METHODS FOR HIDING IN-BAND DIGITAL DATA IN IMAGES AND VIDEO

Frames of video and image data are processed to convey plural bits of hidden auxiliary data. The auxiliary data can be used for identification purposes, for device control (disabling video recording and the like), etc. The claimed arrangement uses a data embedding technique wherein the value of single pixels of the video or image data are influenced by the values of several of the bits of auxiliary data. A great variety of other techniques and applications are also detailed.