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dc.contributor.authorRuppertsberg, Alexa I.*
dc.contributor.authorBloj, Marina*
dc.date.accessioned2011-02-02T16:28:21Z
dc.date.available2011-02-02T16:28:21Z
dc.date.issued2008
dc.identifier.citationRuppertsberg, A. I., Bloj, M. (2008). Creating physically accurate visual stimuli for free: Spectral rendering with RADIANCE. Behavior Research Methods. Vol. 40, No. 1, pp. 304-308.en_US
dc.identifier.urihttp://hdl.handle.net/10454/4768
dc.descriptionnoen_US
dc.description.abstractVisual psychophysicists, who study object, color, and light perception, have a demand for software that produces complex but, at the same time, physically accurate stimuli for their experiments. The number of computer graphic packages that simulate the physical interaction of light and surfaces is limited, and mostly they require the purchase of a license. RADIANCE (Ward, 1994), however, is freely available and popular in the visual perception community, making it a prime candidate. We have shown previously that RADIANCE¿s simulation accuracy is greatly improved when color is coded by spectra, rather than by the originally envisaged RGB triplets (Ruppertsberg & Bloj, 2006). Here, we present a method for spectral rendering with RADIANCE to generate hyperspectral images that can be converted to XYZ images (CIE 1931 system) and then to machine-dependent RGB images. Generating XYZ stimuli has the added advantage of making stimulus images independent of display devices and, thereby, facilitating the process of reproducing results across different labs. Materials associated with this article may be downloaded from www.psychonomic.org.en_US
dc.language.isoenen_US
dc.relation.isreferencedbyhttp://dx.doi.org/10.3758/BRM.40.1.304en_US
dc.subjectSpectral renderingen_US
dc.subjectRADIANCEen_US
dc.titleCreating physically accurate visual stimuli for free: Spectral rendering with RADIANCE.en_US
dc.status.refereedYesen_US
dc.typeArticleen_US


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