纸币图像采样程序源码，通过它可是更好的了解并学习图像识别的算法。该源码已与实机调试成功，经过略微改动后可以采集各种纸币图像、-NOTES image sampling program source code, through its better understanding and learn, but image recognition algorithms. The source code has been successful with the actual machine debuggi

FIR(Finite Impulse Response)滤波器：有限长单位冲激响应滤波器，又称为非递归型滤波器，是数字信号处理系统中最基本的元件，它可以在保证任意幅频特性的同时具有严格的线性相频特性，同时其单位抽样响应是有限长的，因而滤波器是稳定的系统。因此，FIR滤波器在通信、图像处理、模式识别等领域都有着广泛的应用。(FIR (Finite Impulse Response) Filter: Finite-length unit Impulse response filter, also k