If I said you need to convert each 8:8:8 colour into 3:3:2, would you have any idea what I was talking about?
In other words, how much of the basics do you already know?
I`m recently programing in c++, i`m relatively new. If you are trying to explain me the RGB, don`t boder.
What i`m trying to do is changing a 32bits captur to a 8 bits capture, thats all, you don`t have to be so agresive to me.