Journal of the Institute of Electronics Engineers of Korea SP (대한전자공학회논문지SP)

The Institute of Electronics and Information Engineers (대한전자공학회)
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A Study on Real Time Color Gamut Mapping Using Tetrahedral Interpolation

사면체 보간을 이용한 실시간 색역 사상에 관한 연구

  • Kim, Kyoung-Seok (Dept. of Electronic Engineering, Sejong University) ;
  • Kwon, Do-Hyung (Dept. of Electronic Engineering, Sejong University) ;
  • Lee, Hak-Sung (Dept. of Electronic Engineering, Sejong University) ;
  • Han, Dong-Il (Dept. of Computer Engineering, Sejong University)
  • 김경석 (세종대학교 전자공학과) ;
  • 권도형 (세종대학교 전자공학과) ;
  • 이학성 (세종대학교 전자공학과) ;
  • 한동일 (세종대학교 컴퓨터공학과)
  • Published : 2007.01.25
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Abstract

A color gamut mapping has been known to be one of promising methods to enhance display quality of various types of color display device. However, it is required to handle this mapping in real time for display or digital TV application. If carefully arranged, the tetrahedral interpolation can be computed with simpler operations compared to a cubic interpolation in the conventional reduced resolution look-up table which is devised to process the gamut mapping in real time. Based on the tetrahedral interpolation, a new type hardware architecture for real-time gamut mapping is proposed in this paper. The proposed hardware architecture shows better processing speed and reduces the hardware cost.

색역 사상은 다양한 컬러 디스플레이 장치에서 출력되는 영상의 색재현성을 향상시키기 위한 방법으로 제안되었으며 Digital TV 또는 디스플레이 장치와 같이 고속의 영상 신호 처리가 요구되는 경우 색역 사상 또한 고속 실시간으로 처리하기 위한 방법이 요구된다. 기존의 실시간 색역 사상 방식에 사용되는 육면체 보간에 비해 사면체 보간이 좀 더 간단한 형태의 보간 연산이 가능하다. 본 논문에서는 이러한 사면체 보간 기법의 장점을 활용하여 고속 실시간 색역 사상을 위한 하드웨어 구조를 제안한다. 제안된 하드웨어 구조는 색역 사상의 처리 속도 향상시키고, 하드웨어 비용을 감소시키는 장점이 있다.

Keywords

References

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