Open Viewing of Hopper's "Early Sunday Morning"

I'm kind of startled when I look at Hopper's "Early Sunday Morning". For some reason the top half of his painting, part dealing with the windows above the barbershop, looks strikingly more photorealistic to me than the bottom half. As my browser loads I only get most of the top half of the painting on my screen and if I squint a little bit it looks like and old photograph. But when I scroll down I begin to actually see Hopper's brushstrokes and realize that this was actually made by a person's hands, not a person using his hands to operate a camera. I feel that maybe this odd dichotomy may be artificially induced by the fact that this painting has been somehow captured, probably with a camera, and then copied digitally to a computer and transfered and recreated on my screen. But as we discussed in my recording technology class there is no way to fully capture something analogue because it is continous. When you quantize something by taking a picture and putting it online you, or the computer more accurately, has to make decisions about what combination of red, green, blue to use to make that specific color which can never be prefectly replicated and thus information is, in a sense, "lost". I mean when I go to display settings on my laptop I can't choose a "real life" setting, I can only choose up "Millions" of colors. But life and painting do not exist in just millions of colors.
So to come full circle, I feel that we already have unfelt biases inserted to our viewings when we do not view art, or at least paintings, in its original medium. It may not be a huge effect, as our technology has significantly improved, but we as long as we are quantizing we are limiting.