Andranik Karakhanyan

Reversible Visual Obfuscation via Embedded Recovery Metadata: Combining Median‑Filter Irreversibility with Cryptographic Restoration

Although cloud storage platforms are widely used to safeguard personal images, data leakage and unauthorized access remain persistent threats, exposing sensitive visual content. Linear obfuscation methods such as Gaussian blur can be reversed by deconvolution when kernel parameters are known, while non-linear median fi...