Attribute-preserving Gamut Mapping of Measured BRDFs

dc.contributor.authorSun, Tianchengen_US
dc.contributor.authorSerrano, Anaen_US
dc.contributor.authorGutierrez, Diegoen_US
dc.contributor.authorMasia, Belenen_US
dc.contributor.editorZwicker, Matthias and Sander, Pedroen_US
dc.date.accessioned2017-06-19T06:50:29Z
dc.date.available2017-06-19T06:50:29Z
dc.date.issued2017
dc.description.abstractReproducing the appearance of real-world materials using current printing technology is problematic. The reduced number of inks available define the printer's limited gamut, creating distortions in the printed appearance that are hard to control. Gamut mapping refers to the process of bringing an out-of-gamut material appearance into the printer's gamut, while minimizing such distortions as much as possible. We present a novel two-step gamut mapping algorithm that allows users to specify which perceptual attribute of the original material they want to preserve (such as brightness, or roughness). In the first step, we work in the low-dimensional intuitive appearance space recently proposed by Serrano et al. [SGM 16], and adjust achromatic reflectance via an objective function that strives to preserve certain attributes. From such intermediate representation, we then perform an image-based optimization including color information, to bring the BRDF into gamut. We show, both objectively and through a user study, how our method yields superior results compared to the state of the art, with the additional advantage that the user can specify which visual attributes need to be preserved. Moreover, we show how this approach can also be used for attribute-preserving material editing.en_US
dc.description.number4
dc.description.sectionheadersBRDFs and Illumination
dc.description.seriesinformationComputer Graphics Forum
dc.description.volume36
dc.identifier.doi10.1111/cgf.13223
dc.identifier.issn1467-8659
dc.identifier.pages047-054
dc.identifier.urihttps://doi.org/10.1111/cgf.13223
dc.identifier.urihttps://diglib.eg.org:443/handle/10.1111/cgf13223
dc.publisherThe Eurographics Association and John Wiley & Sons Ltd.en_US
dc.subjectComputing methodologies
dc.subject
dc.subject> Reflectance modeling
dc.subjectPerception
dc.titleAttribute-preserving Gamut Mapping of Measured BRDFsen_US
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