Blind Print-Cam Data Hiding Exploiting Color Perception.

Augmented Reality is becoming a fundamental technique to provide an easy access to additional information directly from the surrounding environment. It is however crucial that the mean through which the information is accessed is as integrated in the environment as possible. To this end, several data hiding techniques have been devised in the years to encode information in images in an imperceptible way. However, these techniques are frequently strongly affected by printing and re-acquisition process. This work presents an application developing a data hiding technique robust to printing and camera acquisition (print-cam), thus allowing to recover inserted data (hundreds or thousands of information bits) from printed images in a robust way (e.g., for different size of printed cover image, in different illumination conditions, with various geometric distortions). Performance and robustness of the proposed solution are tested with respect to different metrics to prove the feasibility of the technique.