Actually that's not how rods and cones work. In daylight or bright indoor light settings, the rods deactivate. That is, they generate no signal. Not to mention

Actually that's not how rods and cones work. In daylight or bright indoor light settings, the rods deactivate. That is, they generate no signal. Not to mention you've got the relationship backwards- there's far more cones than rods per unit area. This is why you can see with much higher detail in daylight settings, but in low light settings you see in very low resolution in black and white (with a blue tone since the rods are mostly only sensitive to blue/green light) These are important facts for deciding, for instance, that alarm clocks, and shipboard navigation dashes should use only red light- since red light doesn't kill the sensitivity of your rods. It doesn't deactivate your night vision. That's not to say you're not partly right, it's just the color/luminance processing doesn't happen in the retina. It happens in the visual cortex, or possibly with some help from processing that happens in or near the optic nerve.