Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/17831
Título: | A local model of eye adaptation for high dynamic range images |
Autor(es): | Ledda, Patrick Santos, Luís Paulo Chalmers, Alan |
Palavras-chave: | Human visual system Eye adaptation High dynamic range Tone mapping |
Data: | 2004 |
Editora: | Association for Computing Machinery (ACM) |
Resumo(s): | In the real world, the human eye is confronted with a wide range of luminances from bright sunshine to low night light. Our eyes cope with this vast range of intensities by adaptation; changing their sensitivity to be responsive at di erent illumination levels. This adaptation is highly localized, allowing us to see both dark and bright regions of a high dynamic range environment. In this paper we present a new model of eye adaptation based on physiological data. The model, which can be easily integrated into existing renderers, can function either as a static local tone mapping operator for single high dynamic range image, or as a temporal adaptation model taking into account time elapsed and intensity of preadaptation for a dynamic sequence. We nally validate our technique with a high dynamic range display and a psychophysical study. |
Tipo: | Artigo em ata de conferência |
URI: | https://hdl.handle.net/1822/17831 |
ISBN: | 1-58113-863-6 |
Versão da editora: | http://dl.acm.org/citation.cfm?doid=1029949.1029978 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | DI/CCTC - Artigos (papers) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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ledda_afrigraph.pdf | 3,85 MB | Adobe PDF | Ver/Abrir |