fpack-4.0.0-2.fc36.x86_64

fpack optimally compresses FITS format images and funpack restores them to the original state.

• Integer format images are losslessly compressed using the Rice compression algorithm. typically 30% better compression than GZIP about 3 times faster compression speed than GZIP * about the same uncompression speed as GUNZIP
• Floating-point format images are compressed with a lossy algorithm truncates the image pixel noise by a user-specified amount to produce much higher compression than by lossless techniques the precision of scientific measurements in the compressed image (relative to those in the original image) depends on the selected amount of compression