| -type bit | Type of composite mask: uniform/bit/level. |
| -verbose 7 | Verbosity of output. |
| -datatype u | Force writing of a new data type. |
| -sampling 1.5,1.5,1.5 | Sampling (A/pixel; a single value can be given). |
| -origin 0.8,-10,15.7 | Set the origin (default from input image). |
| -output output.img | Output image (default sum.map). |