generate maps of tensor-derived parameters.
| -adc image | compute the mean apparent diffusion coefficient (ADC) of the diffusion tensor. 
| image | the output mean ADC image. |  | 
| -fa image | compute the fractional anisotropy of the diffusion tensor. 
| image | the output fractional anisotropy image. |  | 
| -num image | specify the desired eigenvalue/eigenvector(s). Note that several eigenvalues can be specified as a number sequence. For example, '1,3' specifies the major (1) and minor (3) eigenvalues/eigenvectors (default = 1). 
| image | the mask image to use. |  | 
| -vector image | compute the selected eigenvector(s) of the diffusion tensor. 
| image | the output eigenvector image. |  | 
| -value image | compute the selected eigenvalue(s) of the diffusion tensor. 
| image | the output eigenvalue image. |  | 
| -mask image | only perform computation within the specified binary brain mask image. 
| image | the mask image to use. |  | 
| -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. |