That would be great! I would like to have the pixel coordinates relative to the top left corner of the PNG of the DRR. Right now, I am using an Excel template to calculate the coordinates relative to the isocenter selected in 3D Slicer. See workflow below. I am using GIMP to convert the .pfm produced by Plastimatch into a .png.
As a side note, you can see that the contrast in the resulting DRR is suboptimal. I posted a question about this in a separate thread, but haven’t tried the “Plastimatch adjust” functionality yet.