Gradients

说明：  数字全息的菲涅耳再现算法和角谱算法，包括频谱滤波。(Fresnel digital holographic reproduction algorithms and angular spectrum of algorithms, including spectral filtering.)

用vc编写的一个多边形变换程序(vc prepared using a polygon transformation process)

水平集最新算法，基于局部能量函数，并做了改进(level set new Algorithm, make some improve)

说明：  x射线的CT图像重建，内附data.mat为实际X射线拍到投影图像。(x-ray CT image reconstruction, the actual X-ray included data.mat photographed the projected image.)

利用分形和混沌理论，生成十分精美的2维图形。有多种参数可以对图形进行控制。(use fractal and chaos theory, generate very attractive two-dimensional graphics. A number of parameters can control graphics.)

周期T=5，脉宽tao=1的矩形脉冲及频谱图(cycle T = 5, pulse width = tao a rectangular pulse and the spectrum)

说明：  灰度图像分割，三维大津法或三维最大类间方差法(3D Maximum Between Cluster Variance)

说明：  几何偏微分方程方法应用于曲线演化的一个小程序，这里是一个matlab的源程序，不是十分复杂，显示了一个哑铃形状的曲线演化的过程(geometric partial differential equations method has been applied to the evolution of the curve of a small program here is a source of Matlab, is not very complex, and shows a dumbbell-shaped curve of the evolutionary process)

对像素点较少的原始图像进行二维插值，以提高图像的平滑度。()

说明：  对二维数据进行变分模态分解，可用于地震数据去噪等(Variational mode decomposition of two-dimensional data can be used for seismic data denoising, etc.)