Color enhancement of TV picture using RGB sensor

Author

Lee, Eung-Joo ; Jeong, In-Gab ; Park, Yang-Woo ; Ha, Yeong-Ho ; Lee, Gwang-Choon

Author_Institution

Dept. of Electron. Eng., Kyungpook Nat. Univ., Taegu, South Korea

Volume

42

Issue

2

fYear

1996

fDate

5/1/1996 12:00:00 AM

Firstpage

182

Lastpage

191

Abstract

An object color can be seen differently under different ambient illumination, but the human visual system has color constancy with which the object color can be perceived constantly. When TV is watched under a certain outer illumination, the color on the CPT is somewhat distorted due to the emitting spectrum of outer illumination. In this paper, we suggest both intensity decision and illumination decision functions to consider the influence of illumination. Based on these functions, the color enhancement algorithm in a TV using an RGB sensor is also proposed. The TV of the proposed algorithm has better visual quality for the view point of the human visual system and reproduces enhanced color compared to conventional TV

Keywords

image colour analysis; image enhancement; optical sensors; television receivers; video signal processing; RGB sensor; TV picture; color constancy; color enhancement; emitting spectrum; illumination; illumination decision function; intensity decision function; object color; visual quality; Brightness; Circuits; Color; Humans; Lighting; Rendering (computer graphics); Sensor systems; Skin; TV; Visual system;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.494419

Filename

494419