Robust Image Hashing for Detecting Small Tampering Using a Hyperrectangular Region

In this paper, we propose a robust image hashing method that enables detecting small tampering. Existing hashing methods are too robust, and the trade-off relation between the robustness and the sensitivity to visual content changes needs to be improved to detect small tampering. Though the adaptive thresholding method can improve the trade-off, there's more room to improve and it requires tampere...