Improved Adaptive Block Truncation Coding for Image Compression

Abstract

The Block Truncation Coding (BTC) is one of the lossy image compression algorithms.In this paper, we have proposed a method called the Improved Adaptive Block Truncation Coding (IABTC) based on Adaptive Block Truncation Coding (ABTC).The feature of inter-pixel redundancy is exploited to reduce the bit-rate further by retaining the quality of the reconstructed images.The proposed method outperforms the existing BTC based methods both in terms of bit-rate and PSNR values.