Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Adaptive Image Enhancement in the DCT Compression Domain Using Retinex Theory

Retinex 이론을 이용한 DCT 압축 영역에서의 적응 영상 향상

  • Jeon, Seon-Dong (Department of Electronic Engineering, Industry Kumoh National Institute of Technology) ;
  • Kim, Sang-Hee (Department of Electronic Engineering, Industry Kumoh National Institute of Technology)
  • 전선동 (금오공과대학교 전자공학과) ;
  • 김상희 (금오공과대학교 전자공학과)
  • Published : 2008.06.18
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Abstract

This paper presents a method of adaptive image enhancement with dynamic range compression and contrast enhancement. The dynamic range compression is to adaptively enhance the dark area using illumination component of DCT compression block. The contrast enhancement is to modify the image contrast using retinex theory that uses the HVS properties. The block artifacts and other noises, caused by processing in the compression domain, were removed by after processing.

Keywords