.OUTPUT FILE: OUT001
[Enter name of image file where contoured file is to be put.
.NUMBER OF CONTOUR LEVELS: 5
[Enter number of contour levels desired. Note that these include the levels FMAX, FMIN which are often only assumed by one point each. Therefore, for a specification of 5 contours, only 3 contour lines will be visible.]
.OVERWRITE (Y/N): Y
[This option specifies the output file format: Enter 'Y' if you want to have the contour lines superimposed on the input picture; enter 'N' if you want to have the contour lines only.]
.WHITE, BLACK, OR ADJUSTED CONTOURS (W/B/A)?: A
[Enter 'W' for white contours (i.e., maximum density), 'B' for black contours (i.e., minimum density), or 'A' for contours of maximum or minimum density, depending on the density of the surrounding image.]