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- 2017
基于QR码的瓦片遥感影像数字水印算法
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Abstract:
针对瓦片遥感影像数据，提出一种基于快速响应矩阵码（quick response code，QR code）的强鲁棒性盲水印算法。算法的设计充分顾及了瓦片遥感影像的数据特征，将包含版权认证信息的QR码水印图像进行数据压缩和预处理，有效降低了嵌入数据量；通过在水印嵌入单元和水印信息位之间建立稳定的映射关系确保水印信息的可靠嵌入；采用改变像素值位平面统计特征的方法实现对含水印瓦片遥感影像的快速定位。最后，对所提算法进行了试验验证。结果表明，QR码的引入有效提升了水印信息容量，所提算法对于常规图像处理操作和拼接攻击具备良好的保真度和鲁棒性，可实际应用于瓦片遥感影像数据的版权保护
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