Lecture 20: Introduction to Color Science (Cont) (11)
Caozongkai
In the graph it shows that there are more red cone cells than the green and the blue one. Does that means human eyes are most sensitive to red light and less sensitive to blue light?
andrewdcampbell
I'm curious as to how this relates to color filter arrays (CFAs). Specifically, the Bayer filter is the most commonly used CFA and has a filter pattern of 50% green, 25% red and 25% blue. I've always heard the decision to use twice as much green is to mimic the physiology of the human eye. However, this image suggests that red cone cells are the most numerous - so what is going on?
jessicajyeh
If you look at slide 30 on the Lecture 19 slides, it shows a distribution of cone cells for 12 different people. They vary a lot in amount of red/green, but interestingly enough they all have normal color vision!
jessicajyeh
Also note that these are not really rgb or how we perceive rgb, they correspond to short, medium, and long cone cells
In the graph it shows that there are more red cone cells than the green and the blue one. Does that means human eyes are most sensitive to red light and less sensitive to blue light?
I'm curious as to how this relates to color filter arrays (CFAs). Specifically, the Bayer filter is the most commonly used CFA and has a filter pattern of 50% green, 25% red and 25% blue. I've always heard the decision to use twice as much green is to mimic the physiology of the human eye. However, this image suggests that red cone cells are the most numerous - so what is going on?
If you look at slide 30 on the Lecture 19 slides, it shows a distribution of cone cells for 12 different people. They vary a lot in amount of red/green, but interestingly enough they all have normal color vision!
Also note that these are not really rgb or how we perceive rgb, they correspond to short, medium, and long cone cells