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A perceptual framework for contrast processing of high dynamic range images

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons44986

Mantiuk,  Rafal
Computer Graphics, MPI for Informatics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons45095

Myszkowski,  Karol
Computer Graphics, MPI for Informatics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons45449

Seidel,  Hans-Peter
Computer Graphics, MPI for Informatics, Max Planck Society;

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Zitation

Mantiuk, R., Myszkowski, K., & Seidel, H.-P. (2005). A perceptual framework for contrast processing of high dynamic range images. In APGV '05: Proceedings of the 2nd symposium on Appied perception in graphics and visualization (pp. 87-94). New York, USA: ACM.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-000F-25BB-F
Zusammenfassung
In this work we propose a framework for image processing in a visual response space, in which contrast values directly correlate with their visibility in an image. Our framework involves a transformation of an image from luminance space to a pyramid of low-pass contrast images and then to the visual response space. After modifying response values, the transformation can be reversed to produce the resulting image. To predict the visibility of suprathreshold contrast, we derive a transducer function for the full range of contrast levels that can be found in High Dynamic Range images. We show that a complex contrast compression operation, which preserves textures of small contrast, is reduced to a linear scaling in the proposed visual response space.