Posted: Aug 17, 2017 7:45 pm
by GrahamH
romansh wrote:
GrahamH wrote:7 B
When David could only see a bluey grey on the strawberries ... there were red, green and blue photons but no red pixels. The only photons that are emitted from a TFT monitor are red,green and blue ones*.

OK I am missing something here. Where are the red photons coming from on the red strawberries? I was under the impression only blue and green pixels used to make the picture?

GrahamH wrote:There is no such thing as a grey (or white) photon.

You honestly thought I did not know this?

What about black ones? ;)

Grey is a mix of R,G & B. I'm sure you know that. So blue-grey includes red photons. If there are lots more G & B photons than R from a pixel it isn't red.