Imagick::negateImage
(PECL imagick 2.0.0)
Imagick::negateImage — Negates the colors in the reference image
說明
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.
參數
-
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.
回傳值
成功時回傳 TRUE。
錯誤/例外
錯誤時拋出 ImagickException。
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