图像频率域的变换方法集合，含有fft,dct,wavlet等-Image Transform the frequency domain method pool, containing fft, Copy, etc. wavlet

一个数字图像处理源码，实现了jpeg，bmp，tiff，png，gif等多种图像格式的读取，边缘检测，fft变换，图像形态变化等功能-A source of digital image processing to achieve a jpeg, bmp, tiff, png, gif image formats such as read, edge detection, fft transform, image features such as morphological changes

数字图像处理，包括BMP灰度图像的参数计算，图像几何变换，FFT，IFFT，图像加躁，滤波编码等-Digital image processing, including BMP grayscale image parameter calculation, image geometric transformation, FFT, IFFT, image plus noise, filtering and coding

声音采集，波形显示，fft变换，频谱图等-Sound acquisition, waveform display, fft transform, spectrum, etc.