-h | Help, prints usage message. |
-o | Output file name for affine transform. |
-i | Initial affine transform object. |
-n | Use Gaussian noise (may be useful inplace of a window function). |
-r | Find the rigid body (aka registration) transform, default. |
-t | Find the translation only transform. |
-w | Window function name, this must be one of: blackman, hamming, hanning, none, parzen, rectangle or welch. |
-R | Maximum rotation. |
-T | Maximum translation. |
-V | Invert grey values. Objects must have the background with low and the foreground with high values. |