Image enhancement: A composite image approach using contourlet transform

Asmare , M.H. and Asirvadam , Vijanth Sagayan and Izhar , L.I. (2009) Image enhancement: A composite image approach using contourlet transform. In: 2009 International Conference on Electrical Engineering and Informatics, ICEEI 2009 , 5 August 2009 through 7 August 2009 , Selangor .

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Most existing image enhancement algorithms work on a single image. Their performance is limited by the capacity of the sensor by which the image is originally taken. In some cases they completely fail to provide us the necessary enhancements. Here we propose a composite image enhancement approach for enhancing still images. We combine the relevant features of the input images and produce a composite image which is rich in information content. The input images are first decomposed into multiple resolutions by using the contourlet transform which provides a better representation than the conventional wavelet transforms. Transformed coefficients are combined with a predefined fusion rules. The resultant image is found by performing inverse contourlet transformation of the composite image. The results found are encouraging and the algorithm does not introduce any artificial artefacts and distortion. © 2009 IEEE.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Composite images; Contourlet transform; Contourlets; Fusion rule; Image enhancement algorithm; Information contents; Input image; Multi-resolution wavelet transform; Multiple resolutions; Single images; Still images; Electrical engineering; Image enhancement; Mathematical transformations; Multiresolution analysis; Image fusion
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Departments / MOR / COE:Departments > Electrical & Electronic Engineering
ID Code:351
Deposited By: Dr Vijanth Sagayan Asirvadam
Deposited On:04 Mar 2010 09:18
Last Modified:19 Jan 2017 08:25

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