Imagick::reduceNoiseImage

(PECL imagick 2, PECL imagick 3)

Imagick::reduceNoiseImage — Smooths the contours of an image

警告

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。

示例

示例 #1 Imagick::reduceNoiseImage()

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

?>

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