On Fri, 19 Oct 2007, Greg Troxel wrote: > How feasible would it be to use an IT8 target to calibrate a > decent camera (i.e. manual exposure, RAW capture), and then turn around > and use that to calibrate a computer monitor? I tried awhile back, but > got bogged down trying to do the necessary table flipping. > > The big problem in the approach you describe isn't inverting the tables > - that's certianly confusing but can be figured out. It's accounting > for the lighting on the IT8 - you need a controlled light source to make > a meaningful profile. When you did this, what light source did you use > to illuminate the IT8, and what you were thining about how that related > to the white point of the display? > > I have found that when I take pictures of displays they often come out > badly. But I haven't tried with a tripod and a longish exposure, to get > well past the refresh rate. > > But, I think that what you suggest is doable, and you may want to check > out http://lprof.sourceforge.net/ as a starting point or a framework for > your efforts. > Oh yeah.... I think that was where I'd discussed it in the past. Whoops.
-Cory -- ************************************************************************* * Cory Papenfuss, Ph.D., PPSEL-IA * * Electrical Engineering * * Virginia Polytechnic Institute and State University * ************************************************************************* ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Lcms-user mailing list Lcms-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lcms-user
