(PECL imagick 2.0.0)
Sets the image matte channel
bool Imagick::setImageMatte ( bool $matte )
Sets the image matte channel. This method is available if Imagick has been compiled against ImageMagick version 6.2.9 or newer.
Parameters:
matte
True activates the matte channel and false disables it.
Returns:
Returns TRUE
on success.
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