编写二维傅立叶变换的C语言程序及相应的显示程序 建立输入图象，在64*64的黑色图象矩阵的中心建立16*16的白色矩形图象点阵，形成图象文件（共4096字节） 对输入图象进行变换，将原始图象及变换图象都显示于屏幕上-The preparation of two-dimensional Fourier transform of C language program and the corresponding display program　establish the input image, the image to establish the white rectangle 16* 16 dot matrix at the center of the black image of 64* 64 matrix, forming an image file (of 4096 byte)　transforming an input image, the original image and converted image are displayed on the screen