Automatic Estimation and Removal of Noise from a Single Image

  title={Automatic Estimation and Removal of Noise from a Single Image},
  author={Ce Liu and Richard Szeliski and Sing Bing Kang and C. Lawrence Zitnick and William T. Freeman},
  journal={IEEE Transactions on Pattern Analysis and Machine Intelligence},
Image denoising algorithms often assume an additive white Gaussian noise (AWGN) process that is independent of the actual RGB values. Such approaches cannot effectively remove color noise produced by today's CCD digital camera. In this paper, we propose a unified framework for two tasks: automatic estimation and removal of color noise from a single image using piecewise smooth image models. We introduce the noise level function (NLF), which is a continuous function describing the noise level as… CONTINUE READING
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