一种快速的零水印印刷品信息隐藏方法  

A fast Zero-Watermark Information Hiding Method for Printed Matter

作　　者：林荣胜 柯逍[1,2] LIN Rong-sheng;KE Xiao(College of Mathematics and Computer Science,Fuzhou University,Fuzhou Fujian 350116,China;Fujian Key Laboratory of Network Computing and Intelligent Information Processing,Fuzhou University,Fuzhou Fujian 350116,China)

机构地区：[1]福州大学数学与计算机科学学院,福建福州350116 [2]福州大学福建省网络计算与智能信息处理重点实验室,福建福州350116

出　　处：《计算机仿真》2023年第4期186-189,194,共5页Computer Simulation

基　　金：国家自然科学基金(61972097);福建省自然科学基金(2018J1798);高校产学重大项目(2018H6010)。

摘　　要：在利用图像作为载体进行水印隐藏的时候,往往希望能对图像的像素值不修改或者减少运算修改,并能方便地提取出图像中隐藏的水印。提出一种基于零水印的算法,结合尺度不变特征转换(Scale Invariant Feature Transformation, SIFT)、奇异值分解(Singular Value Decomposition, SVD)和图像金字塔等技术,实现了在对图像打印后,不需要专业的扫描仪,仅利用手机等设备拍照就能够方便地提取出隐藏在图像中的水印。实验中使用F1-score作为评判指标,达到了平均0.78以上的结果。结果表明,上述算法具有很强的鲁棒性和优秀的水印可见性。When the image is used as the carrier for watermark concealment,we often hope that the pixel value of the image can not be modified or be slightly modified,and that the watermark hidden in the image can be extracted easily.In this paper,a zero-watermarking algorithm based on Scale Invariant Feature Transformation(SIFT),Singular Value Decomposition(SVD)and image pyramid technology is proposed.After the image is printed,no professional scanner is needed.Instead,the watermark hidden in the image can be easily extracted by taking pictures with mobile phones and other devices.In the experiment,F1-score was used as the evaluation index,and the average result was above 0.78,showing that this algorithm has good robustness and excellent watermark visibility.

关 键 词：水印隐藏 零水印 拍照提取水印 尺度不变特征转换 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]