An improved low complexity Near Lossless Image Compression. (3rd January 2012)

• Record Type: Journal Article
• Authors: Gupta, Mohit Kumar; Londhe, Narendra D.
• Is Part Of: International journal of signal and imaging systems engineering. Volume 4:Number 4(2011)
• Page Start: 207
• Page End: 211
• Publication Date: 2012-01-03
• Subjects: low complexity -- image compression -- DCT -- discrete cosine transform -- Huffman -- NLIC -- near lossless image compression -- RLE -- run length encoding; Signal processing -- Periodicals; Imaging systems -- Periodicals; Information theory -- Periodicals; 621.3822
• Languages: English
• ISSNs: 1748-0698

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.