Image Processing

A freely available image processing package GRIP (Groningen image processing), has been developed, which is aimed at 2D image analysis of 2D protein crystals and single particle analysis. Routines for use on clusters of computers have been and are still being developed, using LAM/MPI parallel computing libraries, to increase processing speed of large data sets. Images made with other packages and on machines with other hardware architecture than the target machine are automatically converted.

The program can also be used as an easy to use interface to the 3D image analysis programs from the MRC labs in Cambridge. It adds display functionality and routines for lattice refinement, origin refinement and symmetrisation of structure factors.

The Grip image format is compatible with the IMAGIC image format. Going from 2D to 3D (for single particles) the EMAN package fits seamless together with Grip.