Is picking up fixed pixel rgb values from a camera pic using arduino/uC possible?
You could use a microcontroller and this camera ( https://www.sparkfun.com/products/8667 ) to do what you want. You would have the microcontroller send some configuration and then the "take picture" command to the camera, then read the pixel data from the parallel data outputs. Most uCs don't have enough memory to store a whole photo, so you'd have to handle the pixels you want as they come in and discard the rest.