Imagick::reduceNoiseImage

(PECL imagick 2, PECL imagick 3)

Imagick::reduceNoiseImage — Smooths the contours of an image

警告

此函數(shù)在 Imagick 3.4.4 中被廢棄，強(qiáng)烈建議不要應(yīng)用此函數(shù)。

說明

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.

參數(shù)

radius

返回值

成功時返回 true。

錯誤／異常

錯誤時拋出 ImagickException。

范例

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();
}

?>