Gmagick::scaleimageGmagick::separateimagechannel
(PECL gmagick >= Unknown)
Gmagick::separateimagechannel — Separates a channel from the image
Descrição
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 -
Identify which channel to extract: RedChannel, GreenChannel, BlueChannel, OpacityChannel, CyanChannel, MagentaChannel, YellowChannel, BlackChannel.
Valor Retornado
The Gmagick object on success
Erros
Throws an GmagickException on error.
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