| MA L | [Mask - line across image] |
| MA X | [Mask - image in X direction] |
| MA Y | [Mask - image in Y direction] |
| MA Z | [Mask - image in Z direction] |
| MM | [Mask Multiplication] |
| MM C | [Mask Multiplication - Continuous] |
.OUTPUT FILE: PIC002
[Enter the name of the output file.]
.OUTER & INNER RADII: 12.0, 0.0
[Enter the radii of the outer and inner mask circles, in
pixels. Pixels in areas outside the outer radius and inside
the inner radius are set to background. Enter zero inner
radius for no inner radius masking. Enter zero outer radius
for inner masking only.]
.(D)isk, (C)osine, (G)aussian edge, or (T)rue Gaussian: D/C/G/T
[Enter 'D' for sharp profile cutoff.
Enter 'C' for piece-wise mask with no modification inside
the mask range, and cosine-shaped falloff outside
this range.
Enter 'G' for piece-wise mask with no modification inside
the mask range, and Gaussian-shaped falloff
outside this range.
Enter 'T' for true Gaussian mask.]
.(A)V, (P)REV AV, (C)IRCUMF, OR (E)XTERNAL: P
[Enter 'A' to set background to the average before masking.
Enter 'P' to set background to the average after masking.
Enter 'C' to set background to average along the border of the mask.
.
Enter 'E' to specify the background. ]