A H.264/AVC Digital Watermarking Algorithm Based on Prediction-Residual Energy Priority

As to H.264/AVC watermarking technique, it is a key issue to select some proper image blocks for watermark embedding, that can reduce the increase of watermarked-stream bitrate, strengthen the robustness of watermark and improve the quality of the watermarked video. A new H.264/AVC watermarking algorithm based on the sort of prediction-residual energy is proposed in this paper. Through comprehensively predicting the prediction-residual energy of all image blocks, The selecting priority of each image block for watermarking embedding is set according to the prediction-residual energy, the larger the value, the higher the selecting priority. The experiment results show the good performance on bitrate, transparency and robustness.