Hi, On Sun, 2009-06-07 at 13:42 -0500, DJ wrote:
> The original tutorial that I was following at > http://digital-photography-school.com/precise-color-cast-correction-with-gray-fill-layers > had the user add a temporary 50% Gray Layer (7f7f7f), Mode: Difference > to find a gray point. I manually picked the point, wrote it down on a > piece of paper, and then relocated that point in the Levels Dialog. I > had asked the question, is there another way to remember this x/y > location. This is where the Sample Points Dialog was suggested to > record the location, I think, rather than writing it down on a piece > of paper. It's a nice idea and Dialog. Probably the easiest way to mark a point is to use two rulers. But sure, the sample points can also be used for that. The grey-point picker in the GIMP levels tool doesn't require you to pick a perfectly gray point though. It is totally sufficient to pick a point that is supposed to be some shade of gray. Basically any surface that should be white will do it. The actual luminance is not relevant. Sven _______________________________________________ Gimp-user mailing list [email protected] https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
