Imagick::adaptiveResizeImageImagick::adaptiveSharpenImage
(PECL imagick 2.0.0)
Imagick::adaptiveSharpenImage — Adaptively sharpen the image
Beschreibung
Adaptively sharpen the image by sharpening more intensely near image edges and less intensely far from edges. Diese Funktion ist verfügbar, wenn Imagick gegen die ImageMagick Version 6.2.9 oder höher kompiliert wurde.
Parameter-Liste
- 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
Rückgabewerte
Liefert TRUE bei Erfolg.
Beispiele
Beispiel #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;
?>
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