数字信号C语言程序集，FFT、快速卷积、IIR数字滤波、图像旋转、增强、边缘检测、人工神经网络算法-Digital signal C assembly language, FFT, fast convolution, IIR digital filtering, image rotation, enhancement, edge detection, artificial neural network algorithm

标准C语言实现的一维和二维快速傅里叶变换代码，代码运行时不需要额外占用多余的内存空间，简单易用，具体可见代码说明。-FFT and 2 dimension FFT algorithm acommplished with ANSI C.It occupies the least memory space while running after embeded into you project.The source code is easy and brief,you can check the t