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Gmagick::separateimagechannel

(PECL gmagick >= Unknown)

Gmagick::separateimagechannelSeparates a channel from the image

Beschreibung

public Gmagick::separateimagechannel(int $channel): Gmagick

Separates a channel from the image and returns a grayscale image. A channel is a particular color component of each pixel in the image.

Parameter-Liste

channel

One of the Channel constant (Gmagick::CHANNEL_*).

R├╝ckgabewerte

The Gmagick object.

Fehler/Exceptions

Wirft bei einem Fehler eine GmagickException.

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