关键词: 图像水印, 直方图平移, 可逆水印, 性能估计, 信息隐藏

Abstract: Multi-layer embedding for histogram shifting based reversible watermarking leads to high capacity. However, due to the high complexity of the time-consuming multi-layer embedding, the assessment whether the given secret data can be embedded into the host image and the stego-image quality could meet the requirement, was generally not obtained in advance. This paper presented a fast performance estimation scheme based only on the histogram information. The experimental results show that the proposed scheme is fast and accurate, and provides a basis for application of multi-layer reversible watermarking.

Key words: image watermarking, histogram shifting, reversible watermarking, performance estimation, data hiding