这个程序实现了菲涅尔衍射计算，对各种图像都课进行衍射计算，也也是全息照片重现。-Implementation of this process the calculation of Fresnel diffraction of a variety of classes for the diffraction images are calculated, it is also a hologram to reproduce photographs.

Use of natural gradient algorithm, Several new methods sar image denoising, Calculation crosshairs diffraction image at different distances.