Quite difficult (but very cool). The way that the brightness (if that's the right term) varies between frames made it hard for me to distinguish between moveme

Quite difficult (but very cool). The way that the brightness (if that's the right term) varies between frames made it hard for me to distinguish between movement and adjacent objects appearing and disappearing. I wonder if there would be a way to normalize the brightness based on the brightest of the frames (i.e. the frame with the most objects visible) to make it easier to detect actual movement as opposed to what looks like movement due to stop-motion-like hiding and revealing of adjacent objects.