Dutch PHP Conference 2021 - Call for Papers


(PECL imagick 2, PECL imagick 3)

Imagick::getImageChannelMeanGets the mean and standard deviation


public Imagick::getImageChannelMean ( int $channel ) : array

Gets the mean and standard deviation of one or more image channels.



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.

Return Values

Returns an array with "mean" and "standardDeviation" members.


Throws ImagickException on error.

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