Research on Color Watermarking Algorithm Based on RDWT-SVD
سال انتشار: 1396
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 286
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شناسه ملی سند علمی:
JR_JECEI-5-2_007
تاریخ نمایه سازی: 20 آبان 1397
چکیده مقاله:
In this paper, a color image watermarking algorithm based on Redundant Discrete Wavelet Transform (RDWT) and Singular Value Decomposition (SVD) is proposed. The new algorithm selects blue component of a color image to carry the watermark information since the Human Visual System (HVS) is least sensitive to it. To increase the robustness especially towards affine attacks, RDWT is adopted for its excellent shift in-variance. In addition, the SVD technique can also ensure the robustness due to the eminent properties of singular values. It is worth mentioning that the watermark information is not processed by SVD in embedding procedure, which prevents the occurrence of false positive detection. Meanwhile, to acquire a balance between imperceptibility and robustness, various scaling factor values are used towards different sub-bands. Experimental results show that the proposed algorithm has outstanding security, imperceptibility and robustness
کلیدواژه ها:
نویسندگان
Yingshuai Han
Qufu Normal University, Rizhao City, Shandong Province, China.
Xinchun Cui
Qufu Normal University, Rizhao City, Shandong Province, China.
Yusheng Zhang
Qufu Normal University, Rizhao City, Shandong Province, China.
Tingting Xu
Qufu Normal University, Rizhao City, Shandong Province, China.