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(PECL imagick 2.0.0)
Imagick::reduceNoiseImage — Smooths the contours of an image
$radius
)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
成功时返回 TRUE
。
错误时抛出 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 ();
}
?>