[Sugar-devel] De-yellowing page images?

[Jonas Smedegaard]

On Mon, May 10, 2010 at 10:19:13AM -0500, James Simmons wrote:
>I'm asking this question here because at the moment I don't know where 
>else to ask.  The question relates to the Reading And Sugar book I'm 
>doing.
>
>I'm scanning in book pages of a book printed in 1928.  The pages are 
>quite yellow, but readable.  A sample is at:
>
>http://en.flossmanuals.net/bin/view/ReadingandSugar/ScanningBookPages
>
>I'd like to lighten or remove the yellowing from the pages to make the
>book more attractive.  Maybe leave the text alone and replace
>everything else with white.  I tried different things with GIMP
>without much luck.  Any ideas?

Perhaps simply scan in greyscale rather than color?

Also, you might be interested in postprocessing with unpaper: 
http://unpaper.berlios.de/


Kind regards,

  - Jonas

-- 
* Jonas Smedegaard - idealist & Internet-arkitekt
* Tlf.: +45 40843136  Website: http://dr.jones.dk/

  [x] quote me freely  [ ] ask before reusing  [ ] keep private
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