<![CDATA[Latest posts for the thread "Colours make my brain hurt."]]> http://www.dakkadakka.com/dakkaforum/posts/list/54.page JForum - http://www.jforum.net Colours make my brain hurt.
Now, I know that's red, and you know that it's red. But there's one thing we don't usually consider.
How do we know we're seeing the same colour?
Since it's pretty hard to actually describe a colour, we can't really say what it is we're seeing, so whilst we just accept something'sas normal (I.E this text is blue), how do we know what blue actually is? For all we know, my green could be your purple and your purple could be my green.

/Discuss
]]> http://www.dakkadakka.com/dakkaforum/posts/preList/318487/1952391.page http://www.dakkadakka.com/dakkaforum/posts/preList/318487/1952391.page GMT Colours make my brain hurt. http://www.dakkadakka.com/dakkaforum/posts/preList/318487/1952412.page http://www.dakkadakka.com/dakkaforum/posts/preList/318487/1952412.page GMT Colours make my brain hurt.
As for your purple being my red...maybe. Kinda weird, actually.]]> http://www.dakkadakka.com/dakkaforum/posts/preList/318487/1952418.page http://www.dakkadakka.com/dakkaforum/posts/preList/318487/1952418.page GMT Colours make my brain hurt. http://www.dakkadakka.com/dakkaforum/posts/preList/318487/1952432.page http://www.dakkadakka.com/dakkaforum/posts/preList/318487/1952432.page GMT Colours make my brain hurt.
Maybe the color I see as blue, someone else sees as what I would call red. But we both call it blue. Neither of us would know the difference, because we both would have been calling it blue our whole life, and to each of us, it is "blue."


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Of course, there is the the whole thing with how light and wavelengths of different colors, which would be consistent, so if "color switching" as I'll call it exists, it would have to do with how the brains of different individuals interpret the wavelengths.]]> http://www.dakkadakka.com/dakkaforum/posts/preList/318487/1952455.page http://www.dakkadakka.com/dakkaforum/posts/preList/318487/1952455.page GMT Colours make my brain hurt.
The only way to tell a colour on computer is by the RGB values.

]]> http://www.dakkadakka.com/dakkaforum/posts/preList/318487/1952769.page http://www.dakkadakka.com/dakkaforum/posts/preList/318487/1952769.page GMT Re:Colours make my brain hurt. http://www.dakkadakka.com/dakkaforum/posts/preList/318487/1952849.page http://www.dakkadakka.com/dakkaforum/posts/preList/318487/1952849.page GMT Re:Colours make my brain hurt.
warpcrafter wrote:I don't know about computer monitors, but paint, at least high-end artist paint uses specific chemicals and substances for pigment, so it's the chemical makeup of that stuff that determines the color. And people generally agree on what color these paints are, so I think that there is no debate.



It's not about the chemical makeup of the pigment. It's more about how our brains interpret the colors. People could all agree on the name of the color, and the wavelengths, and the pigments, and still be seeing different colors. If you and I both don't have a color vision defect like color blindness, but what we both call "blue," and what I see as blue looks to me like what you would call red, and what you see as red looks like what I would call blue, we would never know the difference because everything we've ever seen that we both call "blue," and both agree is blue, is actually perceived as a different color in our brains.]]> http://www.dakkadakka.com/dakkaforum/posts/preList/318487/1952907.page http://www.dakkadakka.com/dakkaforum/posts/preList/318487/1952907.page GMT Re:Colours make my brain hurt. http://www.dakkadakka.com/dakkaforum/posts/preList/318487/1952914.page http://www.dakkadakka.com/dakkaforum/posts/preList/318487/1952914.page GMT Re:Colours make my brain hurt.
warpcrafter wrote:I don't know about computer monitors, but paint, at least high-end artist paint uses specific chemicals and substances for pigment, so it's the chemical makeup of that stuff that determines the color. And people generally agree on what color these paints are, so I think that there is no debate.


People agree because the whole topic has been extensively researched using science so that standards can be developed.

The colour of paint can be measured using a spectrophotometer, to ensure regularity to the formula. And so on.

There are still differences between batches of the same colour, so when you go to buy the paint to paint your dining, they advise you to buy the tins all from the same batch.

When you show a colour on a computer monitor you have the following variables:

1. The "colour" (it's RGB value)
2. The compression algorithm.
3. The monitor's settings for gamma and so on.
4. The other colours displayed on the rest of the monitor. If a monitor is showing a lot of white, a colour will look darker.
5. The light in the room the monitor is set up in. This will vary by intensity and colour temperature.
6. The viewer's eye.

Almost no-one outside high-end graphics, photo and TV studios bothers to control for any of this, so colours we see on the Internet are rather variable.

]]> http://www.dakkadakka.com/dakkaforum/posts/preList/318487/1952971.page http://www.dakkadakka.com/dakkaforum/posts/preList/318487/1952971.page GMT Re:Colours make my brain hurt.
Kilkrazy wrote:
When you show a colour on a computer monitor you have the following variables:

1. The "colour" (it's RGB value)
2. The compression algorithm.
3. The monitor's settings for gamma and so on.
4. The other colours displayed on the rest of the monitor. If a monitor is showing a lot of white, a colour will look darker.
5. The light in the room the monitor is set up in. This will vary by intensity and colour temperature.
6. The viewer's eye.

Almost no-one outside high-end graphics, photo and TV studios bothers to control for any of this, so colours we see on the Internet are rather variable.





Oh. I got it now. You're talking about the "Red" picture in this thread, and you're absolutely right about that. I'm talking about something different though.]]> http://www.dakkadakka.com/dakkaforum/posts/preList/318487/1953077.page http://www.dakkadakka.com/dakkaforum/posts/preList/318487/1953077.page GMT