Php/docs/imagick.sketchimage
Imagick::sketchImage
(PECL imagick 2, PECL imagick 3)
Imagick::sketchImage — Simulates a pencil sketch
说明
public Imagick::sketchImage
( float $radius
, float $sigma
, float $angle
) : bool
Simulates a pencil sketch. We convolve the image with a Gaussian operator of the given radius and standard deviation (sigma). For reasonable results, radius should be larger than sigma. Use a radius of 0 and Imagick::sketchImage() selects a suitable radius for you. Angle gives the angle of the blurring motion. 此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。
参数
radius- The radius of the Gaussian, in pixels, not counting the center pixel
sigma- The standard deviation of the Gaussian, in pixels.
angle- Apply the effect along this angle.
返回值
成功时返回 true。
范例
Example #1 Imagick::sketchImage()
<?phpfunction sketchImage($imagePath, $radius, $sigma, $angle) { $imagick = new \Imagick(realpath($imagePath)); $imagick->sketchimage($radius, $sigma, $angle); header("Content-Type: image/jpg"); echo $imagick->getImageBlob();}?>
