`astropy.io.fits.hdu.compressed._codecs:Rice1`

source: /astropy/io/fits/hdu/compressed/_codecs.py :230

Signature

class Rice1 ( * , blocksize : int , bytepix : int , tilesize : int )

Members

Summary

The FITS RICE1 compression and decompression algorithm.

Extended Summary

The Rice algorithm ^[1] is simple and very fast It requires only enough memory to hold a single block of 16 or 32 pixels at a time. It codes the pixels in small blocks and so is able to adapt very quickly to changes in the input image statistics (e.g., Rice has no problem handling cosmic rays, bright stars, saturated pixels, etc.).

Parameters

blocksize: The blocksize to use, each tile is coded into blocks a number of pixels wide. The default value in FITS headers is 32 pixels per block.
bytepix: The number of 8-bit buffer in each original integer pixel value.

Aliases

astropy.io.fits.hdu.compressed._codecs.Rice1