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Gmagick::separateimagechannel

(PECL gmagick >= Unknown)

Gmagick::separateimagechannelSeparates a channel from the image

Descrição

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.

Parâmetros

channel

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

Valor Retornado

The Gmagick object.

Erros

Lança uma exceção GmagickException em erros.

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