Imagick::vignetteImage
(PECL imagick 2.0.0)
Imagick::vignetteImage — Adds vignette filter to the image
说明
Imagick::vignetteImage
( float
$blackPoint
, float $whitePoint
, int $x
, int $y
) : boolSoftens the edges of the image in vignette style. 此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。
参数
-
blackPoint -
The black point.
-
whitePoint -
The white point
-
x -
X offset of the ellipse
-
y -
Y offset of the ellipse
返回值
成功时返回 TRUE。
参见
- Imagick::waveImage() - Applies wave filter to the image
- Imagick::swirlImage() - Swirls the pixels about the center of the image
范例
Example #1 Imagick::vignetteImage()
<?php
function vignetteImage($imagePath, $blackPoint, $whitePoint, $x, $y) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->vignetteImage($blackPoint, $whitePoint, $x, $y);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>