Imagick
PHP Manual

Imagick::setImageMatte

(PECL imagick 2.0.0)

Imagick::setImageMatte — Sets the image matte channel

Descrição

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.

Parâmetros

matte

True activates the matte channel and false disables it.

Valor Retornado

Returns TRUE on success.

Imagick
PHP Manual