Gmagick::scaleimageGmagick::separateimagechannel
(PECL gmagick >= Unknown)
Gmagick::separateimagechannel — Separates a channel from the image
Descrierea
Separates a channel from the image and returns a grayscale image. A channel is a particular color component of each pixel in the image.
Parametri
-
channel -
Identify which channel to extract: RedChannel, GreenChannel, BlueChannel, OpacityChannel, CyanChannel, MagentaChannel, YellowChannel, BlackChannel.
Valorile întoarse
The Gmagick object on success
Erori/Excepții
Emite o GmagickException în caz de eroare.
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