JPEG Compression History Estimation for Color Images

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dc.citation.bibtexNameinproceedingsen_US
dc.citation.conferenceNameIEEE International Conference on Image Processingen_US
dc.citation.firstpage245
dc.citation.lastpage248
dc.citation.locationBarcelona, Spainen_US
dc.citation.volumeNumber3en_US
dc.contributor.authorNeelamani, Rameshen_US
dc.contributor.authorde Queiroz, Ricardoen_US
dc.contributor.authorFan, Zhigangen_US
dc.contributor.authorBaraniuk, Richard G.en_US
dc.contributor.orgDigital Signal Processing (http://dsp.rice.edu/)en_US
dc.date.accessioned2007-10-31T00:55:45Z
dc.date.available2007-10-31T00:55:45Z
dc.date.issued2003-09-01en
dc.date.modified2006-06-06en_US
dc.date.note2006-06-06en_US
dc.date.submitted2003-09-01en_US
dc.descriptionConference Paperen_US
dc.description.abstractWe routinely encounter digital color images that were previously JPEG-compressed. We aim to retrieve the various settings - termed JPEG compression history (CH) - employed during previous JPEG operations. This information is often discarded en-route to the image's current representation. The discrete cosine transform coefficient histograms of previously JPEG-compressed images exhibit near-periodic behavior due to quantization. We propose a statistical approach to exploit this structure and thereby estimate the image's CH. Using simulations, we first demonstrate the accuracy of our estimation. Further, we show that JPEG recompression performed by exploiting the estimated CH strikes an excellent file-size versus distortion tradeoff.en_US
dc.identifier.citationR. Neelamani, R. de Queiroz, Z. Fan and R. G. Baraniuk, "JPEG Compression History Estimation for Color Images," vol. 3, 2003.
dc.identifier.doihttp://dx.doi.org/10.1109/ICIP.2003.1247227en_US
dc.identifier.urihttps://hdl.handle.net/1911/20146
dc.language.isoeng
dc.subject.otherDSP for Communicationsen_US
dc.titleJPEG Compression History Estimation for Color Imagesen_US
dc.typeConference paper
dc.type.dcmiText
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