At one time I wanted to see if I could pre-deconvolve what's shown on a computer screen so that a person with a slight vision problem could use it without having to wear glasses, using their blurry eyes to convolve the images back to the original image. I found a paper/website that did this (can't find it anymore), with some example images of text, and it worked fairly well, but spatial resolution was very limited.
One interesting limitation is that negative brightness is needed to make it work without distortion. Limiting the brightness range of the image, so that black can act as a sort of "darker than possible" level helps.
One interesting limitation is that negative brightness is needed to make it work without distortion. Limiting the brightness range of the image, so that black can act as a sort of "darker than possible" level helps.