Image Quality Estimation by Entropy and Redundancy Calculation for Various Wavelet Families
Kumari Sarita, Ritu Vijay · JOURNAL OF INTERNATIONAL ACADEMY OF PHYSICAL SCIENCES · 2011
We implement image compression using various wavelet filter banks and measure performance with rate distortion characterizations.Various separable filter banks are chosen and compared. Coefficients in the subbands obtained by wavelet decomposition are quantized. The image is then reconstructed from the quantized coefficients, and distortion is measured. Three distortion measures are used: Entropy of reconstructed image, energy retained (ER) and redundancy.