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.
International Journal of Signal and Imaging Systems Engineering, 2011 Vol.4 No.4, pp.207 - 211
Available online: 30 Dec 2011 *Full-text access for editors Access for subscribers Purchase this article Comment on this article