vectorization

Functions

denoise(mask, diameter)	Apply morphological opening /w circular kernel to remove hi-freq noise.
get_kernel(rectangle[, width_factor, thickness])
get_rectangle(buildings)
mask_to_building_polygons(mask[, transform, ...])	Try to break up building clusters and then convert to polygons.
mask_to_polygons(mask[, transform])	Polygonize a raster mask.