Gmagick::separateimagechannel

    (PECL gmagick >= Unknown)

    Gmagick::separateimagechannel — Separates a channel from the image

    Descrição

    publicGmagick::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/Exceções

    Lança uma exceção GmagickException em caso de erro.

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