Yes, the strawberries look red ( a rather bluish-red). The very reason that picture has been so widely circulated is because people see red. Ditto for the black/blue/white/gold dress where people are convinced it is one or the other colour combination.
I think it is more because the background is so un-red more than an internal model of what colour strawberries should be.

DavidMcC wrote:

GrahamH wrote:Yes, the strawberries look red ( a rather bluish-red). The very reason that picture has been so widely circulated is because people see red. Ditto for the black/blue/white/gold dress where people are convinced it is one or the other colour combination.
I think it is more because the background is so in-red more than an internal model of what colour strawberries should be.

They still look grey-blue to me, I'm afraid, not in the least red.

So? perception varies. Don't assume you are representative or that everyone sees the same.

Just out of interest, how did you see the dress?

https://en.wikipedia.org/wiki/The_dress

Interestingly I originally saw it as clearly blue/black and now it looks white/gold

DavidMcC wrote:Graham, I don't assume that everyone''s colour vision is the same, that is why I mentioned colour vision defects, which do occur.
On the dress (which was shown a few years ago), I see it as black and blue. IIRC, one of the fashion mags that took a photo of this same dress evidently seriously over-exposed the photo, so that the blue looked white and the black looked gold. Lots of people then thought that their colour vision must be awry! The only thng that was awry was the exposure.

It's not 'defects'

Lots of people thought, as you evidently do, that their own experience must be correct and everyone else must be defective.

DavidMcC wrote:Graham, I don't assume that everyone''s colour vision is the same, that is why I mentioned colour vision defects, which do occur.
On the dress (which was shown a few years ago), I see it as black and blue. IIRC, one of the fashion mags that took a photo of this same dress evidently seriously over-exposed the photo, so that the blue looked white and the black looked gold. Lots of people then thought that their colour vision must be awry! The only thng that was awry was the exposure.

Spectacular way to miss the point David.
The point is not that " the blue looked white and the black looked gold" but that the colours were ambiguous and some people perceived it very clearly one way and others saw it the other way. The photo itself was not objectively either one nor the other. Many many people could not believe that anyone saw it the other way to the way they saw it.

DavidMcC wrote:synaesthesia
BTW, Met, have you considered the possibility that you have some form of synaesthesia? ideasthesia, perhaps?
PS, I'm taking the last line of your post above as just another (failed) wind-up attempt, because it is fairly obviously that normal colour vision does not involve seeing only what you expect, or want to see.

Don't misrepresent me. I have notI said that "normal colour vision does not involve seeing only what you expect, or want to see"?

DavidMcC wrote:OK, so you think it's normal to see the colours you expect to see, and not the actual colours. Wow! Does that mean that colours change for you, even without any external physical cause for it?

Stop it! I said nothing of the sort. Your previous post implies I it and it's wrong and now you post a suggestion that rejecting your false implication amounts to my agreeing with what you implied. I do not. An apology will be acceptable.

DavidMcC wrote:Apologies not coming just yet, until I've got more clarity over your apparent support for people claiming to see grey strawberries as red, while denying that they have any vision issues!

Since you seem to be unaware of what you have posted here's a reminder:

DavidMcC wrote:

GrahamH wrote:Yes, the strawberries look red ( a rather bluish-red). The very reason that picture has been so widely circulated is because people see red. Ditto for the black/blue/white/gold dress where people are convinced it is one or the other colour combination.
I think it is more because the background is so un-red more than an internal model of what colour strawberries should be.

They still look grey-blue to me, I'm afraid, not in the least red.

That's me saying I DON'T think expectation is the explanation.
You go on to accuse people of having defective vision while admitting that your own vision not like that of other people. Maybe your vision is 'defective'. Just because you can't see what others see doesn't make you right and them wrong. This is just something to do with how colour perception works. There's no point just rejecting it. It's a real and interesting phenomena.