Image scan in detail
Not every hunt needs QR codes. An image scan lets any distinctive picture act as the trigger: a mural, a printed card, a logo on a banner. The participant points the app's camera at it, the app recognises it and responds with a clue, points or a reveal. This lets organisers hide checkpoints in plain sight, brand them naturally and avoid the visual clutter of QR squares on a heritage venue. It is closely related to the AR marker, which adds an augmented-reality overlay. Design details include choosing images with enough distinct detail, preparing the recognition set in advance and testing under real lighting. Image recognition can fail on glare or low light, so provide a fallback such as a host with a manual code. Sociana lists image-scan cards among its games and hunt modules, and they combine well with memory games and scavenger hunts at offsites. Track completion per checkpoint to find the weak spots.
How Sociana uses it
Image-scan cards are configured in the games and hunt modules with a recognition set, a response and points. Completion is visible per checkpoint.
Example
A cultural offsite hid image-scan checkpoints inside a themed programme.