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ISIS Documentation

marcical

This program calibrates MARCI images

This program applies a flat-field correction for each framelet based on the band's filter number. In order to output in I/F units, the cube must have spice data. This calibration problem follows the algorithms described the document titled:

Mars Reconnaissance Orbiter Mars Color Imager (MARCI):
Instrument Description, Calibration, and Performance

J.F. Bell III, M.J. Wolff, M.C. Malin, W.M. Calvin, B.A. Cantor, M.A. Caplinger, R.T. Clancy, K.S. Edgett3, L.J. Edwards5, J. Fahle, F. Ghaemi, R.M. Haberle, A. Hale, P.B. James, S.W. Lee, T. McConnochie, E. Noe Dobrea1, M.A. Ravine, D. Schaeffer, K.D. Supulver, and P.C. Thomas

Categories


History

Steven Lambright2009-01-21 Original version
Steven Lambright2009-03-03 Added lookup table
Steven Lambright2009-04-09 Fixed a problem where segmentation faults would occur if run with the option "IOF=false"
Janet Barrett2014-07-01 Added code to obtain exposure times from $mro/calibration/marci/varexp.tab so they can be used when calibrating the input image. Also had to handle images that have been flipped by marci2isis. Fixes #1860.
Moses Milazzo2014-12-08 Fixed a bug in exposure time accounting. Fixes #1860.
Stuart Sides2019-11-08 Modified to use the exposure duration from the new label keywords added by marci2isis. Related #2034
Lauren Adoram-Kershner2022-07-15 Implimented step 3 of marci calibration description, where if normalized flatfile DN value is less than 0.25, the output cube DN is set to 0.

Parameters

Files

This is the non-flat-field corrected, unprojected MARCI cube
Type cube
File Mode input
Filter *.cub

This is the flat-field corrected MARCI cube
Type cube
File Mode output
Pixel Type real
Filter *.cub

Options

This makes the output MARCI image in I/F units instead of radiance
Type boolean
Default true
Filter *.cub