Tone Reproduction for Realistic Computer Generated Images

dc.contributor.author Tumblin, John Erwin (Jack)
dc.contributor.author Rushmeier, Holly E.
dc.date.accessioned 2004-12-06T20:03:07Z
dc.date.available 2004-12-06T20:03:07Z
dc.date.issued 1991
dc.description.abstract Radiosity and other global illumination methods for image synthesis calculate the 'real world' radiance values of a scene instead of the display radiance values that will represent them. This causes 'display range' problems that are often solved by ad-hoc means, giving little assurance that the evoked visual sensations (brightness, color, etc.) are truly equivalent. Workers in photography have studied such perception matching as 'tone reproduction', and devised correcting operators from both empirical and vision research data. Corrections are usually limited by the chemical/optical restrictions of film. These practical film methods were adopted by television systems and then by computer graphics, despite the ease of implementing better correction operators by computer. In this paper we advocate the use of better tone reproduction for computer graphics. We give a general framework for tone reproduction, where mathematical models of the display device and human observers define an explicit conversion from real-world to display device radiance. These are used to review tone reproduction operators used for film and television. A brief summary of some applicable vision research literature leads to a simple example of an improved operator. We apply the Stevens & Stevens models of brightness vs. luminance relations to our framework to create a new tone reproduction operator for black & white computer generated images. The new operator is shown to be a reasonable solution to the display range problem, and further extensions are suggested. en
dc.format.extent 26145755 bytes
dc.format.mimetype application/pdf
dc.identifier.uri http://hdl.handle.net/1853/3699
dc.language.iso en_US
dc.publisher Georgia Institute of Technology en
dc.relation.ispartofseries GVU Technical Report;GIT-GVU-91-13
dc.subject Computer imaging en
dc.subject Radiance en
dc.subject Tone reproduction en
dc.title Tone Reproduction for Realistic Computer Generated Images en
dc.type Text
dc.type.genre Technical Report
dspace.entity.type Publication
local.contributor.corporatename GVU Center
local.relation.ispartofseries GVU Technical Report Series
relation.isOrgUnitOfPublication d5666874-cf8d-45f6-8017-3781c955500f
relation.isSeriesOfPublication a13d1649-8f8b-4a59-9dec-d602fa26bc32
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