Abstract:

An optimization method of the encoding part of the JPEG2000 image compression algorithm based on a blackfin561 processor is presented,including some algorithm optimizations and a number of code optimizations such as loop unrolling,assembling of C program and assembly optimization.Time cost by the encoding module is greatly reduced and the real-time ability of encoding is obviously improved.

Key words: JPEG2000;image compression;blackfin561;encoding optimization