Red-cyan anaglyph image watermarking using DWT, Hadamard transform and singular value decomposition for copyright protection

This paper proposes a unique Red-Cyan Anaglyph image watermarking using DWT, Fast Walsh Hadamard transform and SVD. Watermarking of this particular image is not done extensively so far. Thus, this study focuses on the watermarking of red-cyan anaglyph image for copyright protection. With the help of DWT, Hadamard transform and SVD, the system tries to extract a robust feature to embed the watermark. The watermarking is carried out as. The cover image is transformed using Discrete Wavelet Transform and the watermark image of size 32 x 32 is scrambled using Arnold transform and it is hidden into the hadamard transformed blocks of the Anaglyph image exploiting singular values obtained by applying Singular Value Decomposition. The performance of this proposed system is checked for its robust nature and its imperceptibility on Middlebury Stereo database against usual image processing attacks such as Gaussian noise, filtering, etc. From the simulation results, it is clearly known that it has achieved better outcomes in terms of robustness and imperceptibility than the former existing papers. (C) 2019 Elsevier Ltd. All rights reserved.