Php/docs/imagick.reducenoiseimage

• PHP Manual
• Imagick
• Smooths the contours of an image

Imagick::reduceNoiseImage

(PECL imagick 2, PECL imagick 3)

Imagick::reduceNoiseImage — Smooths the contours of an image

Warning 此函数在 Imagick 3.4.4 中被 废弃，强烈建议不要应用此函数。

说明

public Imagick::reduceNoiseImage ( float $radius ) : bool

Smooths the contours of an image while still preserving edge information. The algorithm works by replacing each pixel with its neighbor closest in value. A neighbor is defined by radius. Use a radius of 0 and Imagick::reduceNoiseImage() selects a suitable radius for you.

参数

radius

返回值

成功时返回 true。

错误／异常

错误时抛出 ImagickException。

范例

Example #1 Imagick::reduceNoiseImage()

<?phpfunction reduceNoiseImage($imagePath, $reduceNoise) {    $imagick = new \Imagick(realpath($imagePath));    @$imagick->reduceNoiseImage($reduceNoise);    header("Content-Type: image/jpg");    echo $imagick->getImageBlob();}?>