Imagick::medianFilterImage

(PECL imagick 2, PECL imagick 3)

Imagick::medianFilterImage — Applies a digital filter

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::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.

参数

radius

The radius of the pixel neighborhood.

返回值

成功时返回 true。

错误／异常

错误时抛出 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();
}

?>
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