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Journal: JOURNAL OF ADVANCES IN COMPUTER RESEARCH | Year:0 | Volume:3 | Issue:2 | Start Page:65 | End Page:74

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Title

A MODIFIED DIGITAL IMAGE WATERMARKING SCHEME BASED ON NONNEGATIVE MATRIX FACTORIZATION

Pages

 Start Page 65 | End Page 74

Abstract

 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 image is obtained by multiplying nonnegative matrix components. The experimental results show that the proposed method is transparent and also is high robust against JPEG compression, scaling and median filter attacks.

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