Imagick::sigmoidalContrastImageImagick::sketchImage
(PECL imagick 2.0.0)
Imagick::sketchImage — Simulates a pencil sketch
Descrierea
$radius
, float $sigma
, float $angle
)Simulates a pencil sketch. We convolve the image with a Gaussian operator of the given radius and standard deviation (sigma). For reasonable results, radius should be larger than sigma. Use a radius of 0 and Imagick::sketchImage() selects a suitable radius for you. Angle gives the angle of the blurring motion. Această metodă este disponibilă dacă Imagick a fost compilat cu ImageMagick de versiunea 6.2.9 sau ulterior.
Parametri
-
radius -
The radius of the Gaussian, in pixels, not counting the center pixel
-
sigma -
The standard deviation of the Gaussian, in pixels.
-
angle -
Apply the effect along this angle.
Valorile întoarse
Întoarce TRUE în caz de succes.
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