Robust Watermarking Algorithm against the Geometric Attacks based on Non-Subsampled Shearlet Transform and Harris-Laplace Detector

<div>Cutting attack on different images with quarter, half, irregular: cameraman (a), (c), (e), extracted watermark (b), (d), (f); peppers (a1), (c1), (e1), extracted watermark (b1), (d1), (f1); couple (a2), (c2), (e2), extracted watermark (b2), (d2), (f2).</div>

Security and Communication Networks

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Figure 12

Figure 12: Robust Watermarking Algorithm against the Geometric Attacks based on Non-Subsampled Shearlet Transform and Harris-Laplace Detector 