TY - GEN
T1 - Improvement of radon-based image hashing using image normalization
AU - Ramirez, Kelsey
AU - Nakano, Mariko
AU - Perez, Hector
PY - 2011
Y1 - 2011
N2 - Image Hashing has several applications such as image authentication, image indexing and broadcast monitoring. In the content authentication applications, the hash values of perceptually similar images generated by content preserving modification, such as compression and moderate geometric distortions, also must be similar. Taking this into account we propose an improvement of the Radon transformbased image hashing algorithms, introducing an image normalization algorithm in the preprocessing stage. In the proposed scheme, robustness against geometrical distortions is increased considerably, while keeping the robustness to other content preserving modifications, such as compression, and filtering, which are offered by Radon transform.
AB - Image Hashing has several applications such as image authentication, image indexing and broadcast monitoring. In the content authentication applications, the hash values of perceptually similar images generated by content preserving modification, such as compression and moderate geometric distortions, also must be similar. Taking this into account we propose an improvement of the Radon transformbased image hashing algorithms, introducing an image normalization algorithm in the preprocessing stage. In the proposed scheme, robustness against geometrical distortions is increased considerably, while keeping the robustness to other content preserving modifications, such as compression, and filtering, which are offered by Radon transform.
KW - Fourier Transform
KW - Normalization
KW - Radon Transform
UR - http://www.scopus.com/inward/record.url?scp=84856322346&partnerID=8YFLogxK
U2 - 10.1109/CERMA.2011.34
DO - 10.1109/CERMA.2011.34
M3 - Contribución a la conferencia
AN - SCOPUS:84856322346
SN - 9780769545639
T3 - Proceedings - 2011 IEEE Electronics, Robotics and Automotive Mechanics Conference, CERMA 2011
SP - 173
EP - 177
BT - Proceedings - 2011 IEEE Electronics, Robotics and Automotive Mechanics Conference, CERMA 2011
T2 - 2011 IEEE Electronics, Robotics and Automotive Mechanics Conference, CERMA 2011
Y2 - 15 November 2011 through 18 November 2011
ER -