Notes:
- By default, the REC files will be processed separately, as if the program was run
  once for each REC file.
- If the -p option is used, the SI vector and gradient matrix will be N times longer
  where N is the number of REC file/dpf file pairs
- Should always use some threshold value to get around low signal data outside the head.
- All data is output in little endian floating point data except tensor and color map.
- The FA and VEC output may be loaded directly into DTIStudio to create fiber tracks.

- The --remove-gradient-directions <grad-dirs> is defined as follows:
		<grad-dirs> := <grad-slice>[,<grad-slice>...]
		<grad-slice>:= [<gradients>]:[<slices>
		<gradients> := <number> | <number>-<number>
		<slices> := <number> | <number>-<number>

-  The gradient number starts from 0 ane follows exactly what is the in 
   DPF or .grad file.

So what does all this mean??  You can do things like:

--remove-gradient-directions 10,11, 12
   which will remove gradients 10, 11 and 12

--remove-gradient-directions 3:1-4
   which will remove gradient 3 from slices 1 through 4

--remove-gradient-directions 3-5:5-10
   which will remove gradients 3, 4 and 5 from slices 5 through 10

*** Note:  ZERO-BASED! gradients and slices

Written by Craig Jones (craig@mri.jhu.edu).
Use at your own risk!!
