From CCP4 wiki
- a simple, non-compressed data frame format is the SMV file format
- a self-documenting data frame format, which supports compression, and is under GPL/LGPL license, is the CBF format. imgCIF/CBF is a format for image data, such as synchrotron diffraction images. CBFlib is a software package supporting the imgCIF/CBF format. For background information, see Hall and McMahon, International Tables for Crystallography, Volume G, Definition and exchange of crystallographic data, IUCr, Springer, 2008, Dordrecht, NL, esp. chapters 2.3, 3.7, 4.6 and 5.6.