Robust image hashing based on random Gabor filtering and dithered lattice vector quantization

• Main Authors: Li, Yuenan., Lu, Zheming., Zhu, Ce., Niu, Xiamu.
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2013
• Subjects: DRNTU::Engineering::Electrical and electronic engineering
• Online Access: https://hdl.handle.net/10356/84794; http://hdl.handle.net/10220/13476
• Institution: Nanyang Technological University

In this paper, we propose a robust-hash function based on random Gabor filtering and dithered lattice vector quantization (LVQ). In order to enhance the robustness against rotation manipulations, the conventional Gabor filter is adapted to be rotation invariant, and the rotation-invariant filter is...