A Comparative Study on Adaptive and Non- Adaptive Lifting based Wavelet Image Compression using Awic Algorithm

Vol.3 No.3

Year: 2009

Issue: Jan-Mar

Title: A Comparative Study on Adaptive and Non- Adaptive Lifting based Wavelet Image Compression using Awic Algorithm   

Author Name: Chenchu Krishnaiah G, T. Jaya Chandra Prasad , Giri Prasad M.N   

Synopsis:   

The lifting scheme called second generation wavelets, can be designed to represent classical wavelets into lifting steps or to increase the number of vanishing moments of wavelets or to create different types of wavelets including adaptive and non-linear filters. The lifting scheme provides a new spatial intuition into the wavelet transform that simplifies the introduction of adaptivity. The adaptive transform is constructed based on adaptive prediction in a lifting scheme procedure. In this paper an attempt has been made to compare the proposed adaptive lifting scheme that works better than the Non- adaptive lifting scheme and its ability to achieve balance between image quality and computational complexity by using Adaptive Wavelet Image Compression (AWIC) algorithm. We demonstrate the power of our proposed adaptive lifting scheme with successful applications to image compression problems. Its application lossy compression is used to show the performance of the adaptive lifting scheme.