Measuring and modeling anisotropic reflection
SIGGRAPH '92 Proceedings of the 19th annual conference on Computer graphics and interactive techniques
The RADIANCE lighting simulation and rendering system
SIGGRAPH '94 Proceedings of the 21st annual conference on Computer graphics and interactive techniques
Toward a psychophysically-based light reflection model for image synthesis
Proceedings of the 27th annual conference on Computer graphics and interactive techniques
A signal-processing framework for inverse rendering
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
Visual equivalence: towards a new standard for image fidelity
ACM SIGGRAPH 2007 papers
The influence of shape on the perception of material reflectance
ACM SIGGRAPH 2007 papers
Shape-dependent gloss correction
Proceedings of the 5th symposium on Applied perception in graphics and visualization
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What determines the color appearance of real objects viewed under natural conditions? The light reflected from different locations on a single object can vary enormously. This variation is enhanced when the material properties of the object are changed from matte to glossy. Yet humans have no trouble assigning a color name to most things. We studied how people perceive the color of spheres in complex scenes. Observers viewed graphics simulations of a three-dimensional scene containing two spheres, test and match. The observer's task was to adjust the match sphere until its color appearance was the same as that of the test sphere. The match sphere was always matte, and observers varied its color by changing the simulated spectral reflectance function. The surface gloss of the test spheres was varied across conditions. The data show that for fixed test sphere body reflectance, color appearance depends on surface gloss. This effect is small, however, compared to the variation that would be expected if observers simply matched the average of the light reflected from the test.