blurImage function
Blurs an ImageData
structure in-place, blurring each of the RGBA layers independently by
applying an horizontal blur of radius rx and a vertical blur or radius
ry (which defaults to rx). Returns the blurred ImageData.
Implementation
({List<double> data, int width, int? height}) blurImage(
({List<double> data, int width, int? height}) data, int rx,
[int? ry]) =>
_blur2(_blurfImage)(data, rx, ry);