(PECL imagick 2.0.0)
Imagick::adaptiveSharpenImage — Adaptively sharpen the image
$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. Ta metoda jest dostępna, jeśli rozszerzenie Imagick zostało skompilowane z ImageMagick w wersji 6.2.9 lub nowszej.
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
Zwraca TRUE w przypadku sukcesu.
Przykład #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;
?>