(PECL imagick 2.0.0)
ImagickDraw::matte — Paints on the image's opacity channel
This function is currently not documented; only its argument list is available.
Paints on the image's opacity channel in order to set effected pixels to transparent, to influence the opacity of pixels.
x coordinate of the matte
y coordinate of the matte
PAINT_ constant
Returns TRUE on success or FALSE on failure.