Good question :) I needed a quick way to hack the output of 2D float data (pixel annotations to complement some image) into some legacy C without adding depend

Good question :) I needed a quick way to hack the output of 2D float data (pixel annotations to complement some image) into some legacy C without adding dependencies. Thanks to CImg, I can read and display the PFM files in 10 lines of my own C++. I thought about just writing a width/height-annotated binary blob instead, but then realized that's really what PFM already is. I have no idea if anything is really using PFM. I certainly have not found any "big" compatible programs.