.DIMENSIONS (NX,NY,NZ): 64,64,1
[Enter the dimensions of the output image/volume.]
.USE AVERAGE FROM ANOTHER IMAGE AS BACKGROUND? (Y/N): Y
[Enter whether the background should be taken as the average of another image, or should be entered by the user.]
The output will now be a picture of size 64x64, and it will contain a background that is the average of the reference file image.