Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

I´ve got an jpeg image with text on it (badly scanned document), which is hardly readable. I have already played around with the sharpen filters, contrast, levels and the color replacement tool, with decent success. however my question is, what else can be done order to maximize the texts readablity? the picture is also somewhat noisy. Any help on this one would be greatly apreciated, since I absolutely need the images content.

share|improve this question

migrated from stackoverflow.com Jun 17 '10 at 2:06

This question came from our site for professional and enthusiast programmers.

    
are you trying to read it programatically, or just trying to make it legible for human eyes? –  Nathan Fellman Jun 17 '10 at 5:38
add comment

2 Answers

Sharpen filters, contrast, levels, and the color replacement tool are about the best you're gonna get.

There's no special 'black magic' tool to do this sort of thing because it can't be done. With raster graphics if the image is pixellated beyond recognition and there's no source image of higher quailty available there's not much you can do.

share|improve this answer
add comment

Sometimes "Convolution filter" with appropriate coefficients may help. It can blur a bit or sharpen a bit image in a flexible way.

You can also do "High Pass" filter (or duplicate layer, Gaussian blur it, set opacity to 50%, invert and merge) prior to adjusting levels and contrast.

share|improve this answer
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.