(PECL imagick 3 >= 3.3.0)
Imagick::selectiveBlurImage — Selectively blur an image within a contrast threshold
$radius
,$sigma
,$threshold
,$channel
= Imagick::CHANNEL_DEFAULTSelectively blur an image within a contrast threshold. It is similar to the unsharpen mask that sharpens everything with contrast above a certain threshold.
radius
sigma
threshold
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
Restituisce true
in caso di successo.
Example #1 Imagick::selectiveBlurImage()
<?php
function selectiveBlurImage($imagePath, $radius, $sigma, $threshold, $channel) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->selectiveBlurImage($radius, $sigma, $threshold, $channel);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>