(PECL imagick 2.0.0)
Imagick::sketchImage — Simulates a pencil sketch
$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.
radiusThe radius of the Gaussian, in pixels, not counting the center pixel
sigmaThe standard deviation of the Gaussian, in pixels.
angleApply the effect along this angle.
Întoarce TRUE în caz de succes.