The Imagick class
PHP Manual

Imagick::adaptiveSharpenImage

(PECL imagick 2.0.0)

Imagick::adaptiveSharpenImageAdaptively sharpen the image

설명

bool Imagick::adaptiveSharpenImage ( float $radius , float $sigma [, int $channel= Imagick::CHANNEL_ALL ] )
Warning

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Adaptively sharpen the image by sharpening more intensely near image edges and less intensely far from edges. 이 메쏘드는 Imagick을 ImageMagick 6.2.9 이상으로 컴파일 했을 때만 사용할 수 있습니다.

인수

radius

The radius of the Gaussian, in pixels, not counting the center pixel. Use 0 for auto-select.

sigma

The standard deviation of the Gaussian, in pixels.

channel

Provide any channel constant that is valid for your channel mode. To apply to more than one channel, combine channeltype constants using bitwise operators. Defaults to Imagick::CHANNEL_ALL. Refer to this list of channel constants.

반환값

성공시에 TRUE를 반환합니다.

예제

Example #1 A Imagick::adaptiveSharpenImage() example

Adaptively sharpen the image with radius 2 and sigma 1.

<?php
try {
    
$image = new Imagick('image.png');
    
$image->adaptiveSharpenImage(2,1);
} catch(
ImagickException $e) {
    echo 
'Error: ' $e->getMessage();
    die();
}
header('Content-type: image/png');
echo 
$image;
?>

참고


The Imagick class
PHP Manual