Imagick
PHP Manual

Imagick::negateImage

(PECL imagick 2.0.0)

Imagick::negateImageNegates the colors in the reference image

Descrição

bool Imagick::negateImage ( bool $gray [, int $channel = Imagick::CHANNEL_ALL ] )

Negates the colors in the reference image. The Grayscale option means that only grayscale values within the image are negated.

Parâmetros

gray

Whether to only negate grayscale pixels within the image.

channel

Provide any channel constant that is valid for your channel mode. To apply to more than one channel, combine channeltype constants using bitwise operators. Refer to this list of channel constants.

Valor Retornado

Returns TRUE on success.

Erros

Throws ImagickException on error.


Imagick
PHP Manual