Robust Watermarking based on Subsampling and Nonnegative Matrix Factorization
نویسندگان
چکیده
منابع مشابه
Robust Watermarking based on Subsampling and Nonnegative Matrix Factorization
This paper presents a novel robust digital image watermarking scheme using subsampling and nonnegative matrix factorization. Firstly, subsampling is used to construct a subimage sequence. Then, based on the column similarity of the subimage sequence, nonnegative matrix factorization (NMF) is applied to decompose the sequence. A Gaussian pseudo-random watermark sequence is embedded in the factor...
متن کاملRobust watermarking based on DWT and nonnegative matrix factorization
Article history: Received 16 September 2007 Received in revised form 1 July 2008 Accepted 16 September 2008 Available online 5 November 2008
متن کاملA Modified Digital Image Watermarking Scheme Based on Nonnegative Matrix Factorization
This paper presents a modified digital image watermarking method based on nonnegative matrix factorization. Firstly, host image is factorized to the product of three nonnegative matrices. Then, the centric matrix is transferred to discrete cosine transform domain. Watermark is embedded in low frequency band of this matrix and next, the reverse of the transform is computed. Finally, watermarked ...
متن کاملA Modified Digital Image Watermarking Scheme Based on Nonnegative Matrix Factorization
This paper presents a modified digital image watermarking method based on nonnegative matrix factorization. Firstly, host image is factorized to the product of three nonnegative matrices. Then, the centric matrix is transferred to discrete cosine transform domain. Watermark is embedded in low frequency band of this matrix and next, the reverse of the transform is computed. Finally, watermarked ...
متن کاملa modified digital image watermarking scheme based on nonnegative matrix factorization
this paper presents a modified digital image watermarking method based on nonnegative matrix factorization. firstly, host image is factorized to the product of three nonnegative matrices. then, the centric matrix is transferred to discrete cosine transform domain. watermark is embedded in low frequency band of this matrix and next, the reverse of the transform is computed. finally, watermarked ...
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ژورنال
عنوان ژورنال: Informatica
سال: 2008
ISSN: 0868-4952,1822-8844
DOI: 10.15388/informatica.2008.230