On Oct 10, 2006, at 12:30 PM, [EMAIL PROTECTED] wrote: > On 10/10/06, Alan Bowen <[EMAIL PROTECTED]> wrote: >> If this is OT, my apologies to all. >> >> I am currently using ConTEXt to produce PDFs with a colored >> background which I specify using R G B settings. Unfortunately, this >> background does not look the same when others open the files on their >> computers. Is there anything I can do at my end to correct this? > > There are well-known differences between various computer brands, and > individual PC's generally vary widely. If you need really good > agreement, then all the systems need to be viewed under similar light > conditions and calibrated (e.g., using a colorimeter, or at least the > GretagMacbeth ColorChecker, a printed chart) and you want to generate > PDF's with a specific colorspace (not just deviceRGB). For most > purposes, it seems to work to use a rough "sRGB" setting where you > adjust the monitor (brightness, contrast) to approximate gamma=2.2. > Check this with: > <http://www.normankoren.com/ > makingfineprints1A.html#Monitor_test_pattern>. > > Many LCD's and worn-out CRT's like the ancient NCD on my desk will > fail even this simple test. > > -- > George N. White III <[EMAIL PROTECTED]> > Head of St. Margarets Bay, Nova Scotia
Henning and George— Thanks for the replies. I had suspected that I was at the start of a search for yet another Holy Grail. Still, I will look into this sRGB (which is new to me), but first I had better see if I can calibrate my own monitor properly. (It failed the Monitor test.) Alan _______________________________________________ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
