Imagick::getImageChannelRange

(PECL imagick 2.2.1)

Gets 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.

Parameters:

channel

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

Returns:

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

Exception:

Throws ImagickException on error.

Links:

http://php.net/manual/en/imagick.getimagechannelrange.php

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2016-02-24 16:00:59

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