DocumentCode :
590627
Title :
High contrast tone-mapping and its application for two-layer High Dynamic Range coding
Author :
Jinno, Takao ; Watanabe, Hiromi ; Okuda, Masumi
Author_Institution :
Toyohashi Univ. of Technol., Toyohashi, Japan
fYear :
2012
fDate :
3-6 Dec. 2012
Firstpage :
1
Lastpage :
4
Abstract :
Many applications for High Dynamic Range (HDR) images require tone-mapping operations that preserve details in whole luminance range. This paper proposes a high contrast tone-mapping operator using a multi-scale contrast enhancement, and uses it for a high efficiency two-layer HDR coding. To visualize minute details, the high contrast tone-mapping operator often results in hard enhancement. In many conventional two-layer coding methods, it degrades compression efficiency. In contrast our method can achieve both of the high contrast and high compression efficiency. Moreover this paper can perform two types of tone-mapping which generates the images with strong enhancement and natural look. This paper shows the validity of our methods through some experimental results.
Keywords :
data compression; image coding; image colour analysis; image enhancement; HDR image; compression efficiency; high contrast tone-mapping operator; image enhancement; luminance range; multiscale contrast enhancement; two-layer HDR coding; two-layer high dynamic range coding; Bit rate; Decoding; Dynamic range; Encoding; Image coding; Laplace equations; Visualization;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Signal & Information Processing Association Annual Summit and Conference (APSIPA ASC), 2012 Asia-Pacific
Conference_Location :
Hollywood, CA
Print_ISBN :
978-1-4673-4863-8
Type :
conf
Filename :
6411774
Link To Document :
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