We should repeat now that we are talking about visual perception and not how we measure color, because we are absolutely unable to. In our everyday color perception the cognitive processes are extremely important. We can quantify simultaneous contrast only through comparison Our eyes gather data and send the information to the brain where they are interpreted, and manipulated with a purpose that is driven and refined by our species evolution. When we study the visual system, we do not learn just about the eyes, but a complex combination of eyes and brain (and even this is blatantly oversimplify). Professor Shaun Collin, from UQ’s School of Biomedical Sciences So it was a major surprise for us that we have found what appears to be a clear progression from a simple eye to a complex eye, which occurred over a relatively short period (30 million years) in evolutionary history. Challanges in learning about visual perceptionĬharles Darwin wasn’t able to reconcile the evolution of the eye given its complexities and diversity of eye designs. I will write about all of these as well at a later time. Simultaneous contrast is interesting and it is useful as well. I researched many visual perception phenomena (crispening, spreading, Bezold-Brücke, Abney, Helmholtz–Kohlrausch, color constance, Hunt, Stevens, Helson-Judd, Bartleson-Breneman and others), and even if all of them are interesting on paper, just few are actually usable in color correction. I’m using “probably”, because in these years I saw users often unable to contain the enthusiasm, with the risk of overdoing what should be a subtle interpretation. But the visual system, and the visual perception, should probably be learned first. Some theories, like the zonal system, are interesting, from an historic point of view as well.
Some topics sure are necessary, for example what is the best approach for a successful backup for a photographer.
For the luckiest, we could say practical as well. Learning color correction, I will never stop saying this, should be a practical experience. Should a colorist even learn about the visual system? This relativism can, often, be used to improve our images in photographic post-production.This behaviour, though, introduce a relativism in our color perception.For survival it is much more important to distinguish (or separate) a lion in the middle of savannah, than it is to be able to appreciate two identical yellows.
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