I am reading a lot of times that Luminosity is same as 'Brightness' in Photoshop..
But I also read that Luminosity is same as 0.3R + 0.59G + 0.11 Blue.
Maybe what I find this most confusing: Is a change in Luminosity effecting Saturation?
Can you span a colorspace with Luminosity and Hue alone?
At many sites theim y seem to replace the word 'Luminosity' for Brightness. And I think that is not correct.
Basically I am in the process of understanding the Luminosity blending.
I think it is 'normal blending' of all layers (regarding Hue) and keeps the luminosity of the top layer.
It would be very nice if I can choose my colors and see the Luminosity value as well (just for understanding). Some plugin maybe?
I think I need to do some experiments to get a feel for it. But I don't know how yet.
A lot of questions, but I find this all very confusing...(as I am reading different things).