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An Extended Image Hashing Concept: Content-Based Fingerprinting Using FJLT
2009
EURASIP Journal on Information Security
Dimension reduction techniques, such as singular value decomposition (SVD) and nonnegative matrix factorization (NMF), have been successfully applied in image hashing by retaining the essential features of the original image matrix. However, a concern of great importance in image hashing is that no single solution is optimal and robust against all types of attacks. The contribution of this paper is threefold. First, we introduce a recently proposed dimension reduction technique, referred as
doi:10.1155/2009/859859
fatcat:o2wbnnbcfnd5vlat4rcyqg2riy