Imagick::medianFilterImage

(PECL imagick 2.0.0)

Imagick::medianFilterImage — Applies 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 ();
}

 ?>