A Blind Detection Digital Watermarking Algorithm Based on Pairs ofBlocks DCT Coefficients
[1]LU Ling,SUN Xinde.A Blind Detection Digital Watermarking Algorithm Based on Pairs ofBlocks DCT Coefficients[J].Journal of Zhengzhou University (Engineering Science),2010,31(02):108112-.
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
31
Number of periods:
2010 No.02
Page number:
108112-
Column:
Public date:
2010-02-02
- Title:
- A Blind Detection Digital Watermarking Algorithm Based on Pairs ofBlocks DCT Coefficients
- Keywords:
- logistic mapping; digital watermark; robustness; blind detection
- CLC:
- -
- DOI:
- -
- Abstract:
- A new blind detection digital watermarking algorithm based on Logistic mapping is proposed in thispaper，which can be more effective for digital media copyright protection．At first watermarking image is encrypted by the chaotic sequence generated by Logistic mapping．According to the human visual system(HVS)some small blocks with size 8宰8 that have more texture complexity will be chosen.In each chosen sub—block some DCT coefficients are selected effectively in accordance with the property of common digital signalprocessing．Each pair of adjacent DCT coefficients can carry one bit watermarking information．Simulation ex—periments show that the algorithm improves effectively the robustness and the systems security．
- References:
- -
- Similar References:
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Last Update:
1900-01-01