NDLI: A DCT-SVD based robust watermarking scheme for grayscale image

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A DCT-SVD based robust watermarking scheme for grayscale image

Content Provider	ACM Digital Library
Author	Mukherjee, Soumya Pal, Arup Kumar
Abstract	In this paper, the authors have presented a robust watermarking scheme which employs both the Discrete Cosine Transform (DCT) and the Singular Value Decomposition (SVD). The proposed scheme starts with transformation of an original grayscale cover image into a transformed image using block based DCT. From each transformed block, the middle band DCT coefficients are selected to form a reduced transformed image and then the watermark is embedded into the constructed reduced transformed image after a suitable SVD operation. Insertion of the watermark into the DCT-based transformed image reveals that the proposed scheme conserve robustness against JPEG compression. The simulation results show that the proposed scheme is reasonably imperceptible and is able to resist a variety of image processing attacks/operations like image enhancement, image noising, cropping operation, JPEG compression etc.
Starting Page	573
Ending Page	578
Page Count	6
File Format	PDF
ISBN	9781450311960
DOI	10.1145/2345396.2345490
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2012-08-03
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Digital image watermarking Discrete cosine transform (dct) Singular value decomposition (svd) Multimedia security Robust watermarking scheme
Content Type	Text
Resource Type	Article

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