抗图像合并的鲁棒性彩色图像水印算法

Color Image Watermarking Algorithm Robust to Image Uniting

摘要: 阐述了数字水印在彩色图像合并操作下的应用,考虑了JPEG2 0 0 0有损压缩的影响,提出了一种对JPEG2 0 0 0和JPEG有损压缩、图像剪切、合并操作具有强鲁棒的水印算法试验证明,该算法对彩色图像转换到灰度图像、对JPEG2 0 0 0高达1:5 0的压缩比、任意数量的图像合并、不超过5 0%的剪切以及噪声攻击具有较强的鲁棒性,提取的水印效果比较好.

Abstract: Taking into account lossy compression JPEG2000, a strongly robust watermark algorithm is proposed which can resist JPEG2000 and JPEG lossy compression as well as prevent image uniting and cutting. Test results show the algorithm is robust in the case of color image changed to gray image, JPEG2000 1∶50 lossy compression, arbitrary images uniting, image cutting less than 50% and additive noise attack. The extracting watermark can be identified better.