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基于离散小波变换的图像数字水印算法

Release time:2023-10-19 Hits:

Key Words:离散小波变换;;图像水印;;不可感知性;;鲁棒性

Abstract:提出了一种基于离散小波变换的图像数字水印嵌入提取算法。为保证水印的安全性,在嵌入之前先对水印做置乱处理,选择中低频带嵌入水印信息,以保证其不可感知性和鲁棒性。实验表明,该算法对常见的图像剪切、中值滤波、JPEG压缩和噪声干扰等均具有一定的抵抗力,较好地兼顾了图像水印的不可感知性要求和鲁棒性要求。

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基于离散小波变换的图像数字水印算法