= Compression =

[[wiki:LSSTDatabase LSST Database]]


== Database ==

 * [wiki:FloatCompression Float compression in database]
 * [wiki:MyIsamCompression MyISAM Compression Evaluation]
 * [wiki:faintSourceCompression ForcedSource Table Compression]

== Images ==

 * [http://archive.noao.edu/doc/SDM_fpack_usernotes.html FITS Tile Compression using FPACK], by Rob Seaman
 * [http://heasarc.gsfc.nasa.gov/fitsio/fpack/ fpack homepage]
 * Astronomical Tiled Image Compression: How & Why, Rob Seaman, [http://heasarc.gsfc.nasa.gov/docs/software/fitsio/fpack/O1.5.pdf pdf]
 * [http://arxiv.org/pdf/0910.2375v2 What bandwidth do I need for my image?]
 * [http://heasarc.gsfc.nasa.gov/docs/software/fitsio/fpack FPACK FITS Image Compression Program]
 * [wiki:compressionAtIPAC Compression at IPAC]
 * [wiki:compressionSDSS Compression of SDSS at FNAL]
 * [http://www.adass.org/adass/proceedings/adass98/nieto-santistebanma/ 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 ||