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This code takes a voxelised object and represents the shape of the object by computing a set

of Zernike moments. It is also able to take a set of moments and from them reconstruct a

voxelised object. Code is present that will load a pdb (protein databank) file and creat

a voxelised object from the protein structure.

The code was used in scientific research and as far as I know is correct. However it is

mostly uncommented and can be improved in many ways. For further details please see the

article:

Grandison S., Roberts C., Morris R. J. (2009)

The application of 3D zernike moments for the description of "model-free" molecular

structure, functional motion, and structural reliability

Journal of Computational Biology 16 (3) 487-500

DOI:10.1089/cmb.2008.0083