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- W2390726519 abstract "A new semi-fragile watermarking authentication algorithm is proposed,the algorithm first divides the image into four blocks,then the feature of each block of image is extracted from low frequency coefficient of three level wavelet transform,and then the feature as the watermark is embedded into corresponding block of image,the four blocks embedded into watermark were combined into a new image.The watermark can be extracted without involving either the host image or the original watermark.Theoretical analysis and experimental results show that the algorithm can be carriers of images of any size,and with good transparency,and it can not only resist non-malicious attacks,such as noise and lossy compression,it can also effectively detect and locate the cut,replaced,and other malicious attacks." @default.
- W2390726519 created "2016-06-24" @default.
- W2390726519 creator A5062950663 @default.
- W2390726519 date "2012-01-01" @default.
- W2390726519 modified "2023-09-23" @default.
- W2390726519 title "A Semi-fragile Watermarking Authentication Algorithm Based on Block and Wavelet Domain of Image" @default.
- W2390726519 hasPublicationYear "2012" @default.
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