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Sadasivam, V.
- A Comparative Analysis of Adaptive Encoding Techniques for Multispectral Images
Abstract Views :336 |
PDF Views:4
Authors
S. Deepa
1,
V. Sadasivam
2
Affiliations
1 Department of Information Technology, National College of Engineering, Tirunelveli, IN
2 PSN College of Engineering, Melathediyoor, Tirunelveli, IN
1 Department of Information Technology, National College of Engineering, Tirunelveli, IN
2 PSN College of Engineering, Melathediyoor, Tirunelveli, IN
Source
Digital Image Processing, Vol 4, No 16 (2012), Pagination: 874-879Abstract
Multispectral images are images with high spatial, spectral and radiometric resolution. Efficient multispectral image compression plays a key role in most of the geographical applications. The three important phases involved in a adaptive technique are transformation, clustering and encoding based on the resultant clusters. The existing methods like SPIHT, STW, WDR, and ASWDR are used as the base for Adaptive encoding techniques. The methods adopted are the recent wavelet compression techniques adopted for high dimensional images. The paper proposes the adaptive encoding technique and different combination of encoding techniques are evaluated and an efficient technique (E –Ad) is identified by comparing the results using the metrics Peak Signal to Noise Ratio as well as Compression Ratio. The proposed compression technique preserves the unique spectral characteristics of the multispectral image. The compressed image, can be efficiently used as preprocessing for many enhancement techniques and for object classification mechanisms. The E-Ad technique overtakes many of the state of art algorithms.Keywords
ASWDR, E–Ad, SPIHT, STW, WDR.- A New Approach for Image Contrast Enhancement Using Morphological Filters
Abstract Views :227 |
PDF Views:3
Authors
Affiliations
1 Department of Computer Science and Engineering, M.E.T. Engineering College, Nagercoil, IN
2 Department of Computer Science and Engineering, Manonmaniam Sundaranar University, Tirunelveli, IN
1 Department of Computer Science and Engineering, M.E.T. Engineering College, Nagercoil, IN
2 Department of Computer Science and Engineering, Manonmaniam Sundaranar University, Tirunelveli, IN