Imagick::medianFilterImage

(PECL imagick 2, PECL imagick 3)

Imagick::medianFilterImage — Applies a digital filter

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(shuō)明

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

Applies a digital filter that improves the quality of a noisy image. Each pixel is replaced by the median in a set of neighboring pixels as defined by radius.

參數(shù)

radius

The radius of the pixel neighborhood.

返回值

成功時(shí)返回 true。

錯(cuò)誤／異常

錯(cuò)誤時(shí)拋出 ImagickException。

范例

示例 #1 Imagick::medianFilterImage()

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

?>