Compression
Database
Images
- FITS Tile Compression using FPACK, by Rob Seaman
- fpack homepage
- Astronomical Tiled Image Compression: How & Why, Rob Seaman, pdf
- What bandwidth do I need for my image?
- FPACK FITS Image Compression Program
- Compression at IPAC
- Compression of SDSS at FNAL
- Data Compression for NGST, Maria Nieto-Santisteban
- Simple experiment:
| Raw CFHTLS-D4 MEF image file | 707908o.fits | 707,330,880 bytes | |
| Naive gzip of original file | 707908o.fits.gz | 415,726,749 bytes | 58.8% of original |
| fpack 1.2.0 default tiled Rice compression | 707908o.fits.fz | 334,419,840 bytes | 47.3% of original |
