PHP 7.2.0 Release Candidate 4 Released

Imagick::medianFilterImage

(PECL imagick 2.0.0)

Imagick::medianFilterImageApplies a digital filter

说明

bool Imagick::medianFilterImage ( float $radius )

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

Example #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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