DocumentCode :
2693835
Title :
Image characteristic oriented tone mapping for high dynamic range images
Author :
Liu, Chun Hung ; Au, Oscar C. ; Wong, P.H.W. ; Kung, M.C.
Author_Institution :
Dept. of Electron. & Comput. Eng., Hong Kong Univ. of Sci. & Technol., Hong Kong
fYear :
2008
fDate :
June 23 2008-April 26 2008
Firstpage :
1133
Lastpage :
1136
Abstract :
This paper presents a novel and efficient tone mapping algorithm for converting high dynamic range (HDR) images back to low dynamic range (LDR) images for displaying purpose because of the limited contrast ratio of common displays and printers. As the ratio between the maximum and minimum values of common HDR images is always very large and also the population usually deflects to one side, for convenient processing, most researchers first take the logarithm on the luminance layer or use another adaptive mapping to shorter the range of the distribution in their tone mapping methods. However, these mappings have already distorted the original imagespsila characteristics. In this paper, there is no such adverse mapping applied on the luminance layer in the proposed tone mapping algorithm. The paper does produce a tone reproduction curve to convert HDR images to LDR images. Adaptive techniques are also manipulated to provide better visual quality. The whole process is automatic and no parameter is required for manual input. The result will be a superior visual quality tone mapped LDR image with original HDR imagepsilas characteristics.
Keywords :
distortion; image resolution; adaptive mapping; adverse mapping; high dynamic range images; image characteristic oriented tone mapping; low dynamic range images; tone mapping algorithm; tone reproduction curve; visual quality; Cameras; Computer displays; Dynamic range; Gold; Image converters; Image generation; Layout; Liquid crystal displays; Printers; Sun; Tone mapping; contrast ratio; high dynamic range; low dynamic range;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Multimedia and Expo, 2008 IEEE International Conference on
Conference_Location :
Hannover
Print_ISBN :
978-1-4244-2570-9
Electronic_ISBN :
978-1-4244-2571-6
Type :
conf
DOI :
10.1109/ICME.2008.4607639
Filename :
4607639
Link To Document :
بازگشت