Imagick::getImageChannelExtrema

(PECL imagick 2, PECL imagick 3)

Imagick::getImageChannelExtrema — Gets the extrema for one or more image channels

Warnung

Diese Funktion ist von Imagick 3.4.4 an MISSBILLIGT. Von der weiteren Verwendung wird dringend abgeraten.

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

Gets the extrema for one or more image channels. Return value is an associative array with the keys "minima" and "maxima".

channel: 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.

Liefert true bei Erfolg.

Wirft ImagickException bei Fehlern.

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