Imagick::adaptiveSharpenImage
(PECL imagick 2, PECL imagick 3)
Imagick::adaptiveSharpenImage — Adaptively sharpen the image
Description
public Imagick::adaptiveSharpenImage ( float $radius , float $sigma [, int $channel = Imagick::CHANNEL_DEFAULT ] ) : bool
Adaptively sharpen the image by sharpening more intensely near image edges and less intensely far from edges. This method is available if Imagick has been compiled against ImageMagick version 6.2.9 or newer.
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 channel constants using bitwise operators. Defaults to
Imagick::CHANNEL_DEFAULT. 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() - Sharpens an image
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Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/imagick.adaptivesharpenimage.php