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All's jazzy and unstable on the colour front: the impact of Gregory's pioneering paper on vision at equiluminance.

Comments on an article, Vision with isoluminant color contrast: 1. A projection technique and observations by R. L. Gregory (see record 1977-28590-001). My research in 1977 was mostly about memory but in 1979 I attended a SIGGRAPH conference in Chicago where Richard presented his demonstrations of the loss of face recognition with an image having colour but no luminance contrast. The effect was magical, and I abandoned my memory studies, bought all sorts of computer gear to capture the world on video and turn it into pure colour, stuck every imaginable image under the camera and within two days, with the help of Stuart Anstis and Olga Favreau, I was a vision scientist with material for a decade of papers. Thank you Richard, vision research is a fabulous, roller coaster ride of adventure. (PsycINFO Database Record (c) 2009 APA, all rights reserved)



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