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TIFF and LibTiff Mail List Archive

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2010.05.23 14:03 "[Tiff] How to descreen bilevel TIFFs into grayscale?", by Oliver Geisen
2010.05.23 21:38 "Re: [Tiff] How to descreen bilevel TIFFs into grayscale?", by Olivier Paquet

2010.05.23 14:03 "[Tiff] How to descreen bilevel TIFFs into grayscale?", by Oliver Geisen

Hello,

i have bilevel TIFFs in high resolution. The contain screeningpatterns which represents gray level, just like you look at printed pictures with a magnifier glass.

Now i want to calc previews from that. I tried to median the bits, but it still has artefacts on it. Is there a tool/way to descreen the rastered data to get better results?

Oliver