Saurabh Chaudhury

Work place: Department of Electrical Engineering, National Institute of Technology, Silchar, Assam, India



Research Interests: Image Processing, Computer systems and computational processes


Saurabh Chaudhury was born in 1971 and graduated from REC (now NIT) Silchar in Electrical Engineering in 1994 with Honours degree and subsequently obtained M.Tech and Ph.D from IIT Kharagpur, India in the field of Microelectronics & VLSI Design in 2001 and 2009 respectively. He is currently holding the position of Associate Professor, in the Department of Electrical Engineering, NIT Silchar. His area of interest includes, Low Power VLSI Design and Synthesis, leakage minimization, Digital Signal and Image Processing and Nanotechnology. He is a reviewer of many international conferences and journals including IEEE and program committee members of many international conferences.

Author Articles
Histogram Equalization-A Simple but Efficient Technique for Image Enhancement

By Saurabh Chaudhury Ananta Kumar Roy

DOI:, Pub. Date: 8 Aug. 2013

This paper demonstrates the significance of histogram processing of an image particularly the histogram equalization (HE). It is one of the widely used image enhancement technique. It has become a popular technique for contrast enhancement because the method is simple and effective. The basic idea of HE is to re-map the gray levels of an image. Here we propose two different techniques of Histogram Equalization namely, the global HE and local HE. The Histogram Equalization has been performed in the MATLAB environment. The merits and demerits of both techniques of Histogram Equalization have also been discussed. It is seen after exhaustive experimentation on a number of sample images that the proposed image enhancement techniques can be considered as an improvement over the inbuilt MATLAB function histeq.

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