|  |  |  | dir2amp |  | 
|---|
convert directions image to amplitudes.
syntax: dir2amp [ options ] directions amplitudes
| directions | the input directions image. Each volume corresponds to the x, y & z component of each direction vector in turn. | 
| amplitudes | the output amplitudes image. | 
| -info | display information messages. | 
| -quiet | do not display information messages or progress status. | 
| -debug | display debugging messages. | 
| -help | display this information page and exit. | 
| -version | display version information and exit. |