Blurs the given ImageData in-place, blurring each of the RGBA layers independently by applying an horizontal blur of radius rx and a vertical blur of radius ry (which defaults to rx). Returns the blurred ImageData.
Optional
Blurs the given ImageData in-place, blurring each of the RGBA layers independently by applying an horizontal blur of radius rx and a vertical blur of radius ry (which defaults to rx). Returns the blurred ImageData.