- generates a Shepp Logan phantom and the corresponding sinogram.
recon_3a.sci - reconstructs the image using the Convolution Back Projection method.
test_script.sce - a script to test the above codes
Explanations on how to use these are are found in the codes.
The function phantom_2.sci outputs two data files:
and the function recon_3a.sci outputs one: reconstruction.txt
These can respectively be shown as images using the following Gnuplot scripts:
The results are as shown here:
A Matlab version of the codes can be found here: Link. The background of the reconstructed image here looks brighter than the image from Matlab. The reason is that Gnuplot uses a slightly difference grayscale.
Last modified 10 June 2010.