Output size of inverse Radon Transform

Hi, I am trying to use the concept of radon transform technique. My input image is of size 832 X 128. I am able to do the radon transform, but while reconstructing, my output image is of size 832 X 832(since I used output_size = max(size(input_image))). But I want my output image to be of same size like my input(i.e. 832 X 128).

I tried different ways in order to make my output look like 832 X 128, but failed. The thing is that, in this technique, output_size parameter is a scalar(can take only single value). And so I am getting my output data as a square matrix.

What can I do in order to get output as 832 X 128?.

Thanks for your help..