Imagick::shadowImageImagick::sharpenImage
(PECL imagick 2.0.0)
Imagick::sharpenImage — Sharpens an image
Opis
bool Imagick::sharpenImage
( float
$radius
, float $sigma
[, int $channel = Imagick::CHANNEL_ALL
] )Sharpens 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 selects a suitable radius for you.
Parametry
-
radius -
-
sigma -
-
channel -
Zwracane wartoĊci
Zwraca TRUE w przypadku sukcesu.
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