Secrete Data Hiding In H.264/AVC Compressed Video Bitstreams For Privacy Info Protection.

Abstract

The project presents that encryption of compressed video bit streams and hiding privacy
information to protect videos during transmission or cloud storage. Digital video sometimes needs to be stored and
processed in an encrypted format to maintain security and privacy. Data hiding approach is necessary to perform in
these encrypted videos for the purpose of content notation and tampering detection. In this way, data hiding in
encrypted domain without decryption preserves the confidentiality of the content. In additions, it is more proficient
without unscrambling taken after by information covering up and re-encryption. Here, information stowing away
specifically in the encoded adaptation of H.264/AVC video stream is drawn nearer, which incorporates the
accompanying three sections, i.e., H.264/AVC video encryption, information implanting, and information extraction.
By examining the property of H.264/AVC codec, the code expressions of intra forecast modes, the code expressions of
movement vector contrasts, and the code expressions of lingering coefficients are scrambled with stream figures. At
that point, an information hider may install extra information in the encoded space by utilizing bits substitution
system, without knowing the first video content. Mayhem crypto framework is utilized here to scramble/unscramble
mystery content information before/after information installing/extraction. So as to adjust to various application
situations, information extraction should be possible either in the scrambled space or in the unscrambled area. The
venture recreated comes about demonstrates that utilized techniques gives better execution as far as calculation
productivity ,high information security and video quality after decoding. The parameters, for example, Mean square
blunder, PSNR, relationship are assessed to quantify its proficiency