success.

错误/异常

Throws ImagickException on error.


The Imagick class
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