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

# Imagick::adaptiveSharpenImage

(PECL imagick 2.0.0)

Imagick::adaptiveSharpenImage — Adaptively sharpen the image

### Beschreibung

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

Adaptively sharpen the image by sharpening more intensely near image edges and less intensely far from edges. Diese Funktion ist verfügbar, wenn Imagick gegen die ImageMagick Version 6.2.9 oder höher kompiliert wurde.

### Parameter-Liste

`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 channel constants using bitwise operators. Defaults to `Imagick::CHANNEL_DEFAULT`. Refer to this list of channel constants

### Rückgabewerte

Liefert `TRUE` bei Erfolg.

### Beispiele

Beispiel #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;
?>`

### Siehe auch

- Imagick::sharpenImage() - Sharpens an image

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