DCT Sign-Based Similarity Measure for JPEG Image Retrieval

Fitri ARNIA  Ikue IIZUKA  Masaaki FUJIYOSHI  Hitoshi KIYA  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E90-A    No.9    pp.1976-1985
Publication Date: 2007/09/01
Online ISSN: 1745-1337
DOI: 10.1093/ietfec/e90-a.9.1976
Print ISSN: 0916-8508
Type of Manuscript: PAPER
Category: Image
image similarity,  DCT coefficients signs,  image retrieval,  JPEG,  JPEG 2000,  

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We propose a method to retrieve similar and duplicate images from a JPEG (Joint Photographic Image Group) image database. Similarity level is decided based on the DCT (Discrete Cosine Transform) coefficients signs. The method is simple and fast because it uses the DCT coefficients signs as features, which can be obtained directly after partial decoding of JPEG bitstream. The method is robust to JPEG compression, in which similarity level of duplicate images, i.e., images that are compressed from the same original images with different compression ratios, is not disguised due to JPEG compression. Simulation results showed the superiority of the method compared to previous methods in terms of computational complexity and robustness to JPEG compression.