Isis 2 Documentation
pix2mm - Convert pixel measurements to millimeter measurements. This perl script handles the conversion of measurments from pixels to millimeters, in preparation for doing a geodetic solution using the RUPG geodesy software. The program takes pixel measurements from digitized images and translates and scales the measurments to get the corresponding location on the camera lens, in millimeters. Additionally, corrections for distortion may be made. The translation and scaling factors used to map from pixels to millimeters depend on the instrument used. Because of some naming conflicts in the FSC's, which are the most reliable indicator this program has of which instrument each measurment came from, the program needs to know the target planet or moon (TARGET) that the images are of. Once it has that information, all conflicts are resolved and the program will figure out what conversions to do automatically. Also, for more complicated conversions and corrections, the image files are needed. This is because the complicated formulas take into account information that is not in the measurement file, but that needs to be extracted from the images. The images are needed for processing of Cassini and Lunar Orbiter data. When working with these instruments, a list of images needs to be specified with the FROMLIST argument. PROGRAMMER: Ben Atkin
Parm | Description | Default |
---|---|---|
MATFROM | qmatch pixel measurement file | NONE |
FROMLIST | List of image filenames (Only needed for LO and ISS) | -- |
RANDTO | Output file (mm measurements) | NONE |
TARGET | The target body (e. g. Io) | NONE |
RESFILE | A reseaux file. | -- |
ADDITIONAL NOTES:
Parm | Description |
---|---|
MATFROM | Pixel measurement data. Coordinates will be used to estimate ground points. |
FROMLIST | List of image filenames. May have paths relative to the current directory, or absolute paths. |
RANDTO | Output file, which will contain a priori data to be used with randlsq. |
TARGET | The name of the target. Can be a planet or moon. |
RESFILE | A reseaux data file. If not specified, a default (in $RUPGDATA) will be assumed. |
Contact us online at the Isis Support Center: http://isisdist.wr.usgs.gov