Colorimetric calibration of high dynamic range images with a ColorChecker chart

D. Varghese, R. Wanat, R.K. Mantiuk

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Abstract

In this paper we assess the quality of colorimetric calibration of HDR images captured using the multi-exposure technique. Three cameras were used to take HDR photographs of 4 scenes containing a color checker chart (XRite) and custom color patches. These were also measured using a spectrometer to provide ground truth data. One of the scenes was then used as a training for 2 camera calibration models, one including and one without the black level. The parameters of the models were fitted by optimizing an error function based on the CIE2000 ∆E color error measure. For the remaining 3 scenes, the accuracy of the fit was verified using the CIE2000 ∆E error between the measured and predicted color values. Our results indicate that a very good fit can be achieved, in the range of 0.8 to 2.1 ∆E using the model without black level.
Original languageEnglish
Title of host publicationHDRI 2014 - Second International Conference and SME Workshop on HDR Imaging
EditorsKadi Bouatouch , Alan Chalmers
Place of PublicationSarajevo Bosnia
PublisherInternational University of Sarajevo
Number of pages6
Publication statusPublished - 2014
Externally publishedYes
EventInternational Conference and SME Workshop on HDR Imaging 2014 - Sarajevo, Bosnia and Herzegovina
Duration: 4 Mar 20145 Mar 2014
Conference number: 2nd
http://ic1005-hdri.inesctec.pt/

Conference

ConferenceInternational Conference and SME Workshop on HDR Imaging 2014
Abbreviated titleHDRi 2014
CountryBosnia and Herzegovina
CitySarajevo
Period4/03/145/03/14
Internet address

Cite this

Varghese, D., Wanat, R., & Mantiuk, R. K. (2014). Colorimetric calibration of high dynamic range images with a ColorChecker chart. In K. Bouatouch , & A. Chalmers (Eds.), HDRI 2014 - Second International Conference and SME Workshop on HDR Imaging International University of Sarajevo. http://ic1005-hdri.inesctec.pt/publications/proceedings