that's the fallacy here. Unless it fluoresces, the only think the green surface can to is change the amount of red light reflected, it can't convert red light to green. When a surface reflects a different "color" than illuminated with, it's because the impinging color is not pure, but rather a mixture of wavelengths, and the surface reflects them in different fractions, changing the mixture, and hence the perception of color. If an optic sensor is truly insensitive to red, then it cannot help differentiate a green surface (or anything else) when illuminated purely by red light.
The comments by others about post-processing and perception seem on to me, but I'm the physics type, not the neurobiology type. |
