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基于图像特征的水印算法
引用本文:沈炎斌.基于图像特征的水印算法[J].三明学院学报,2012,29(2):41-45,50.
作者姓名:沈炎斌
作者单位:福州大学至诚学院计算机工程系,福建福州,350002
摘    要:提出一种基于尺度不变特征点的数字水印算法,利用尺度不变特征点作为同步水印的参考点,通过自适应的邻域半径来从中筛选出用于同步水印的参考点,根据基于图像内容的水印模型(CBWM),生成并嵌入水印,同时考虑到小波域的优良特性,选择从小波低频系数中寻找特征点。结果表明该算法表现出较好的鲁棒性。

关 键 词:图像特征  SIFT  小波

Watermarking Algorithm Based on Image Feature
SHEN Yan-bin.Watermarking Algorithm Based on Image Feature[J].Journal of Sanming University,2012,29(2):41-45,50.
Authors:SHEN Yan-bin
Institution:SHEN Yan-bin(Department of Computer Engineering,Zhicheng College of Fuzhou University,Fuzhou 350002,China)
Abstract:Based on the scale invariant feature keypoints,a watermarking algorithm was proposed in this paper,.By using the scale invariant feature keypoints as reference points,synchronize watermarking were chosen through the adaptive neighborhood radius.According to the content-based watermark model(CBWM),watermarking was generated and embedded.Considering the good characteristic of the wavelet,feature keypoints were chosen from the wavelet low-frequency coefficients.The algorithm has good robustness.
Keywords:image feature  SIFT  wavelet
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