The Imagick class
PHP Manual

Imagick::negateImage

(PECL imagick 2.0.0)

Imagick::negateImageNegates the colors in the reference image

说明

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

本函数还未编写文档,仅有参数列表。

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

参数

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.

返回值

Returns TRUE on success.

错误/异常

Throws ImagickException on error.


The Imagick class
PHP Manual