Color image coding using a novel block based embedded technique

Abstract

In this paper, an efficient, low memory embedded wavelet based color image coding technique is presented. The proposed algorithm is a listless variant of improved color set partitioning embedded block coding (CSPECK) algorithm. The inter-dependency among color planes is exploited by using novel clustering arrangement of luminance and chrominance subbands. This facilitate to encode simultaneously inter and intra subbands of luminance and chrominance components located at the same spatial locations in a hierarchical wavelet arrangement. This technique shows a significant improvement of peak-signal-to-noise-ratio (PSNR) values in most of the standard color images and videos at lower bit rates. The memory requirement of the coder is reduced by almost 84% than CSPECK.