Am 01.12.2010 02:32, schrieb Stephen Klebs:
>>
>> No, it's your eye playing tricks on you.
>>
>> Our eyes are highly calibratible optical measurement tools - they work
>> as well at a brightness of 10% as at 1,000% (and then some), and get
>> object colors right regardless of lighting conditions.
>
> This is not correct. You only understand the physics of the optical system, but
> not the physiology nor the psychology. This is not how we see. You are talking
> as if you could see yourself seeing and you can not. What you are seeing is a
> model of how you think things appear. This is a very subtle and complex mystery.

I'm well aware that I'm simplifying here, but I'm not holding a lecture 
in physiology nor psychology here - I'm merely making a point that 
visual perception of brightness does not match physical brightness when 
it comes to gradients.

I didn't know you had background knowledge in those areas; it really 
didn't show in your approach to the gradients issue.

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