Suppose a photograph with text and numbers. I want to manage it in my editor with tools such as grep, standard text-processing things such as Vim's block-highlighting and also more advanced things such as Gimp's magic-wand-style pattern highlighting. How?
This puzzle breaks down at least to parts
- OCR -- character recognization
- DSP -- proximity -algos, all puzzles not yet known
- Ascii-art -- creating fillers and "decorators" (not technical term)
For the sake of simplicity, suppose the writing is line-wise so you do not need to consider reprocessing multiple-lined documents. There is some working-prototype that does pretty good job in small scale with LaTex here, the multiple lined problem follows later.