CASIA OpenIR  > 09年以前成果
Modified quantization index modulation watermarking adaptive to contrast masking thresholds
Wang, Guoxi1; Ma, Lihong1; Yu, Decong1; Cai, Kang1; Lu, Hanqing2
Source PublicationCHINA COMMUNICATIONS
2007-02-01
Volume4Issue:1Pages:75-84
SubtypeArticle
AbstractIn 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.
KeywordVector Projected Watermarking Adaptive Quantization Index Modulation Contrast Sensitivity Masking
WOS HeadingsScience & Technology ; Technology
Indexed BySCI
Language英语
WOS Research AreaTelecommunications
WOS SubjectTelecommunications
WOS IDWOS:000255148500008
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ia.ac.cn/handle/173211/9477
Collection09年以前成果
Affiliation1.S China Univ Technol, GD Key Lab Comp Network, Dept Elect Engn, Guangzhou 510641, Peoples R China
2.Chinese Acad Sci, Natl Lab Pattern Recognit Inst Automat, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Wang, Guoxi,Ma, Lihong,Yu, Decong,et al. Modified quantization index modulation watermarking adaptive to contrast masking thresholds[J]. CHINA COMMUNICATIONS,2007,4(1):75-84.
APA Wang, Guoxi,Ma, Lihong,Yu, Decong,Cai, Kang,&Lu, Hanqing.(2007).Modified quantization index modulation watermarking adaptive to contrast masking thresholds.CHINA COMMUNICATIONS,4(1),75-84.
MLA Wang, Guoxi,et al."Modified quantization index modulation watermarking adaptive to contrast masking thresholds".CHINA COMMUNICATIONS 4.1(2007):75-84.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang, Guoxi]'s Articles
[Ma, Lihong]'s Articles
[Yu, Decong]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, Guoxi]'s Articles
[Ma, Lihong]'s Articles
[Yu, Decong]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, Guoxi]'s Articles
[Ma, Lihong]'s Articles
[Yu, Decong]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.