Title :
A real time color correction circuit based on 2-dimensional chromaticity region separation
Author :
Oh, Chae Gon ; Lee, Seong Deok ; Kim, Chang Yeong ; Bae, Kwang Seog ; Kim, Yong Serk ; Kim, Jin Goo ; Hong, Chang Wan ; Moon, Kyung Ho ; Kim, Chun Soo ; Chung, Yunmo
Author_Institution :
Dept. of Electron. Eng., Kyung Hee Univ., Seoul, South Korea
fDate :
8/1/1997 12:00:00 AM
Abstract :
In general, the reproduced colors on a TV screen are not exactly the same as the colors of the original images transmitted from a TV station because color signals are distorted due to internal and external factors of a TV system. In this paper, we have developed a real time color correction circuit using a colorimetric color processing technique, which is based on 2-dimensional chromaticity region separation. In addition, a preference color processing technique is also used. This circuit has been modeled in VHDL, implemented in an 130,000 gate chip, and applied to TV systems
Keywords :
colorimetry; digital signal processing chips; hardware description languages; image colour analysis; image segmentation; real-time systems; television broadcasting; television equipment; video signal processing; 2-dimensional chromaticity region separation; TV screen; TV systems; VHDL; color signal distortion; colorimetric color processing technique; external factors; internal factors; preference color processing technique; real time color correction circuit; reproduced colors; Application specific integrated circuits; Broadcast technology; Cathode ray tubes; Color; Displays; Nonlinear distortion; Real time systems; Satellite broadcasting; Signal processing; TV broadcasting;
Journal_Title :
Consumer Electronics, IEEE Transactions on
