Implementation Of Progressive Block Coder For Image Compression System Using QUAD-Tree Partitioning Approach
Deepali P. Ladhi · International Journal of Advanced Information Technology · 2012
This paper work describes the implementation of Discrete Wavelet Transform based progressive block coder using only quad-tree partitioning approach. The motivation behind this work is from SPECK (Set Partitioning Embedded bloCK) algorithm. It uses set partitioning and significance testing on hierarchical structures of transformed images in a recursive manner. The proposed method simplifies the complexity of the embedded wavelet image coding algorithm by combining both sorting pass and refinement pass. In comparison with other methods, this is simpler to be realized on hardware and has higher compression efficiency. The implementation is done by using TMS320C6713 DSK board. The statistical analysis is done with profile statistic available in Code Composer Studio (CCS) environment. The simulation results obtained in MATLAB environment show that PSNR values are quite improved by lowering threshold values .