[niketear]

This is incorrect.

Cone cells have fairly peaked frequency responses, and due to random projections caused by the cascading, this is sufficient to fully reconstruct the signal, i.e. the converse of the statement is true, you can retain 99.9% of the perceptual information using 3 sensors, all you need is to perceive in time and some randomness in the sensor placement.

[tgb]

They're not really that peaked, the M and L cones largely overlap, even, and are spread over at least a third of the entire visible spectrum. Pictures at: https://en.wikipedia.org/wiki/Cone_cell

[BurningFrog]

You can maybe retain 99.9% of the color information humans can perceive, but that is a very small part of what's in the visible spectrum signal.

Maybe this example will clarify: Our eyes can not tell the difference between monochromatic green light (540nm) and a mix of blue (470nm) and yellow (580nm) light.

[Natanael_L]

That only says something about the display to eyes end of things. If you record only a subset of the visible spectrum the image can end up wrong. You might actually not get any color at all in the worst case.

[vlehto]

I didn't quite understand. Are you refuting the eye-argument or the camera-argument?