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Imagick::compareImageChannels

(PECL imagick 2, PECL imagick 3)

Imagick::compareImageChannels — Returns the difference in one or more images

說(shuō)明

public Imagick::compareImageChannels(Imagick $image, int $channelType, int $metricType): array

Compares one or more images and returns the difference image.

參數

image

Imagick object containing the image to compare.

channelType

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.

metricType

One of the metric type constants.

返回值

Array consisting of new_wand and distortion.

錯誤／異常

錯誤時(shí)拋出 ImagickException。

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