[sane-devel] gain/offset tables

nathan rutman nathan@gordian.com
Mon, 05 Nov 2001 13:33:22 -0800


Thinking about the calibration routine for my scanner (Canon FB630U),
seems to me this is probably a common issue. 

There's a black and a white scannable area inside the housing of my
scanner.  It looks like I need to convert scans of these areas under 3
different lighting conditions into the per-ccd-element gain/offset
tables.  ("Looks like", because that's what the Windows driver seems to 
do.)

Anyone's scanner do something similar?  Got code or math I can steal?


--
nathan@gordian.com