GoLang Imagick::getImageChannelRange

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PHP Imagick::getImageChannelRange

PHP original manual for Imagick::getImageChannelRange [ show | php.net ]


(PECL imagick 2.2.1)

Imagick::getImageChannelRangeGets channel range


array Imagick::getImageChannelRange ( int $channel )

Gets the range for one or more image channels. This method is available if Imagick has been compiled against ImageMagick version 6.4.0 or newer.



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

Return Values

Returns an array containing minima and maxima values of the channel(s).


Throws ImagickException on error.