Digital Image Watermarking Method Based on Hybrid DWT-HD-SVD Technique: Attacks, PSNR, SSIM, NC
Digital Image Watermarking method based on hybrid DWT-HD-SVD Technique: Attacks, PSNR, SSIM, NC
Watermarking is identified as a major means to achieve copyright protection. It is technology of information hiding which is used to hide dedicated data in digital media like images, musics, videos etc. The main goal of this project is to provide basic watermark toolbox for researchers to evaluate watermarking methods under various attacks.
The simulation is based on the IEEE Access journal, An Optimized Image Watermarking Method Based on HD and SVD in DWT Domain. The following methods are used:
First, in the embedding process, the host image is modified to embed watermark image. Different attacks are applied to evaluate the robustness and invisibility of the proposed method by considering peak signal-to-noise ratio (PSNR), and structural similarity (SSIM). Finally, the watermark image is extracted, and the robustness is evaluated considering normalized correlation (NC).
The following attacks are considred:
Attack | Specification |
---|---|
Filter attack | Median filter (3 × 3) |
Gaussian Low-pass filter (3 × 3) | |
Average filter (3 × 3) | |
Noise attack | Gaussian noise ( var = 0.001) |
Salt & peppers noise (0.001) | |
Speckle noise (0.001) | |
Compression attack | JPEG compression (QF=50) |
JPEG2000 compression (CR=12) | |
Histogram equalization (HE) | HE attack |
Motion Blur attack | Motion blur (theta = 4, Len = 7) |
Sharpening attack | Sharpening (strength = 0.8) |
Rotation attack | Rotation (2 degree) |
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J. Liu et al., "An Optimized Image Watermarking Method Based on HD and SVD in DWT Domain," in IEEE Access, vol. 7, pp. 80849-80860, 2019. Cite
This project is distributed under Apache License 2.0