Imagick::vignetteImage
(PECL imagick 2.0.0)
Imagick::vignetteImage — Adds vignette filter to the image
說明
bool Imagick::vignetteImage
( float
$blackPoint
, float $whitePoint
, int $x
, int $y
)Softens the edges of the image in vignette style. 此方法在Imagick基於ImageMagick 6.2.9以上版本編譯時可用。
參數
-
blackPoint -
The black point.
-
whitePoint -
The white point
-
x -
X offset of the ellipse
-
y -
Y offset of the ellipse
回傳值
成功時回傳 TRUE。
參見
- Imagick::waveImage() - Applies wave filter to the image
- Imagick::swirlImage() - Swirls the pixels about the center of the image
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