Knowledge Commons of Institute of Automation,CAS
Robust Quantzation Index Modulation VIA Adaptive Watermarking | |
Wang, Guoxi1; Ma, Lihong1; Yu, Decong1; Cai, Kang1,3; Lu, Hanqing2 | |
发表期刊 | CHINA COMMUNICATIONS |
2008-06-01 | |
卷号 | 5期号:2页码:40-48 |
文章类型 | Article |
摘要 | In this paper, we suggest an adaptive watermarking method to improve both transparence and robustness of quantization index modulation (QIM) scheme. Instead of a fixed quantization step-size, we apply a step-size adapted to image content in each 8 x 8 block to make a balance of robust extraction and transparent embedding. The modified step-size is determined by contrast masking thresholds of Watson's Perceptual model. From a normalized crossed-correlation value between the original watermark and the detected watermark, we could observe that Our method is robust to attacks of additive white Gaussian noise (AWGN), Salt and Pepper noise and Joint Photographic Experts Group (JPEG) compression than the original QIM. By taking into account the contrast insensitivity and visible thresholds of human visual system, the Suggested improvement achieves a maximum embedding strength and an appropriate quantization step-size which is consistent with local values of a host signal. |
关键词 | Vector Projected Watermarking Adaptive Quantization Index Modulation Contrast Sensitivity Masking |
WOS标题词 | Science & Technology ; Technology |
收录类别 | SCI |
语种 | 英语 |
WOS研究方向 | Telecommunications |
WOS类目 | Telecommunications |
WOS记录号 | WOS:000260232700006 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ia.ac.cn/handle/173211/9577 |
专题 | 09年以前成果 |
作者单位 | 1.S China Univ Technol, Dept Elect Engn, GE Key Lab Comp Network, Guangzhou 510641, Peoples R China 2.Chinese Acad Sci, Natl Lab Pattern Recognit Inst Automat, Beijing 100080, Peoples R China 3.Guangdong Telecom, Guangzhou, Guangdong, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Guoxi,Ma, Lihong,Yu, Decong,et al. Robust Quantzation Index Modulation VIA Adaptive Watermarking[J]. CHINA COMMUNICATIONS,2008,5(2):40-48. |
APA | Wang, Guoxi,Ma, Lihong,Yu, Decong,Cai, Kang,&Lu, Hanqing.(2008).Robust Quantzation Index Modulation VIA Adaptive Watermarking.CHINA COMMUNICATIONS,5(2),40-48. |
MLA | Wang, Guoxi,et al."Robust Quantzation Index Modulation VIA Adaptive Watermarking".CHINA COMMUNICATIONS 5.2(2008):40-48. |
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