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Imagick::getImageChannelExtrema

(PECL imagick 2.0.0)

Imagick::getImageChannelExtremaGets the extrema for one or more image channels

Beschreibung

array Imagick::getImageChannelExtrema ( int $channel )

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

Parameter-Liste

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.

R├╝ckgabewerte

Liefert TRUE bei Erfolg.

Fehler/Exceptions

Wirft ImagickException bei Fehlern.

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