基于DSP和S-function的数字图象处理方法与实现

Method of Digital Image Processing Based on DSP and S-function and Its Implementation

文章以高性能数字信号处理器DM642为核心搭建了数字图象处理系统硬件平台,采用Matlab中的M文件S-function开发了用户自定义算法模块并建立了复杂图象处理算法的Simulink模型,实现了数字图象的高速处理,并以Canny边缘检测算法为例进行了实验。实验结果表明,在DSP平台中实现数字图象处理大大地提高了处理速度,采用S-function自定义算法模块大大地提高了编程效率。

The paper took high-performance DSP DM642 as core to build hardware platform of digital image processing system and used M file S-function in Matlab to develop user-difined algorithm module so as to build Simulink model of complex image processing algorithm, which realized high-speed processing for digital image. It took Canny brink algorithm as example to carry out experiment. The experiment result showed that the implementation of digital image processing in DSP platform could improve processing speed, using user-difined algorithm module of S-function could improve programme efficiency.