کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
453454 | 694856 | 2007 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Novel robust image watermarking using difference correlation detector
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
شبکه های کامپیوتری و ارتباطات
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چکیده انگلیسی
This paper presents a robust digital image watermarking scheme based on subsampling and difference correlation. Four subimages are obtained from the host image by subsampling. A binary watermark is bit-wisely embedded in the DCT domain of two of the subimages selected by a secret key. The watermark is detected using coefficient difference correlation and does not need the original image. Since the subimages are highly correlated with each other, the proposed difference correlation detector has a better performance than a common coefficient correlation detection. Experimental results show good robustness of the proposed scheme.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Standards & Interfaces - Volume 29, Issue 1, January 2007, Pages 132–137
Journal: Computer Standards & Interfaces - Volume 29, Issue 1, January 2007, Pages 132–137
نویسندگان
Wei Lu, Hongtao Lu, Fu-Lai Chung,