magickSelectiveBlurImage method

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

MagickSelectiveBlurImage() selectively blur an image within a contrast threshold. It is similar to the unsharpen mask that sharpens everything with contrast above a certain threshold.

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.
  • threshold: only pixels within this contrast threshold are included in the blur operation.

Implementation

Future<bool> magickSelectiveBlurImage({
  required double radius,
  required double sigma,
  required double threshold,
}) async =>
    await _magickCompute(
      _magickSelectiveBlurImage,
      _MagickSelectiveBlurImageParams(
        _wandPtr.address,
        radius,
        sigma,
        threshold,
      ),
    );