.IS THIS A FOURIER TRANSFORM (Y/N)?: Y
[If the input file is a Fourier transformed Radon transform
answer Y. Currently there is no information in the file
header of Radon transforms that identify if it is in real
or Fourier space.]
.OUTPUT FILE: RECON001
[Enter name of output file.]
.ENTER X,Y DIMENSIONS: 64,64
[Enter ther dimensions of the backtransformed image.]
.OBJECT DIAMETER: 50
[Enter the diameter of the object in the output image. If
this is not known, use the longer of the image dimensions.]
.WEIGHTING FUNCTION DOC-FILE: WDOC001
[Enter the name for a document file that will contain the
weighting function. This can be used e.g. to produce a plot
of this function. It will be well behaved up to the resolution
limit defined by Bracewell's/Crowther's formula: N=pi*D/r.]
.INCLUDE LOW-PASS FILTER (Y/N)?: Y
[If Y is answered a fermi low-pass filter will be applied to the
weighting function. The radius of this filter is calculated from
Crowther's formula.]
NOTES