[Sugar-devel] De-yellowing page images?

[James Simmons]

Thomas,

Thanks.  If this works I'll write it up in the book.

James Simmons


On Mon, May 10, 2010 at 10:33 AM, Thomas C Gilliard
<satellit at bendbroadband.com> wrote:
> Gimp 2.6.6
> Image/Mode/grey scale
> Colors/Brightness-Contrast
> Brightness 101
> Contrast 62
> see attached .jpg
>
> Not sure how to batch this
>
> Tom Gilliard
>
> 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?
>>
>> Thanks,
>>
>> James Simmons
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>>
>>
>