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Algorithm description section 6.1 https://fits.gsfc.nasa.gov/registry/tilecompression/tilecompression2.3.pdf

Comparison compress methods for FITS: https://arxiv.org/pdf/0903.2140.pdf

Transpiled port of ricecomp.c in CFITSIO to Rust. 

The C version was originally written by Richard White at STScI and made available for use in CFITSIO in July 1999.