0 Vote what was the contrast of the gabor? Viewed 107 times I am unfamiliar with "peak to trough" contrast, usually we express it as peak to mean (Weber) or peak-trough / peak + trough (Michelson). Is 40% peak to trough the same as 20% Michelson? ((the answer is Yes, see below)) Scott Stevenson • 4 • 24 Aug 2015 7:21pm edited 2015-09-16T14:12:28+00:00 waiting for moderation