There is a massive amount of pre-processing already done in the retina itself and in the LGN:

https://en.wikipedia.org/wiki/Lateral_geniculate_nucleus

So the brain does not necessarily receive 'raw' images to process to begin with, there is already a lot of high level data extracted at that point such as optical flow to detect moving objects.

And the occipital is developed around extraordinary levels of image separation, broken down into tiny areas of the input, scattered and woven for details of motion, gradient, contrast, etc.

Interesting. So similar to the vision encoder + projector in VLMs?