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Any one have any clues to what kind of magic I should ask my favourite image editor to perform in order to reduce the background noise of my scanned pages. I have tried working with saturation, hue, rgb-channels, contrast etc and the result is becomes better than the one straight from the scanner, but not as good as the Google books. My improvements are by change since I am clueless at this. Any one with some general advice on the matter or perhaps a linky?
Of course it would depend on a lot of factors how one should behave oneself to get the best result, but there should probably be some general rules or principles on the matter. (Trying to use Irfanview which has batch processing with advanced options. The point is to get them to my Cybook in one piece without any OCR)
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