The Transactions of the Korea Information Processing Society (한국정보처리학회논문지)

Korea Information Processing Society (한국정보처리학회)
권호 표지

A Constrast Conatrol Method for Real-Time Processing

실시간 처리를 위한 콘트라스트 조정 기법

  • 조화현 (한양대학교 대학원 전자전기제어공학과) ;
  • 최철호 (한양대학교 대학원 전자전기제어공학과) ;
  • 권병헌 (유한대학 정보통신공학과) ;
  • 최명렬 (한양대학교 전자전기제어공학과)
  • Published : 2000.06.01
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, we have proposed the contrast control method for improving image quality. The proposed method can be easily applied to the FPD (flat panel display) which requires real-time processing because of its lower hardware complexity that the conventional methods. In addition, it can flexibly control the contrast of input image by arraying the weight values that control the contrast range. Visual test and standard deviation of their histograms have been introduced to evaluate the results of proposed method and the original images. The functional operation of he proposed method has been verified using the SYNOPSYS VHDL tool and computer simulation. Its results show that he proposed method might be very suitable for real-time processing on the FPD.

Keywords

References

  1. Y. Koo, et al , 'An Image Resolution Enhancing Technique Using Adaptive Sub-Pixel Interpolation for Digital Still Camera system,' IEEE Transaction on Consumer Electronics. Vol.45, No1, pp,118-122, 1999 https://doi.org/10.1109/30.754426
  2. Kim et al., 'Digital Signal Processor with Efficient RGB Interpolation and Histogram .Accumulation.' IEEE Transaction on Consumer Electronics, Vol.44, No.4. pp.1389-1395 1998 https://doi.org/10.1109/30.735842
  3. Markhuser, C P, 'NTSC Image Improvements using Basic Inter and Intra/Frame Signal processing,' IEEE Trans. on Consumer Electronics. Vol.CE-35, pp.836-871, 1989 https://doi.org/10.1109/30.106910
  4. Rafael G. Gonzales, 'Digital Image Processing,' Addison- Wesley, pp.161-249
  5. Randy Crane, Simplified Approach: to Image Processing, Prentice-Hall, pp.55-83, 1994
  6. M A. Sid-Ahmed, Image Processing, McGrawHiIl, pp.83-98, 1995
  7. Bernd Jahne, Digital Video Processing, SpringerVerlag, pp.77-94, 1993
  8. C. Choi, et al., 'An Image Processor for SXGA/ UXGA FPD,' AP-ASIC'99, pp.250-253, 1999 https://doi.org/10.1109/APASIC.1999.824076