4 ms·

I’m wondering how much of the visible color space is represented here. 100%? 80% 50%?

by hk__2 13y ago

ars 13y ago
35.9% - look up sRGB for more info. (!00% of what a monitor can do, but 35.9% of what the human eye can see - especially greens are lacking.) Have a look: http://www.skytopia.com/project/illusion/2illusion.html http://www.skytopia.com/project/illusion/2illusion.html
- BrandonY 13y ago
  I remember being in a computer vision class some years ago where the professor was explaining to us how RGB fails to capture a wide range of colors. I was annoyed that his presentation didn't show any examples of these other colors, and then I realized how I was an idiot.
  - bcoates 13y ago
    If your school had invested in compatible projectors, he could have just installed the plugin: http://www.negativland.com/archives/015squant/plugin.html http://www.negativland.com/archives/015squant/plugin.html
  - vacri 13y ago
    A professor can provide materials beyond that displayable on a computer screen.
- foolrush 13y ago
  Almost on. Given that the RGB image is likely not tagged with colorspace information, the colors represented are a direct byproduct of the primaries of whatever display you view them on. That is, if your display happened to have the original CIE RGB color primaries, the 3D volume of colors would cover a greater volume. Of course, this too ignores the "stepping" between colors (bit depth) and also ignores the wider luminance gamut that a standard observer is capable of seeing. So the slightly more accurate answer to the original question is "Depends on what the primaries are of your display. Typically this is roughly sRGB, but if you are on a wide gamut display or projector, it will be larger."
JosephRedfern 13y ago
I'd guess closer to zero... as I understand it, the visible light spectrum is continuous rather than discrete. https://en.wikipedia.org/wiki/Continuous_spectrum https://en.wikipedia.org/wiki/Continuous_spectrum
- twoodfin 13y ago
  There's a limit to the ability of the human eye to distinguish similar colors. That limit means that each "point" color in the image can be considered to span some range of the visible spectrum.
  - JosephRedfern 13y ago
    Very true - but I suppose that'd be answering a different question! What if you were writing software for a tetrachromatic organism?

I’m wondering how much of the visible color space is represented here. 100%? 80% 50%?

by hk__2 13y ago

I’m wondering how much of the visible color space is represented here. 100%? 80% 50%?

ars 13y ago

35.9% - look up sRGB for more info. (!00% of what a monitor can do, but 35.9% of what the human eye can see - especially greens are lacking.) Have a look: http://www.skytopia.com/project/illusion/2illusion.html http://www.skytopia.com/project/illusion/2illusion.html

BrandonY 13y ago
I remember being in a computer vision class some years ago where the professor was explaining to us how RGB fails to capture a wide range of colors. I was annoyed that his presentation didn't show any examples of these other colors, and then I realized how I was an idiot.
- bcoates 13y ago
  If your school had invested in compatible projectors, he could have just installed the plugin: http://www.negativland.com/archives/015squant/plugin.html http://www.negativland.com/archives/015squant/plugin.html
- vacri 13y ago
  A professor can provide materials beyond that displayable on a computer screen.
foolrush 13y ago
Almost on. Given that the RGB image is likely not tagged with colorspace information, the colors represented are a direct byproduct of the primaries of whatever display you view them on. That is, if your display happened to have the original CIE RGB color primaries, the 3D volume of colors would cover a greater volume. Of course, this too ignores the "stepping" between colors (bit depth) and also ignores the wider luminance gamut that a standard observer is capable of seeing. So the slightly more accurate answer to the original question is "Depends on what the primaries are of your display. Typically this is roughly sRGB, but if you are on a wide gamut display or projector, it will be larger."

JosephRedfern 13y ago

I'd guess closer to zero... as I understand it, the visible light spectrum is continuous rather than discrete. https://en.wikipedia.org/wiki/Continuous_spectrum https://en.wikipedia.org/wiki/Continuous_spectrum

twoodfin 13y ago
There's a limit to the ability of the human eye to distinguish similar colors. That limit means that each "point" color in the image can be considered to span some range of the visible spectrum.
- JosephRedfern 13y ago
  Very true - but I suppose that'd be answering a different question! What if you were writing software for a tetrachromatic organism?