基于DSP的数字图像预处理算法优化方法

Optimization method of digital image preprocessing algorithm based on DSP

结合DSP并行处理的结构特征,研究了常见的数字图像预处理算法的共同特点,以及预处理算法的C语言级代码优化方法,包括设置编译选项、循环展开、减少循环嵌套、使用内联函数、使用关键字等。并对应用各种优化技术后的代码执行效率进行对比分析,结果表明优化后的代码执行效率有明显提高。

This paper studied common features of digital image preprocessing algorithms combined with structural features of DSP parallel processing, as well as their optimization methods by c languages, including setting compiler options, unrolling loops, reducing nested loops and using instrinsics or key words. The comparative analysis results show that execution efficiency was significantly increased after optimizing these code.