pysteps.nowcasts.utils.compute_dilated_mask#
- pysteps.nowcasts.utils.compute_dilated_mask(input_mask, kr, r)#
Buffer the input rain mask using the given kernel. Add a grayscale rim for smooth rain/no-rain transition by iteratively dilating the mask.
- Parameters:
input_mask (array_like) – Two-dimensional boolean array containing the input mask.
kr (array_like) – Structuring element for the dilation.
r (int) – The number of iterations for the dilation.
- Returns:
out – The dilated mask normalized to the range [0,1].
- Return type:
array_like