| -h | Help, prints usage message. |
| -L | Input file which contains the list of 2D Woolz contour image file names. |
| -s | Output file for surface points. |
| -t | Input number to decide track down or up, with 0 - track down (the default) and 1 - track up. |
| -o | Output file to show the shells and loops. |
| -O | Output file for surface points and their distance to the surface. |
| -n | Number of pixels for z-direction of vtk contour. |
| -d | Maximum distance in number of pixels allowed to be tracked, default 10. |
| -f | Distance in number of pixels for in and out points, default 15. |
| -F | Distance in number of pixels for in and out points guid, default is 15. |
| -g | Number of files to tack up or down, default is 5. |
| -G | Start tracking file number (counting from 0), default 5. |
| -j | Length to be used to segment the line in unit of number of pixels, default 40. |
| -C | Length to be used to sample the data in unit of number, default 30. |
| -l | Number of lth loop for output. |
| -a | Start shell number (not index) for tracking. |
| -A | End shell number (not index) for tracking. |
| -b | Start section number for tracking. |
| -B | End section number for tracking. |