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Imagick::adaptiveSharpenImage

Adaptively sharpen the image ()
bool Imagick::adaptiveSharpenImage ( float radius, float sigma [, int channel] )

Warning:

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

Warning:

This function is EXPERIMENTAL. The behaviour of this function, the name of this function, and anything else documented about this function may change without notice in a future release of PHP. Use this function at your own risk.

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 1032. 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;
?>