Title :
Analysis of the robustness of wavelet-based perceptual signatures
Author :
Hadmi, Azhar ; Puech, William ; Said, Brahim Ait Es ; Ouahman, Abdellah Ait
Author_Institution :
LIRMM Lab., Montpellier II Univ., Montpellier, France
Abstract :
Perceptual image hashing maps an image to a fixed length binary string based on the image´s appearance to the human eye, and has applications in image indexing, authentication, and watermarking. In this paper, we analyze the robustness of perceptual signatures generated by the known SHA1 hash function in the DWT domain. This is achieved by generation signatures from the coefficients of the subband LL after a DWT transformation. Experiments on large-scale database show that the proposed method is efficient, robust against common content-preserving manipulations.
Keywords :
cryptography; digital signatures; discrete wavelet transforms; image coding; SHA1 hash function; content-preserving manipulations; discrete wavelet transforms; image authentication; image indexing; image watermarking; length binary string; perceptual image hashing; wavelet-based perceptual signatures; Cryptography; Discrete wavelet transforms; Noise; Noise measurement; Robustness; Stability analysis; DWT; Perceptual image hashing; SHA1; multimedia security;
Conference_Titel :
Image Processing Theory Tools and Applications (IPTA), 2010 2nd International Conference on
Conference_Location :
Paris
Print_ISBN :
978-1-4244-7247-5
DOI :
10.1109/IPTA.2010.5586764