magickSketchImage method

Future<bool> magickSketchImage({
  1. required double radius,
  2. required double sigma,
  3. required double angle,
})

MagickSketchImage() 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 SketchImage() selects a suitable radius for you. Angle gives the angle of the blurring motion.

This method runs inside an isolate different from the main isolate.

  • 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.

Implementation

Future<bool> magickSketchImage({
  required double radius,
  required double sigma,
  required double angle,
}) async =>
    await _magickCompute(
      _magickSketchImage,
      _MagickSketchImageParams(
        _wandPtr.address,
        radius,
        sigma,
        angle,
      ),
    );