For the record, the guy actually invented this with the intent of it being used to crack down on human trafficking. Traffickers often cover their victims in heavy/unusual makeup before posting pics of them online, to make them harder to detect using normal software.
This was George. He was a 9 year old Jack Russell who lived in the small town of Manaia, New Zealand. On April 29, 2007 he jumped into a losing fight with two Pit Bulls to protect two young children. According to witnesses he fought as hard as he could, but he never stood a chance and was severely mauled as the children were pulled to safety. George died from his wounds that afternoon at the vet.