Imagick::sigmoidalContrastImageImagick::sketchImage
(PECL imagick 2.0.0)
Imagick::sketchImage — Simulates a pencil sketch
설명
bool Imagick::sketchImage
( float $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. 이 메쏘드는 Imagick을 ImageMagick 6.2.9 이상으로 컴파일 했을 때만 사용할 수 있습니다.
인수
- 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.
반환값
성공시에 TRUE를 반환합니다.
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