The purpose of this study is to compare between the to methods which is JPEG and JPEG2000 that are using in lossless image compression .

阐述了JPEG2000的发展历程及组成结构、 JPEG2000 Part 1 的图像压缩过程及相应技术，并对JPEG2000标准最新的四个部分做了简要介绍。-In this paper , the development and organization of JPEG2000 standard,theprocess , fundamental theories and involved technologies of image compression in JPEG2000 Part