There's a grain of truth to that. Everything you see is filtered by the limitations of your eyes and the post-processing applied by your brain which you can't turn off. That's why you don't see the blind spot on your retinas where your optic nerve joins your eyeball, for instance.

You can argue what objective reality is from within the limitations of human observation in the philosophy department, which is down the hall and to your left. That's not what we're talking about, here.

From a computer science standpoint you can absolutely mathematically prove the amount of data that is captured in an image and, like I said, no matter how hard you try you cannot add any more data to it that can be actually guaranteed or proven to reflect reality by blowing it up, interpolating it, or attempting to fill in patterns you (or your computer) think are there. That's because you cannot prove, no matter how the question or its alleged solution are rephrased, that any details your algorithm adds are actually there in the real world except by taking a higher resolution/closer/better/wider spectrum image of the subject in question to compare. And at that point it's rendered moot anyway, because you just took a higher res/closer/better/wider/etc. picture that contains the required detail, and the original (and its interpolation) are unnecessary.

Entropy and information theory is very real, it's embedded in quantum physics