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> For example, the Physical reality is the different frequencies of light. The Biological reality is that different types of cells on our retina respond with di
by fortran77 8mo ago
> For example, the Physical reality is the different frequencies of light. The Biological reality is that different types of cells on our retina respond with differing intensity to each of those frequencies.
Because this isn't true. And there are multiple ways with completely different combinations of intesities of light at different frequencies to have a color that most people will see as the same color. This is because the color receptors of our eye overlap.
- srean 8mo ago> And there are multiple ways with completely different combinations of intesities of light at different frequencies to have a color that most people will see as the same color. This is because the color receptors of our eye overlap. Of course, if you read back you will notice I am quite aware that the mapping is not a one to one bijection. Hence the need to solve the inverse problem. One can maintains the inverse image (a set), or maintain a distribution over that, or certain statistics of that distribution. I have a link in my post about what inverse problems are.
- fortran77 8mo agoWe see different colors not because our eyes can tell what frequency a particular spectral color is, but because we have three types of color receptors, each of which is excitied by different broad ranges of overlapping frequencies.
- srean 8mo agoEither my English is very bad or your comprehension is. My understanding is no different from what you say in this comment.