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基于HVS和整数小波变换的遥感图像水印算法 被引量:10

A Watermarking Algorithm for Remote Sensing Image Based on HVS and Integer Wavelet Transform
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摘要 结合人眼视觉系统与整数小波变换,提出一种用于遥感图像版权保护的数字水印算法。水印由二值图像组成,置乱后嵌入在图像小波域的中高频部分,根据人类视觉系统的特点选择感知重要系数嵌入水印,水印嵌入量控制在可见误差范围内,水印提取时采用分层提取的方法。实验结果表明,算法实现速度快,具有较好的不可见性,并且可以有效地抵抗JPEG压缩、加噪、锐化和剪切等攻击。
出处 《测绘通报》 CSCD 北大核心 2007年第8期20-22,58,共4页 Bulletin of Surveying and Mapping
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