id: 05269968
dt: a
an: 05269968
au: Guo, Xin C.; Hatzinakos, Dimitrios
ti: Content based image hashing via wavelet and Radon transform.
so: Ip, Horace H.-S. (ed.) et al., Advances in multimedia information
    processing ‒ PCM 2007. 8th Pacific rim conference on multimedia, Hong
    Kong, China, December 11‒14, 2007. Proceedings. Berlin: Springer
    (ISBN 978-3-540-77254-5/pbk). Lecture Notes in Computer Science 4810,
    755-764 (2007).
py: 2007
pu: Berlin: Springer
la: EN
cc: 
ut: Image Hashing; Wavelet Transform; Radon Transform
ci: 
li: doi:10.1007/978-3-540-77255-2_91
ab: Summary: Image hash function based on the image content has applications in
    watermarking, authentication and image retrieval. This paper presents
    an algorithm for generating an image hash that is robust against
    content-preserving modifications and at the same time, is capable of
    detecting malicious tampering. Robust features are first extracted from
    the discrete wavelet transform followed by the Radon transform.
    Probabilistic quantization is then used to map the feature values to a
    binary sequence. Results show that the proposed method can resist
    perceptually insignificant modifications such as compression,
    filtering, scaling and rotation. It is also able to successfully detect
    content changing attacks such as insertion of foreign objects.
rv: