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RM SUM3 - SUM/average 2D INTO 3D Fourier Radon transforms

PURPOSE

Adds or subtracts a 2D Fourier Radon transform into or from a 3D Fourier Radon transform. The number of images added is recorded in the 3D transform in each line, so that multiple images from different direction, which represent different common lines can be averaged or subtracted with the correct weight.

USAGE

.OPERATION: RM SUM3

.+ or - : +
[Enter + for addition of file 2 to file 1, - for subtraction of file 2 from file 1]

.3D RADON FOURIER FILE: RADF001
[Enter name of first input Fourier-Radon transform. This file is overwritten.]

.FILE NAME TEMPLATE: RADF***
[Enter name emplate of 2D input Fouier-Radon transform. Projection angles need to be in the file header in position 1 (see ST)]

.ENTER FILE NUMBERS: 1-100
[Enter file numbers of input files.]

.POSITION FOR READING ANGLES: 1
[Enter one of the 3 possible locations where the projection angles in the header of the 2D Radon Fourier transforms are kept. (s. ST)]

.SYMMETRY FACTOR IN PHI: 4
[Currently allows for symmetries only around the z-axis. If a symmetry factor of n is entered, the Fourier-Radon transforms are added in n symmetry related positions.]

NOTES

  1. Developed by M. Radermacher

  2. Not Distributed!

SUBROUTINES

CPUTRM, PUTRM

CALLER

UTIL5

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