Title: An improved low complexity Near Lossless Image Compression

Authors: Mohit Kumar Gupta; Narendra D. Londhe

Addresses: Department of Electrical Engineering, National Institute of Technology (NIT) Raipur, Raipur 492010 (C.G.), India. ' Department of Electrical Engineering, National Institute of Technology (NIT) Raipur, Raipur 492010 (C.G.), India

Abstract: In this paper, a new improved low complexity compression methodology named as Near Lossless Image Compression (NLIC) has been suggested. This algorithm is a hybrid method which includes DCT, a lossy compression technique and JPEG encoding using entropy based Huffman coding, a lossless compression technique. The algorithm is tested with standard square images of sizes 512 × 512 and 1024 × 1024 respectively. The results of NLIC are also compared with the Huffman and Run length Encoding (RLE) for evaluating its compression efficiency.

Keywords: low complexity; image compression; DCT; discrete cosine transform; Huffman; NLIC; near lossless image compression; RLE; run length encoding.

DOI: 10.1504/IJSISE.2011.044534

International Journal of Signal and Imaging Systems Engineering, 2011 Vol.4 No.4, pp.207 - 211

Available online: 30 Dec 2011 *

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