[sane-devel] gamma tables
emailgrant at gmail.com
Fri Jul 30 18:43:38 UTC 2010
> First you must make sure that the backend you are using supports the
> gamma table options. Some do not, and just have brightness/contrast
> type controls.
I can use either the epson2 backend or epkowa and I think one or the
other supports gamma tables. Can you tell me how to determine the
gamma, shadow, and highlight values?
>> Since my scans are for on-screen display only, I'd like to use a gamma
>> table in place of an ICC profile. It sounds like I need to determine
>> values for gamma, shadow, and highlight so gamma4scanimage can
>> generate the gamma table. How can I determine those values? Am I
>> supposed to scan targets?
>> - Grant
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