Implementation of JPEG-LS compression algorithm for real time applications

The LOCO-I / JPEG-LS algorithm aims at providing lossless compression ratios but with a much lower algorithm complexity. Official designation of JPEG-LS is ISO-14495-1/ITU-T.87. JPEG-LS is a simple and efficient algorithm that mainly consists of two stages modeling and encoding. Thus it divides the whole compression process in two phases of spatial pixel prediction and entropy coding and uses contexts in the first as well as the second phase. The algorithm uses a predictive technique and the resulting prediction error is encoded using Golomb-Rice coding. The proposed JPEG-LS Algorithm based on LOCO-I is implemented in MATLAB.