International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 27 - Number 6 |
Year of Publication: 2011 |
Authors: Bijith Marakarkandy, Dr. B K Mishra |
10.5120/3304-4524 |
Bijith Marakarkandy, Dr. B K Mishra . A Comparative Study of the Performance of Wavelet Decomposition of Images using Kekre’s Transform vis-a-vis Haar and Daubechies. International Journal of Computer Applications. 27, 6 ( August 2011), 28-33. DOI=10.5120/3304-4524
In recent years Image and Signal compression have been receiving a lot of attention by scientists and researchers in order to improve storage and transmission capabilities. In this study we have compared the performance of Kekre’s wavelet with other wavelets viz. Haar and Daubechies 2 with respect to energy in the Low-Low (LL ), Low-High (LH) ,High-Low (HL) and High-High (HH) bands. The energy distribution in each band is an indicator of the performance of the transform for image compression. It is found that the percentage of energy in the low-low band is equal for Kekre’s and Haar wavelet. The daubechies 2 wavelet although offers a slightly higher energy compaction but the tradeoff is that the order of the filter being higher and therefore computational burden increases.