AIPS HELP file for QUANTIZE in 31DEC25

As of Mon Mar 24 13:49:07 2025

HELP SECTION

QUANTIZE
Type:  Adverb (Scalar)
Use:   Specifies the quantization level to be used.  A quantized
       collection of numbers is more compressible and will have only
       marginally greater noise if the quantization level is well
       chosen.  Larger quantization levels will produce better
       compression but can destroy real information if they are too
       high.  QUANTIZE < 1/4 sigma causes only 1-2  percent increase in noise.

Null value:  0 => no quantization.

Tasks:
   FITAB.........Writes data in FITS format to tape and disk.  QUANTIZE
                 is used to quantize images before writing them in
                 integer or floating formats.
Procedures:
   Y2KSAVE.......Verifies correctness and performance using standard
                 problems.

EXPLAIN SECTION