Adaptive histogram equalization based on modified probability density function and expected value of image intensity

  • C. K. Sirajuddeen
  • Shubhi KansalEmail author
  • Rajiv Kumar Tripathi
Original Paper


Most of the adaptive histogram equalization methods enhanced the image locally instead of global enhancement. In this paper, a global enhancement method is proposed which is based on modified probability density function and expected value of image intensity. Adaptiveness is introduced here in the form of expected value of image intensity. This method can be very well utilized in all the display devices. The proposed method is compared with the state-of the-art other contrast enhancement techniques. Experimental results show that the proposed method surpasses the other techniques both quantitatively and qualitatively.


Clipping Modification Transformation function 



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Copyright information

© Springer-Verlag London Ltd., part of Springer Nature 2019

Authors and Affiliations

  1. 1.National Institute of Technology, DelhiNew DelhiIndia

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