Im addition to lighting, photographic details are also affected by the size of the aperture, exposure and sensor size. The no one thing that's variable at runti

Im addition to lighting, photographic details are also affected by the size of the aperture, exposure and sensor size. The no one thing that's variable at runtime is exposure. Auto-exposure can trivially solve for this when you optimize the image for the target subject. If you care for facial recognition, then a washed-out (or dim) background won't matter. Adjusting exposure is not rocket science.