Imagick::sharpenImage
(PECL imagick 2, PECL imagick 3)
Imagick::sharpenImage — Sharpens an image
Descrierea
public Imagick::sharpenImage
( float
$radius
, float $sigma
, int $channel = Imagick::CHANNEL_DEFAULT
) : boolSharpens an image. We convolve the image with a Gaussian operator of the given radius and standard deviation (sigma). For reasonable results, the radius should be larger than sigma. Use a radius of 0 and Imagick::sharpenImage() selects a suitable radius for you.
Parametri
-
radius -
-
sigma -
-
channel -
Valorile întoarse
Întoarce true în caz de succes.
Exemple
Example #1 Imagick::sharpenImage()
<?php
function sharpenImage($imagePath, $radius, $sigma, $channel) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->sharpenimage($radius, $sigma, $channel);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
add a note
User Contributed Notes
There are no user contributed notes for this page.
