Li, HanPeers, PieterJaakko Lehtinen and Derek Nowrouzezahrai2015-06-232015-06-232015https://doi.org/10.1111/cgf.12683We present an example-based approach for radiometrically linearizing photographs that takes as input a radiometrically linear exemplar image and a target regular uncalibrated image of the same scene, possibly from a different viewpoint and/or under different lighting. The output of our method is a radiometrically linearized version of the target image. Modeling the change in appearance of a small image patch seen from a different viewpoint and/or under different lighting as a linear 1D subspace, allows us to recast radiometric transfer in a form similar to classic radiometric calibration from exposure stacks. The resulting radiometric transfer method is lightweight and easy to implement. We demonstrate the accuracy and validity of our method on a variety of scenes.I.3.8 [Computer Graphics]ApplicationsI.4.1 [Image Processing and Computer Vision]Digitization and Image CaptureRadiometry10.1111/cgf.12683109-118