Running DataGeneration.py with the specification will give you the datas.
scf is the configuration for the synthesizer class, should be left alone for this case.
The function generator_sampling will sample the images sampling_times times. This functions calls generate_voronoi which creates the base voronoi diagram.
The function takes a config for the voronoi diagram, min cells, max cells etc. You can play around with this to get different results.