提出一种基于奇异值分解(SVD)和可逆信息隐藏的近无损鲁棒水印方法。首先将图像分块,然后进行SVD分解,并将水印嵌入到其进去奇异值的U分量中,最后将可恢复载体图像的信息经可逆信息隐藏方法嵌入到水印图像中,在提取水印和恢复载体图像过程中都不需要原载体图像。实验证明,该算法不仅能使原载体图像近无损恢复,而且能有效地抵抗JPEG压缩、噪声干扰、低通滤波,剪切和旋转等典型的攻击,具有较强的鲁棒性。
A new near-lossless robust digital watermarking scheme based on singular value decomposition(SVD)and reversible data hiding is proposed.The host image is firstly partitioned into non-overlapping blocks,and the watermark is embedded in the U component after the SVD transformation is performed on the blocks.Secondly,the information of the recoverable cover images is hiding in the watermarked image by reversible information hiding method.In the process of watermark extraction and image recovery,the cover image...