Ten particles move linearly at various speeds. For each pixel, create a list of the distances from that pixel to each particle. Sort the list. Create the adjacent difference set of this list (i.e., if the sorted list is a,b,c, ..., the adjacent difference set is a-b, b-c, ... ). Calculate the standard deviation of this set. Each pixel is colored a grey level related to this standard deviation.
Made with Processing ( processing.org ).
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