Robust image hashing using image normalization and SVD decomposition

This paper introduces the use of image normalization and SVD decomposition hash functions to generate a hash value for a digital image. Image normalization is a technique that has been shown to be robust against different kinds of geometric attacks such as rotation, scaling and flipping. Using image...

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Bibliographic Details
Main Authors: Hernandez, R. A. P., Miyatake, M. N., Kurkoski, B. M.
Format: Conference Proceeding
Language:English
Subjects:
Cryptography
Matrix decomposition
Online Access:Request full text
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Description
Summary:This paper introduces the use of image normalization and SVD decomposition hash functions to generate a hash value for a digital image. Image normalization is a technique that has been shown to be robust against different kinds of geometric attacks such as rotation, scaling and flipping. Using image normalization as a preprocessing step we can increase the robustness of the hash by 50% against rotation and scaling compared to without this algorithm.
ISSN:1548-3746
1558-3899
DOI:10.1109/MWSCAS.2011.6026372