Re: Color Perception: How does coffee affect color perception?
Re: Color Perception: How does coffee affect color perception?
- Subject: Re: Color Perception: How does coffee affect color perception?
- From: John Castronovo <email@hidden>
- Date: Sat, 27 Jul 2013 19:18:25 -0400
- Importance: Normal
Yes, the brain will adapt and do its best to give your vision a neutral
white balance, however you're still looking through a filter (or not) which
would have an impact on the relative brightness of different colors in the
scene. Looking through yellowed lenses, blues will be darker and there will
be less contrast within yellow objects. even though you may see a neutral
color balance where grays are correct. For example, remove your yellow
cataracts and you may notice the spots on aging skin more than you did
before.
Cheers,
John C.
-----Original Message-----
From: Daniel Westcott
Sent: Saturday, July 27, 2013 2:08 PM
To: email@hidden ; email@hidden
Subject: RE: Color Perception: How does coffee affect color perception?
I assumed most on this list were aware of such things. As we age or corneas
yellow. This naturally serves as a yellow filter and affects our ability to
see light of that wavelength. Our brains have an adjustment mechanism for
this and indeed for light anomalies in general and, so to speak, turns up
the gain on the filtered light to still give us white balance. .. these are
our knobs like what you would find on an old school analog drum scanner to
adjust for an unbalanced transparency. ..it's one of the most exciting parts
of color science to me. Writing this from my phone but I'll see about
writing more on this later.
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