Privacy image protection using fine-grained mosaic technique

Access control has been applied in multimedia database to preserve and protect the sensitive information. The past researches generate authorization rules to control the authorizations with fine-grained ability in social photos, meeting photos, promotional photos. However, it does not appropriate to use in some privacy scenarios (e.g., the increasing popularity of digital images being stored and managed by the service Google Street View). With low cost of maintenance, this paper integrates the data hiding technique into a fined-grained access control to mosaic the sensitive information as well as enable to recover the mosaic region if necessary. The experiments show the positive data to confirm the feasibility of the proposed scheme.