Isis 2 Documentation
lev1tolev1 - Match two level 1 images This program can be used to transform one level 1 image to match another level 1 image. For example, a level 1 MOC red image can be transformed into the same geometry as a level 1 MOC blue image. Likewise, a level 1 Viking image can be transformed into the same geometry as a level 1 MOC red image. Of course the target for both level 1 images must be the same. The ability to make ths transformation is useful for geometrically calibrating instruments or co-registering different data sets. The program outputs a transformation file (tfile) which must be used as input to the "geom" program along with the image to transform. PROGRAMMER: Jeff Anderson, USGS, Flagstaff, Az
Parm | Description | Default |
---|---|---|
FROM | Input "level 1" cube name to transform (default extension is .cub) | NONE |
FROM2 | Input "level 1" cube name to match (default extension is .cub) | NONE |
TFILE | Transformation file (no default extension) | tfile.dat |
RETEST | Grid spacing for retesting |
ADDITIONAL NOTES:
Parm | Description |
---|---|
FROM | Input cube file name. If the file extension is omitted, then ".cub" will be assumed. This cube will be transformed to match the cube specified by FROM2. |
FROM2 | Input cube file name. If the file extension is omitted, then ".cub" will be assumed. The cube specified by FROM will be transformed to match this cube. |
TFILE | This is the name of the transformation file (tfile) to be generated. The input cube (FROM), along with this tfile must be input into the program "geom" in order to produce the new level 1 cube. |
RETEST | This parameter is used to request retesting of tiles whose corners and center value map off the input image. If this parameter is set the program will retest the tile searching for valid data every RETEST pixels across and down the tile. This parameter should be used if the data contains fine pieces that extend outside a box region. Only values equal to 4 to the n power can be used for tilesize (1, 4, 16, 64, ....). |
Contact us online at the Isis Support Center: http://isisdist.wr.usgs.gov