Lattice Algorithms for Compression Color Space Estimation in JPEG Images

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dc.citation.bibtexNameinproceedingsen_US
dc.citation.conferenceNameInternational Workshop on Combinatorial Image Analysisen_US
dc.citation.locationPhiladelphia, PAen_US
dc.contributor.authorNeelamani, Rameshen_US
dc.contributor.authorde Queiroz, Ricardoen_US
dc.contributor.authorBaraniuk, Richard G.en_US
dc.contributor.orgDigital Signal Processing (http://dsp.rice.edu/)en_US
dc.date.accessioned2007-10-31T00:55:31Z
dc.date.available2007-10-31T00:55:31Z
dc.date.issued2001-08-01en
dc.date.modified2006-07-17en_US
dc.date.note2006-07-17en_US
dc.date.submitted2001-08-01en_US
dc.descriptionConference Paperen_US
dc.description.abstractJPEG (Joint Photographic Experts Group) is an international standard to compress and store digital color images [5]. Given a color image that was previously JPEG-compressed in some hidden color space, we aim to estimate this unknown compression color space from the image. This knowledge is potentially useful for color image enhancement and JPEG re-compression. JPEG operates on the discrete cosine transform (DCT) coefficients of each color plane independently during compression. Consequently, the DCT coefficients of the color image conform to a lattice structure. We exploit this special geometry using the lattice reduction algorithm from number theory and cryptography to estimate the compression color space. Simulations verify that the proposed algorithm yields accurate compression color space estimates.en_US
dc.description.sponsorshipDefense Advanced Research Projects Agencyen_US
dc.description.sponsorshipOffice of Naval Researchen_US
dc.description.sponsorshipNational Science Foundationen_US
dc.identifier.citationR. Neelamani, R. de Queiroz and R. G. Baraniuk, "Lattice Algorithms for Compression Color Space Estimation in JPEG Images," 2001.
dc.identifier.doihttp://dx.doi.org/10.1016/S1571-0661(04)80990-3en_US
dc.identifier.urihttps://hdl.handle.net/1911/20141
dc.language.isoeng
dc.subjectDCT coefficients*
dc.subjectcompression*
dc.subject.keywordDCT coefficientsen_US
dc.subject.keywordcompressionen_US
dc.subject.otherDSP for Communicationsen_US
dc.titleLattice Algorithms for Compression Color Space Estimation in JPEG Imagesen_US
dc.typeConference paper
dc.type.dcmiText
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