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    Gmagick::setimagechanneldepth

    (PECL gmagick >= Unknown)

    Gmagick::setimagechanneldepth — Sets the depth of a particular image channel

    说明

    public Gmagick::setimagechanneldepth(int $channel, int $depth): Gmagick

    Sets the depth of a particular image channel.

    参数

    channel

    Identify which channel to extract: RedChannel, GreenChannel, BlueChannel, OpacityChannel, CyanChannel, MagentaChannel, YellowChannel, BlackChannel.

    depth

    The image depth in bits.

    返回值

    The Gmagick object on success

    错误／异常

    错误时抛出 GmagickException。

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