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浮点DSP与定点DSP的取舍



 项目的需要时这样的:每秒输入dsp 25帧130像素的图像,需要对图像进行增强、线性滤波、直方图处理、图像分割等简单的操作,另外还需要进行一些浮点运算
  想问问各位大神,主频为300MHZ,运算速度为2400MIPS的浮点DSP在速度上能不能满足要求,与主频为500MHZ,运算速度为4000MIPS的定点DSP相比,哪个更合适,求大神给出具体的比较过程