Imagick::reduceNoiseImage

(PECL imagick 2.0.0)

Imagick::reduceNoiseImage — Smooths the contours of an image

˵��

Imagick::reduceNoiseImage ( float $radius ) : bool

Smooths the contours of an image while still preserving edge information. The algorithm works by replacing each pixel with its neighbor closest in value. A neighbor is defined by radius. Use a radius of 0 and Imagick::reduceNoiseImage() selects a suitable radius for you.

����

radius

����ֵ

�ɹ�ʱ���� TRUE��

�����쳣

����ʱ�׳� ImagickException��

����

Example #1 Imagick::reduceNoiseImage()

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

?>