Computes the 2D maximal height surface created by placing an inverted parabola over each non-zero pixel of the input image, where the pixel's value is the height of the parabola. Viewed as a binary image (zero/not-zero) this is equivalent to buffering each non-zero input pixel by the square root of its value, in pixels.
The input image.
|Integer, default: 256|
Neighborhood size in pixels.
|String, default: "pixels"|
The units of the neighborhood, currently only 'pixels' are supported.