If every wavelength can be abstracted as a metamer of some 3-dim value, then this means that that "out of gamut" should never be a problem as well as the RGB lights are precise enough. When would negative values be needed on lights, except for problems with precision?
srikartalluri
This concept is super interesting as we can see the real world applications of this in color printing. We know that most normal printers usually take in 3 different colors of ink in addition to black ink. The combination of magenta, cyan, yellow, and black allow our human eyes to perceive the full range of color without actually making for example, the color purple.
dhruvchowdhary
@aidangarde Even though we can use three colors to match any color we see, some colors can't be shown on screens because screens have a limited range of colors. Negative values in this context are just a math trick to describe these hard-to-show colors, not something we do with actual lights.
GH-JamesD
I guess in principle this is very similar to mapping any high dimensional space onto a low dimensional one. Interesting to see how concepts like this that come up so often in computer science and engineering are ultimately behind the very biological way that we see color!
If every wavelength can be abstracted as a metamer of some 3-dim value, then this means that that "out of gamut" should never be a problem as well as the RGB lights are precise enough. When would negative values be needed on lights, except for problems with precision?
This concept is super interesting as we can see the real world applications of this in color printing. We know that most normal printers usually take in 3 different colors of ink in addition to black ink. The combination of magenta, cyan, yellow, and black allow our human eyes to perceive the full range of color without actually making for example, the color purple.
@aidangarde Even though we can use three colors to match any color we see, some colors can't be shown on screens because screens have a limited range of colors. Negative values in this context are just a math trick to describe these hard-to-show colors, not something we do with actual lights.
I guess in principle this is very similar to mapping any high dimensional space onto a low dimensional one. Interesting to see how concepts like this that come up so often in computer science and engineering are ultimately behind the very biological way that we see color!