ETRI Journal

Electronics and Telecommunications Research Institute (한국전자통신연구원)
권호 표지

A Low-Complexity and High-Quality Image Compression Method for Digital Cameras

  • Xie, Xiang (Department of Electronic Engineering, Tsinghua University) ;
  • Li, Guolin (Department of Electronic Engineering, Tsinghua University) ;
  • Wang, Zhihua (Department of Electronic Engineering, Tsinghua University)
  • Received : 2005.08.18
  • Published : 2006.04.30
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Abstract

This letter proposes a new near-lossless image compression method with only one line buffer cost for a digital camera with Bayer format image. For such format data, it can provide a low average compression rate (4.24bits/pixel) with high-image quality (larger than 46.37dB where the error of every pixel is less than two). The experimental results show that the near-lossless compression method has better performance than JPEG-LS (lossless) with ${\delta}$ = 2 for a Bayer format image.

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