| -verbose 7 | Verbosity of output. |
| -datatype u | Force writing of a new data type. |
| -truncate -0.5,1.2 | Truncate data to minimum and maximum before edge operation. |
| -size 4000,4000,10 | Size of region inside edge (default 90% of image size). |
| -origin 2500,1500,5 | Edge origin (deprecated). |
| -start 2500,1500,5 | Start of edge (default 5% from image origin). |
| -gausswidth 80 | Gaussian width (default 10% of x dimension, <0 inverts selection). |
| -edgeshape oval | Edge shape (default rectangular, oval, cylindrical). |
| -fill 150 | Fill value for background (default average). |
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