Also, the last time I checked tesseract liked stuff to be 200-300 dpi. (You don’t have to scan it at that resolution, but helps if you scale it up.)
Years ago, I dug up a couple of papers on the spine thing, but never got around to implementing it. I think you can estimate the curvature based on the shadow and dewarp.
I was just scanning some recipes to save typing, so it wasn’t really worth the efffort.
I ended up using this guy's tool[1] for dewarping, which worked pretty well. The tool was more a prototype than anything, but it was enough to finish my project.
Years ago, I dug up a couple of papers on the spine thing, but never got around to implementing it. I think you can estimate the curvature based on the shadow and dewarp.
I was just scanning some recipes to save typing, so it wasn’t really worth the efffort.