Information Hiding on Digital Signage by using Color-Difference Modulation

Abstract

This paper describes a display technique which enables us to invisibly attach signal of information to a displayed image on a flat panel display (FPD) by using color-difference modulation and to extract the signal of information from the displayed image captured with a video camera. Two experiments were carried out in this study. First, we assessed invisibility of the attached signal of information to the displayed image for the human eye. Then, we examined readability of the attached signal of that for video camera.