site_archiver@lists.apple.com Delivered-To: darwin-kernel@lists.apple.com On 9 Mar 2006, at 02:45, wlq wrote: Thank you. I have done it and It works well. But, the table is not large enough to fill all the point. -- Graham Lee GPG Key ID: 01D5B9D8 UNIX Systems Manager, Oxford Physics Practical Course http://users.ox.ac.uk/~wadh1342 01865 273450 _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.a... This email sent to site_archiver@lists.apple.com OK, you can interpolate between table entries for points which aren't covered in the table. A linear correction might be good enough, but I wonder whether there's a straightforward way to devise a quadratic correction, given that gamma is "about 2"[*] for a lot of display equipment. [*]I think it's 1.8 for almost all CRTs and 2.2 for some old-school Macintosh displays. smime.p7s