MIPST-04 Histogram-Based Locality-Preserving Contrast Enhancement

Histogram equalization (HE), a simple contrast enhancement (CE) method, tends to show excessive enhancement and gives unnatural artifacts on images with high peaks in their histograms. Histogram-based CE methods have been proposed in order to overcome the drawback of HE, however, they do not always give good enhancement results. In this letter, a histogram-based locality-preserving CE method is proposed. The proposed method is formulated as an optimization problem to preserve localities of the histogram for performing image CE. The locality-preserving property makes the histogram shape of the enhanced image to be similar to that of the original image. Experimental results show that the proposed histogram-based method gives output images with graceful CE on which existing methods give unnatural results.

  • Project Category : IEEE Projects
  • Project Year : 2015-2016
  • Department
  • B.E(Computer Science) , B.E(Electrical and Electronics Engg), B.E(Electronics and Communication), B.E(Information Technology), B.Tech, M.E(SOFTWATE ENGG), M.SC(SOFTWARE ENGG), M.Tech,
  • Domain
  • Digital Image Processing, MATLAB Projects,
  • Technology
  • matlab,
  • Avilable city
  • Chennai, Davangere, Pondicherry, Thanjavur,

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