Isis 2 Documentation
mer_darkcorr - Apply dark current correction to MER MI images MER_DARKCORR is tae procedure that call perl scipts to perform dark current corrections on MER microscopic imerger images. You can produce one of two output file types with this procedure. 1. The standard output is a dark current corrected image that has had referance pixel varence, zero exsposure vareance, and active are vareance removed from the input image. The output image is output is output with "darkcorr.cub" appened to the core name of the input cube. 2. you can also enter -- for the parameter actarea and the procedure to produce an image that has referance pixel varence and zero exsposure corrected but no active area correction is made. This is done so the images can be used in the generation of a active area varenance model. the out images have "darkcorr_noact.cub" appened to the core name of the input cube.
Parm | Description | Default |
---|---|---|
FROM | single input file | -- |
FROMLIST | List of input files | -- |
TEMP_OFF | Temprature offset value | |
OUTTAB | Output table of values and statistics | -- |
PATH | Directory path to tables and models | $ISISMERDATA/ |
U_CCDTEMP | Entered CCD temp to replace bad label temp | -- |
U_PCBTEMP | Entered PCB temp to replace bad label temp | -- |
REF_PIX | Rererance pixel in correction | YES |
ZERO_EXP | Zero exsposure in correction | YES |
ACT_AREA | Active area in correction |
ADDITIONAL NOTES:
Parm | Description |
---|---|
FROM | Input an individual MER MI image. This image must be an ISIS formatted cube file. You can get and ISIS cub by running the ISIS prgram, PDS2ISIS. The output from will be a cube that has had "_darkcorr.cub" appended to the name. |
FROMLIST | A single colume list of MER MI images that are ISIS formatted cubes. This list should NOT contain refrence pixel images or thumb nails. The output will be an ISIS cub that has had, "_darkcorr.cub" appended to the name. |
TEMP_OFF | This parameter is a temperature offset that is applied to the CCD temperture. For thermal vac data we have been using 0 as the offset. For ATLO and flight images -2 is the value entered. |
PATH | This is the full directory path to the table files and varance models that areused in the dark correction algorithm. At present this script is designed to get all the tables and models from a single area. If this script is run in flagstaff, that area is: /home/bsucharski/tools/MER/merdat/ In this directory you will find: mer_20030714.tbl - A table that contains values for the 105 and 110 camera REFPIXVAR_105.cub - The 105 referanc pixel vareance model REFPIXVAR_105.cub - The 110 camera referanc pixel vareance model ZEROEXPVAR_105.cub - The 105 camera zero exsposure varance model ZEROEXPVAR_105.cub - The 110 camera zero exsposure varance model ACTAREVAR_MI105_20030725.cub - The 105 camera active area vareance model ACTAREVAR_MI110_20030806.cub - The 110 camera active area vareance model If this script is run outside Flagstaff, you will need to have an area where these files can reside. |
U_CCDTEMP | If the CCD temprature information in the image labels is suspect, the user can enter a new temprature value that will replace any CCD temprature in the image lables. If this parameter is left as a null then the script will use the value in the image lables. |
U_PCBTEMP | If the PCB temprature information in the image labels is suspect, the user can enter a new temprature value that will replace any PCB temprature in the image lables. If this parameter is left as a null then the script will use the value in the image lables. |
REF_PIX | If this parameter is set to NO them the referance pixel corrections will NOT be made during the dark current calibration step. |
ZERO_EXP | If this parameter is set to NO them the zero exsposure corrections will NOT be made during the dark current calibration step. |
ACT_AREA | If this parameter is set to NO them the active area corrections will NOT be made during the dark current calibration step. |
Contact us online at the Isis Support Center: http://isisdist.wr.usgs.gov