Robustness of Structure-Based Watermark by Using Balanced Incomplete Block Designs

Robustness is one essential requirement for watermarking systems. In order to improve robustness of watermarking systems, the purpose of this work is to design a new kind of watermarks based on balanced incomplete block designs (BIBD). The corresponding recognition rules for the proposed watermark are designed based on the structure information contained in the BIBD-based watermark. Experimental results show that both the true positive and the false negative rates of the proposed watermark are better than those of the random pattern under Gaussian noise.