Imagick::vignetteImage()

(PECL imagick 2.0.0)

Adds vignette filter to the image

说明

Imagick::vignetteImage(float $blackPoint,float $whitePoint,int $x,int $y): bool

Softens 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();
}
?>