PHP 5.4.31 Released

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 ] )

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

成功时返回 TRUE

错误/异常

错误时抛出 ImagickException。

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