Imagick::adaptiveResizeImage
Imagick::adaptiveThresholdImage
The Imagick class
PHP Manual

# Imagick::adaptiveSharpenImage

(PECL imagick 2.0.0)

Imagick::adaptiveSharpenImage — Adaptively 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 `TRUE`를 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

- Imagick::sharpenImage() - Sharpens an image

Imagick::adaptiveResizeImage
Imagick::adaptiveThresholdImage
The Imagick class
PHP Manual