Inspired by this thread (Processing RAWs for HDR displays in Darktable), and by some UltraHDR pictures a friend took, I spent some time recently digging into existing tooling for generating these types of pictures, and wanted to share my progress in the hopes that people with more understanding can improve my process. I did a lot of searching around to see if there were any other tools available for manual creation of UltraHDR photos, and couldn’t find much, so hopefully this is helpful to some ...