Imagick::setImageAlphaChannel

    (PECL imagick 2 >= 2.1.0, PECL imagick 3)

    Imagick::setImageAlphaChannel — Sets image alpha channel

    Description

    public Imagick::setImageAlphaChannel(int $mode): bool

    Activate or deactivate image alpha channel. The mode is one of the Imagick::ALPHACHANNEL_* constants. This method is available if Imagick has been compiled against ImageMagick version 6.3.8 or newer.

    Parameters

    mode

    One of the Imagick::ALPHACHANNEL_* constants

    Return Values

    Returns true on success.

    Errors/Exceptions

    Throws ImagickException on error.

    See Also

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