First let me state I believe in ghosts. Having stuff thrown at you by one is a real eye opener, and the same spook tried to beat down the bathroom door once, to the point where pictures fell off the wall. Having said that, I’m very suspicious when anyone else claims to have seen one, particularly when they claim to have a photo. Half of the images are either double exposures or just vaguely humanoid looking shadows. Most of the rest are fakes.
This one is a still of a CCTV, from Hampton Court Palace. This I think was a publicity stunt to get in the tourists. The CCTV footage looks very professionally done.
This one was taken on a mobile phone, so it rules out a double exposure. I’m putting this one into the ‘possibly real’ category, unlike most of them. It could have been done on a computer.
This picture was taken inside the infamous ‘Amityville’ house. Bullshit horror story aside, this was the scene of a massacre that wiped out six people. This image was discovered sometime after it was taken (years). A professional photographer set his camera up to shoot infrared all through the night. This sole image was the only one from rolls of film, and was discovered when putting the book together for publication (I saw the interview with the photographer years ago). It has a good resemblance to the youngest Defeo boy, who died aged nine.
I think this is the most likely to be real. Still, most ghost photos are BS.