attenuation_coefficients_to_projections.cxx File Reference

Takes the logarithm of attenuation coefficients to 'convert' them to line integrals. More...

#include "stir/ProjData.h"
#include "stir/ProjDataInterfile.h"
#include "stir/Viewgram.h"
#include "stir/ArrayFunction.h"
#include "stir/thresholding.h"
#include "stir/warning.h"
#include <iostream>

Functions
int	main (int argc, char *argv[])

Detailed Description

Takes the logarithm of attenuation coefficients to 'convert' them to line integrals.

Usage

attenuation_coefficients_to_projections \
     --AF|--ACF <output filename > <input proj_data file name>

Use –AF if input are attenuation factors, –ACF for attenuation correction factors (i.e. the inverse of the former).

Warning

Currently thresholds ACF values to maximum 150 (and AF to minimum 1/150) to prevent log() to grow too large.

Todo:

get threshold from command line

Author

Kris Thielemans