O is implemented in C and runs Sun SparcStations under Unix and Motif and under VMS on Vaxes. MVP is currently operational and in use by analysts at JPL’s Multimission Image Processing Laboratory (MIPL) for ra- diometric correction, color triplet reconstruction, and sim- ple mosaicking tasks. An expert analyst estimated that for these tasks MVP reduces effort to generate an initial PDF for an expert analyst from 1/2 a day to 15 minutes and reduces the effort for a novice analyst from several days to 1 hour.