[sane-devel] asking for help about GL841

[pchzhang5]

Dear George,
I am a student from China. I 'm very interested in IC GL846 and I have been working for more than half a year on analysing and driving it. for now,I can write some codes to make it work,and I have obtained some scanned  images ,but I have no idea to finish the shading (coarse and fine calibration ?) and gamma calibration ,especially gamma calibration. Have you done some work on it ? Can you help me? 
Thank you ！
 
Best Regards,
Pengchang Zhang
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