Imagick::reduceNoiseImage

(PECL imagick 2.0.0)

Imagick::reduceNoiseImage — Smooths the contours of an image

说锟斤拷

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.

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radius

锟斤拷锟斤拷值

锟缴癸拷时锟斤拷锟斤拷 TRUE锟斤拷

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锟斤拷锟斤拷时锟阶筹拷 ImagickException锟斤拷

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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();
}

?>