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Interesting Video about Colour Perception

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Atom Ant View Drop Down
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Post Options Post Options   Quote Atom Ant Quote  Post ReplyReply Direct Link To This Post Topic: Interesting Video about Colour Perception
    Posted: 08 June 2018 at 04:20
Interesting way to spend 6 minutes
https://youtu.be/gMqZR3pqMjg
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Photosopher View Drop Down
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Post Options Post Options   Quote Photosopher Quote  Post ReplyReply Direct Link To This Post Posted: 08 June 2018 at 05:47
Lovely. Thanks for sharing.
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clk230 View Drop Down
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Post Options Post Options   Quote clk230 Quote  Post ReplyReply Direct Link To This Post Posted: 08 June 2018 at 06:43
+1, very interesting thanks Tony.
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addy landzaat View Drop Down
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Post Options Post Options   Quote addy landzaat Quote  Post ReplyReply Direct Link To This Post Posted: 08 June 2018 at 08:50
If you liked this one, you might also like his Vox video about the difficulties photography/imaging had (and sometimes has) in representing darker skin tones.
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clk230 View Drop Down
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Post Options Post Options   Quote clk230 Quote  Post ReplyReply Direct Link To This Post Posted: 08 June 2018 at 09:51
Originally posted by addy landzaat addy landzaat wrote:

If you liked this one, you might also like his Vox video about the difficulties photography/imaging had (and sometimes has) in representing darker skin tones.
Very interesting too.
C & C always welcome
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Post Options Post Options   Quote waldo_posth Quote  Post ReplyReply Direct Link To This Post Posted: 08 June 2018 at 09:52
That's a really interesting clip! Thanks for sharing it, Tony!

There is probably more to the combination of black, white and red than the video can say. The Nazi flag (black swastika on white ground, framed by red) comes immediately to my mind. BTW: My favorite flag is the Brazilian one: green, yellow and blue.
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Miranda F View Drop Down
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Post Options Post Options   Quote Miranda F Quote  Post ReplyReply Direct Link To This Post Posted: 08 June 2018 at 11:17
Yes, one of the most interesting short lectures on colour preception I've seen.

Another issue is how we perceive coloured objects to be the same colour in sunset as as midday shade, even though the light reahcing our eyes form them is compeltely different! I haven't seen a video of that, though.
Miranda F & Sensorex, Sony A58, Nex-6, Dynax 4, 5, 60, 500si/600si/700si/800si, various Sony & Minolta lenses, several Tamrons, lots of MF primes and *far* too many old film cameras . . .
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Atom Ant View Drop Down
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Post Options Post Options   Quote Atom Ant Quote  Post ReplyReply Direct Link To This Post Posted: 08 June 2018 at 12:07
Originally posted by waldo_posth waldo_posth wrote:

BTW: My favorite flag is the Brazilian one: green, yellow and blue.

I have to lean towards the somewhat eccentric Nepalese flag. Are there any Danes here who can comment on Nepal's being the only flag that's not a rectangle?

Originally posted by Miranda F Miranda F wrote:

Another issue is how we perceive coloured objects to be the same colour in sunset as as midday shade, even though the light reahcing our eyes form them is compeltely different! I haven't seen a video of that, though.


Try looking for "colo(u)r constancy".
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Post Options Post Options   Quote Hezu Quote  Post ReplyReply Direct Link To This Post Posted: 10 June 2018 at 19:26
Originally posted by Atom Ant Atom Ant wrote:

I have to lean towards the somewhat eccentric Nepalese flag. Are there any Danes here who can comment on Nepal's being the only flag that's not a rectangle?
Why you would need a Dane to confirm that? For example, Wikipedia article on Nepalese Flag states that it is the world's only non-quadrilateral national flag.
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Post Options Post Options   Quote Atom Ant Quote  Post ReplyReply Direct Link To This Post Posted: 11 June 2018 at 06:02
Originally posted by Hezu Hezu wrote:

Originally posted by Atom Ant Atom Ant wrote:

Are there any Danes here who can comment on Nepal's being the only flag that's not a rectangle?
Why you would need a Dane to confirm that? For example, Wikipedia article on Nepalese Flag states that it is the world's only non-quadrilateral national flag.

I recalled seeing "swallow tail" flags in Denmark. After some Googling I can confirm my recollection. Apparently it's the state flag rather than the civil flag but I would think that it qualifies. It's clearly not a quadrilateral & I assume it qualifies as a flag. (Though perhaps there is complexity here of which I'm unaware...)

Edited by Atom Ant - 11 June 2018 at 06:55
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Post Options Post Options   Quote Hezu Quote  Post ReplyReply Direct Link To This Post Posted: 11 June 2018 at 13:14
Originally posted by Atom Ant Atom Ant wrote:

Originally posted by Hezu Hezu wrote:

Originally posted by Atom Ant Atom Ant wrote:

Are there any Danes here who can comment on Nepal's being the only flag that's not a rectangle?
Why you would need a Dane to confirm that? For example, Wikipedia article on Nepalese Flag states that it is the world's only non-quadrilateral national flag.

I recalled seeing "swallow tail" flags in Denmark. After some Googling I can confirm my recollection. Apparently it's the state flag rather than the civil flag but I would think that it qualifies. It's clearly not a quadrilateral & I assume it qualifies as a flag. (Though perhaps there is complexity here of which I'm unaware...)
Ok, yes, there are these swallowtail flags and sure those are official national flags, but I think in most cases these versions are usually restricted to specific uses and at least other countries than Nepal do still have the quadrilateral versions of their flags.
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