Enhancement of Hyperspectral Real World Images Using Hybrid Domain Approach

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Shyam Lal 1,* Rahul Kumar 1

1. ECE Department, Moradabad Institute of Technology, Moradabad (U.P.), India

* Corresponding author.

DOI: https://doi.org/10.5815/ijigsp.2013.05.04

Received: 3 Jan. 2013 / Revised: 30 Jan. 2013 / Accepted: 6 Mar. 2013 / Published: 28 Apr. 2013

Index Terms

Contrast enhancement, Hyperspectral real world image, Image processing, Adaptive filtering


This paper presents enhancement of hyperspectral real world images using hybrid domain approach. The proposed method consists of three phases: In first phase the discrete wavelet transform is applied and approximation coefficient is selected. In second phase approximation coefficient of discrete wavelet transform of image is process by automatic contrast adjustment technique and in third phase it takes logarithmic of output of second phase and after that adaptive filtering is applied for image enhancement in frequency domain. To judge the superiority of proposed method the image quality parameters such as measure of enhancement (EME) and measure of enhancement factor (EMF) is evaluated. Therefore, a better value of EME and EMF implies that the visual quality of the enhanced image is good. Simulation results indicates that proposed method provides better results as compared to other state-of-art contrast enhancement algorithms for hyperspectral real world images. The proposed method is efficient and very effective method for contrast enhancement of hyperspectral real world images. This method can also be used in different applications where images are suffering from different contrast problems.

Cite This Paper

Shyam Lal,Rahul Kumar,"Enhancement of Hyperspectral Real World Images Using Hybrid Domain Approach", IJIGSP, vol.5, no.5, pp.29-39, 2013. DOI: 10.5815/ijigsp.2013.05.04


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