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Imagick::getImageChannelDistortion

PHP function Edit on GitHub ✎

(PECL imagick 2, PECL imagick 3)

Compares image channels of an image to a reconstructed image

Description

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

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

Parameters

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. Refer to this list of channel constants.

metric

One of the metric type constants.

Return Values

Success

Errors/Exceptions

Throws

Source: reference/imagick/imagick/getimagechanneldistortion.xml · from the official PHP manual (php/doc-en)