Imagick::getImageChannelRange

    (PECL imagick 2 >= 2.2.1, PECL imagick 3)

    Imagick::getImageChannelRange — Gets channel range

    Description

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

    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

    Return Values

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

    Errors/Exceptions

    Throws ImagickException on error.

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