实现了图像处理常用的基本方法，包括直方图均衡，几何变换，空域滤波，2维快速傅里叶变换，图像复原，图像压缩，边缘检测等方法。-The image processing used to achieve the basic methods, including histogram equalization, geometric transformation, spatial filtering, two-dimensional fast Fourier transform, image restora