[PDF][PDF] 一种解密图像无背景噪声的加密全息数字水印技术

刘真, 白韬韬, 卢鹏 - 光学学报, 2015 - researching.cn
摘要提出了一种新的加密计算全息技术, 原始水印图像经过双随机相位编码,
所得复数图像经过共轭对称延拓和傅里叶变换后得到全息图, 所得全息图解密图像上没有视觉 …

On the implementation of a digital watermarking based on phase congruency

A Basu, A Saha, J Das, S Roy, S Mitra, I Mal… - Proceedings of the 3rd …, 2015 - Springer
In this paper a human visual system (HVS) model guided least significant bit (LSB)
watermarking approach for copyright protection is proposed. The projected algorithm can …