基于Amold加密与GBT-DWT的数字盲水印算法研究

Research on Digital Blind Watermark Algorithm Based on Amold Encryption and GBT-DWT

为维护图像版权,实现对数字作品的保护,文章研究了一种基于Amold加密与GBT-DWT的数字盲水印方法。该算法运用置换原理对具有识别信息的水印图片做Amold置换预处理,通过图像转换技术与离散小波二次变换逐步分解载体图片,最后将置乱水印嵌入到变换后的载体图片中,实现数字作品的版权保护。实验结果表明,嵌入的水印信息低于人类视觉系统所能承受的最小力度发现范围,经文章算法嵌入后的图像具有较好的鲁棒性与隐藏性。

In order to maintain the image copyright to realize the protection of digital works, this paper studies a digital blind watermarking method based on Amold encryption and GBT-DWT. The algorithm uses replacement principle to perform Amold replacement preprocessing on the watermark image with identifying information, and gradually decomposes the carrier image through graph transformation technology and discrete wavelet quadratic transform. Finally, it embeds the scrambled watermark into the transformed carrier image. The experimental results show that the embedded watermark information is lower than the minimum force discovery range that the human visual system can bear. The image embedded by the algorithm in this paper has better robustness and concealment.