Reversible Data Hiding Based on Motion-Vectors Ordering

Aiming at the problem that existing video data hiding algorithms affect visual quality, the reversible data hiding algorithm based on pixel value ordering is improved, and a reversible data hiding algorithm based on motion-vectors ordering is proposed. The algorithm divides the motion-vectors into nonoverlapping groups and arranges the motion-vectors of each group in ascending order, embeds secret data in the difference between the maximum (minimum) value and the second maximum (minimum) value. The proposed method provides a new idea for video reversible data hiding.