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

# Imagick::adaptiveSharpenImage

(No version information available, might be only in CVS)

Imagick::adaptiveSharpenImage — Adaptively sharpen the image

### Description

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

This function is currently not documented; only its argument list is available.

Adaptively sharpen the image by sharpening more intensely near image edges and less intensely far from edges.

### Parameters

`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.

### Return Values

Returns `TRUE` on success.

### Examples

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;
?>`

### See Also

- Imagick::sharpenImage()

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