In cases where it's unlikely that anything in the photo should be gray, your best bet is to color correct the highlights and shadows and leave the midtones alone. If there is an area that's supposed to be neutral gray, though, this technique will find it.
An average person spends 14-15 years of their life on the toilet.  (true)   another interesting fact - an average person spends 3 days of their  life sitting at a red liâ¦ght.
Another study, conducted by Flurry, shows U.S. consumers actually spend over 5 hours a day on mobile devices! About 86% of that time was taken up by smartphones, meaning we spend about 4 hours, 15 minutes on our mobile phones every day.