Image Enhancement using Sorted Histogram Specification and POCS Postprocessing

  title={Image Enhancement using Sorted Histogram Specification and POCS Postprocessing},
  author={Il-Lyong Jung and Chang-Su Kim},
  journal={2007 IEEE International Conference on Image Processing},
  pages={I - 545-I - 548}
An image enhancement algorithm based on the sorted histogram equalization (SHE) and specification (SHS) is proposed in this work. Although SHE and SHS can generate an arbitrary output histogram exactly, they yield false contour artifacts and amplify noises in many cases. To reduce these artifacts, we propose a postprocessing scheme using the projection onto convex sets (POCS) theory. Specifically, the proposed algorithm iteratively processes the output images of SHE and SHS using the low-pass… CONTINUE READING


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