Photo on turn on. Says "1.5".

[AC Question]

This has happened twice (weeks apart). I take my phone out of my pocket (I can't remember if I hit the on button or not) and it shows a photo of where it is pointing with the label "1.5" on the screen. I definatley didn't take a photo and even if I did it doesn't come up with 1.5 normally. What is happening?

 

[Quport99]

Could you please provide me with phone model or screenshots? That info would be helpful, thanks.