Development of a low complexity image compression engine on the stamp 2 module

Recently, adaptive decimation had been proven to be feasible in compressing images with good visual quality and at low bit-rate. The method had later been modified, through the use of look-up table, to reduce the computation loading so that it could be executed in real time on medium speed processors. A major disadvantage of this approach is the requirement of considerable quantity of RAM or ROM for recording the pre-computed data. In this paper, a novel scheme for overcoming this problem was reported. The revised method had enabled the adaptive decimation to be implemented in the stamp 2 module, a development kit which had been widely adopted by users of different disciplines in building simple control systems.