Please use this identifier to cite or link to this item: http://hdl.handle.net/2080/3151
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dc.contributor.authorSahu, Sidhant-
dc.contributor.authorOkade, Manish-
dc.date.accessioned2019-01-03T11:06:02Z-
dc.date.available2019-01-03T11:06:02Z-
dc.date.issued2018-12-
dc.identifier.citationIEEE International Workshop on Information Forensics and Security (WIFS 2018), Hong Kong, China, 11-13 December 2018en_US
dc.identifier.urihttp://hdl.handle.net/2080/3151-
dc.descriptionCopyright of this document belongs to proceedings publisher.en_US
dc.description.abstractThis paper addresses the problem of forensic analysis of recompressed images in the presence of image resizing, particularly the estimation of the resizing factor by which the image underwent resizing. The proposed method analyzes the Welch power spectral density for presence of peaks introduced by double JPEG artefacts in-order to arrive at the correct resizing factor. The correct resizing factor estimation serves as an important forensic clue since it provides vital information on the life history of the image. Experimental validation carried out utilizing several double compressed JPEG images taken from heterogeneous datasets along with comparative analysis with an existing method shows superior performance for the proposed method.en_US
dc.subjectImage Resizingen_US
dc.subjectWelch Power Spectral Density Analysisen_US
dc.subjectDouble Compressed JPEG Imagesen_US
dc.titleExposing Image Resizing utilizing Welch Power Spectral Density Analysis for Double Compressed JPEG Imagesen_US
dc.typeArticleen_US
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