Color Image Blind Watermarking Algorithm Based on QR Decomposition and Voting in DWT Domain
نویسندگان
چکیده
منابع مشابه
Color Image Blind Watermarking Algorithm Based on QR Decomposition and Voting in DWT Domain
To achieve a better trade-off between robustness and imperceptibility, a blind watermarking algorithm based on QR decomposition and voting for color image in DWT domain is proposed in the paper. Most of the existing QR decomposition based watermarking schemes take the first row of R matrix into consideration while in our approach the watermark is embedded by modifying the first column element o...
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In watermarking schemes, the discrete wavelet transform (DWT) is broadly used because its frequency component separation is very useful. Moreover, LU decomposition has little influence on the visual quality of the watermark. Hence, in this paper, a novel blind watermark algorithm is presented based on LU transform and DWT for the copyright protection of digital images. In this algorithm, the co...
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A novel color image watermarking scheme based on DWT (Discrete Wavelet Transform) and QR decomposition is proposed to embed color watermark image into color host image. Firstly, the each component of the color host image is transformed by one-level DWT, and further divided to 4 4 non-overlapping pixel blocks. Then, each selected pixel block is decomposed by QR decomposition and the first row el...
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ژورنال
عنوان ژورنال: International Journal of Security and Its Applications
سال: 2016
ISSN: 1738-9976,1738-9976
DOI: 10.14257/ijsia.2016.10.11.04