Image Watermarking Capacity and Reliability Research

For the analysis of how much information can be hidden in digital image, a content adaptive watermarking algorithm is presented and watermarking capacity is discussed in this scenario. The relation between watermarking capacity and detection bit error rate is also derived. Reseatch result shows that watermark detection error is mainly influenced by the watermark mean energy and watermarking capacity. The detection error rises with the increase of watermarking capacity.