Imagick::medianFilterImage

(PECL imagick 2.0.0)

Imagick::medianFilterImage — Applies a digital filter

说明

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

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();
}

?>

相关文章
php gmagick applies a digital filterphp imagick adds adaptive blur filter to imagephp imagick animates an image or imagesphp imagick adds blur filter to imagephp imagick clips along the named paths from the 8bim profilephp imagick change the contrast of the imagephp imagick applies a custom convolution kernel to the imagephp imagick displays an image or image sequencephp imagick applies an expression to an imagephp imagick changes the color value of any pixel that matches targetphp imagick applies a function on the imagephp imagick returns the imagemagick home urlphp imagick returns statistics for each channel in the imagephp imagick gets the width and height as an associative arrayphp imagick applies a digital filterphp imagick applies a solarizing effect to the imagephp imagick hides a digital watermark within the imagephp imagick applies a color vector to each pixel in the imagephp imagick adds vignette filter to the imagephp imagick applies wave filter to the image
关注编程学问公众号