| -slices 3,4 | Montage a 3D image in columns and rows (0,0: automatically calculated). |
| -images 3,4 | Montage 2D images in columns and rows (0,0: automatically calculated). |
| -flip y | Flip panel order on the x and/or y axis. |
| -verbose 7 | Verbosity of output. |
| -datatype u | Force writing of a new data type. |
| -first 12 | First slice in 3D or first 2D image (default: 0). |
| -skip 2 | Number of slices or images to skip (default: 0). |
| -pad 5 | Padding to add around slices or images (default 0). |
| -fill 127 | Fill value for padding (default average). |