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Progressive pixel-to-pixel evaluation to obtain the hard and smooth region for image compression

Md Taujuddin, Nik Shahidah Afifi and Ibrahim, Rosziati and Sari, Suhaila (2015) Progressive pixel-to-pixel evaluation to obtain the hard and smooth region for image compression. In: 2015 6th International Conference on Intelligent Systems, Modelling and Simulation, 9-11 February 2015, Kuala Lumpur, Malaysia.

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In this paper, we propose a new image compression scheme that is based on the wavelet transform. The image is first divided into 64x64 pixels block. The progressive pixel-to-pixel evaluation is done to find the individual pixel intensity in each block. Then the different value between the maximum pixel intensity value and the minimum pixel intensity value is calculated. This value will lead to a special representation of each where the block with high diference value is set as the hard region block while the block with low difference value is set as the smooth region block. This region will be decomposed individually using Discrete Wvelet Transform (DWT) and tr=hresholded using different threshold method based on the block characteristics. The proposed method sows compression did well on image with a large smooth area

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: wavelet; thresholding; discrete wavelet transform (DWT)
Subjects: Q Science > QA Mathematics > QA75 Calculating machines > QA75.5 Electronic computers. Computer science
Divisions: Faculty of Electrical and Electronic Engineering > Department of Computer Engineering
Depositing User: Mrs. Nurhayati Ali
Date Deposited: 29 Mar 2015 06:31
Last Modified: 29 Mar 2015 06:31
URI: http://eprints.uthm.edu.my/id/eprint/6729
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