Be aware that this function is extremely CPU intensive.Imagick::adaptiveBlurImage
(PECL imagick 2, PECL imagick 3)
Imagick::adaptiveBlurImage — Adds adaptive blur filter to image
Descrizione
public Imagick::adaptiveBlurImage(float
$radius, float $sigma, int $channel = Imagick::CHANNEL_DEFAULT): boolAdds an adaptive blur filter to image. The intensity of an adaptive blur depends is dramatically decreased at edge of the image, whereas a standard blur is uniform across the image. Questo metodo è disponibile se Imagick è stato compilato con ImageMagick versione 6.2.9 o successive.
Elenco dei parametri
radius-
The radius of the Gaussian, in pixels, not counting the center pixel. Provide a value of 0 and the radius will be chosen automagically.
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. Per default è
Imagick::CHANNEL_DEFAULT. Fare riferimento a questa lista di costanti di canale
Valori restituiti
Restituisce true in caso di successo.
Errori/Eccezioni
Lancia una ImagickException in caso di errore.
Esempi
Example #1 Using Imagick::adaptiveBlurImage():
Adaptively blur an image, then display to the browser.
<?php
header('Content-type: image/jpeg');
$image = new Imagick('test.jpg');
$image->adaptiveBlurImage(5,3);
echo $image;
?>Il precedente esempio visualizzerà qualcosa simile a:
Vedere anche:
- Imagick::blurImage() - Adds blur filter to image
- Imagick::motionBlurImage() - Simulates motion blur
- Imagick::radialBlurImage() - Radial blurs an image
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