VLSI Architecture for Spread Spectrum Image Watermarking in Walsh-Hadamard Transform Domain Using Binary Watermark

2012 ◽  
Author(s):  
Sudip Ghosh ◽  
Somsubhra Talapatra ◽  
Sudipta Chakraborty ◽  
Navonil Chatterjee ◽  
Hafizur Rahaman ◽  
...  
Keyword(s):  
Spread Spectrum ◽  
Image Watermarking ◽  
Vlsi Architecture ◽  
Hadamard Transform ◽  
Transform Domain ◽  
Walsh Hadamard Transform

VLSI Architecture for Spread Spectrum Image Watermarking Using Binary Watermark

2012 ◽  
Author(s):  
Sudip Ghosh ◽  
Somsubhra Talapatra ◽  
Debasish Mondal ◽  
Navonil Chatterjee ◽  
Hafizur Rahaman ◽  
...  
Keyword(s):  
Spread Spectrum ◽  
Image Watermarking ◽  
Vlsi Architecture

VLSI Architecture for Spatial Domain Spread Spectrum Image Watermarking Using Gray-Scale Watermark

2012 ◽  
pp. 375-376
Author(s):  
Sudip Ghosh ◽  
Somsubhra Talapatra ◽  
Debasish Mondal ◽  
Navonil Chatterjee ◽  
Hafizur Rahaman ◽  
...  
Keyword(s):  
Spread Spectrum ◽  
Image Watermarking ◽  
Vlsi Architecture ◽  
Spatial Domain ◽  
Gray Scale

scholarly journals SVD-Based Image Watermarking Using the Fast Walsh-Hadamard Transform, Key Mapping, and Coefficient Ordering for Ownership Protection

Symmetry ◽  
2019 ◽  
Vol 12 (1) ◽  
pp. 52 ◽  
Author(s):  
Tahmina Khanam ◽  
Pranab Kumar Dhar ◽  
Saki Kowsar ◽  
Jong-Myon Kim
Keyword(s):  
State Of The Art ◽  
Image Watermarking ◽  
Singular Values ◽  
Multimedia Data ◽  
Cover Image ◽  
Hadamard Transform ◽  
Art Methods ◽  
Walsh Hadamard Transform ◽  
Value Decomposition ◽  
Ownership Protection

Proof of ownership on multimedia data exposes users to significant threats due to a myriad of transmission channel attacks over distributed computing infrastructures. In order to address this problem, in this paper, an efficient blind symmetric image watermarking method using singular value decomposition (SVD) and the fast Walsh-Hadamard transform (FWHT) is proposed for ownership protection. Initially, Gaussian mapping is used to scramble the watermark image and secure the system against unauthorized detection. Then, FWHT with coefficient ordering is applied to the cover image. To make the embedding process robust and secure against severe attacks, two unique keys are generated from the singular values of the FWHT blocks of the cover image, which are kept by the owner only. Finally, the generated keys are used to extract the watermark and verify the ownership. The simulation result demonstrates that our proposed scheme is highly robust against numerous attacks. Furthermore, comparative analysis corroborates its superiority among other state-of-the-art methods. The NC of the proposed method is numerically one, and the PSNR resides from 49.78 to 52.64. In contrast, the NC of the state-of-the-art methods varies from 0.7991 to 0.9999, while the PSNR exists in the range between 39.4428 and 54.2599.

scholarly journals Dual Mode VLSI Architecture for Spread Spectrum Image Watermarking using Binary Watermark

2012 ◽  
Vol 6 ◽  
pp. 784-791 ◽  
Author(s):  
Sudip Ghosh ◽  
Somsubhra Talapatra ◽  
Jayasree Sharma ◽  
Navonil Chatterjee ◽  
Hafizur Rahaman ◽  
...  
Keyword(s):  
Spread Spectrum ◽  
Image Watermarking ◽  
Vlsi Architecture ◽  
Dual Mode

scholarly journals Computationally Efficient Robust Color Image Watermarking Using Fast Walsh Hadamard Transform

2017 ◽  
Vol 3 (4) ◽  
pp. 46 ◽  
Author(s):  
Suja Kalarikkal Pullayikodi ◽  
Naser Tarhuni ◽  
Afaq Ahmed ◽  
Fahad Shiginah
Keyword(s):  
Color Image ◽  
Image Watermarking ◽  
Hadamard Transform ◽  
Computationally Efficient ◽  
Color Image Watermarking ◽  
Walsh Hadamard Transform
Sign in / Sign up

Export Citation Format

Share Document