The Impact of Exposure Settings in Digital Image Forensics

dc.contributor.author Lin, Li
dc.contributor.author Chen, Wenhao
dc.contributor.author Wang, Yangxiao
dc.contributor.author Reinder, Stephanie
dc.contributor.author Guan, Yong
dc.contributor.author Newman, Jennifer
dc.contributor.author Wu, Min
dc.contributor.department Center for Statistics and Applications in Forensic Evidence
dc.contributor.department Mathematics
dc.date 2020-02-17T22:11:23.000
dc.date.accessioned 2020-06-30T01:57:52Z
dc.date.available 2020-06-30T01:57:52Z
dc.date.copyright Mon Jan 01 00:00:00 UTC 2018
dc.date.embargo 2020-02-17
dc.date.issued 2018-09-06
dc.description.abstract <p>The digital image forensics academic community is facing a growing challenge. The volume of images presented to digital image forensic practitioners increases every day, and with it, more variety of possible outcomes in image analysis. When an academic forensic tool is applied to a realistic case, the effects of imaging factors, including the noise level, should be seriously considered. Although there have been conjectures that shot noise would affect the empirical accuracy of a forensic analyzer, it has not yet received enough experimental support. In this paper, instead of estimating the noise, we inspect two measurable factors of exposure settings, ISO speed and exposure time, and present a set of experiments using mobile phone data to demonstrate the effect of exposure settings on steganalysis and PRNU-based camera device identification. Our results show that more investigations into the characteristics of image data with respect to exposure settings is required to fully understand identification or classification that is concerned with low-magnitude noise measurements, such as PRNU or stegoembedded messages.</p>
dc.description.comments <p>This is a manuscript of a proceeding published as Lin, Li, Wenhao Chen, Yangxiao Wang, Stephanie Reinder, Yong Guan, Jennifer Newman, and Min Wu. "The impact of exposure settings in digital image forensics." In <em>2018 25th IEEE International Conference on Image Processing (ICIP)</em>, pp. 540-544. IEEE, 2018. Posted with permission of CSAFE.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/csafe_conf/4/
dc.identifier.articleid 1003
dc.identifier.contextkey 16566919
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath csafe_conf/4
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/20323
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/csafe_conf/4/Lin__2018__IEEE_Conference_Proceedings.pdf|||Sat Jan 15 00:04:59 UTC 2022
dc.subject.disciplines Forensic Science and Technology
dc.title The Impact of Exposure Settings in Digital Image Forensics
dc.type article
dc.type.genre conference
dspace.entity.type Publication
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relation.isOrgUnitOfPublication 82295b2b-0f85-4929-9659-075c93e82c48
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