Word Lens App is Like a Magical Visual Babel Fish

[joebob2000]

The image you look at with Word Lens IS faked... You really should check out the video to see how this works. The program tries to, in REALTIME, scrape off the english text (or whatever is on the sign), leave the background color behind, and plant in the translated text instead. The screenshots show slightly different POV from frame to frame because, duh, the phone wasn't ever showing both languages at the exact same moment and wasn't being held perfectly still. If the POV were 100% identical, you would actually have more cause for concern.

The sausage and lemonade sign does look weird though, the keystone effect detection/matching obviously is imperfect.