edge-extraction

matlab图像处理代码，利用算法对点云数据进行直方图以及标准差统计，含M文件和GUI(matlab image processing code, the use of algorithms for point cloud data, histograms and standard deviation statistics, including documentation and GUI M)

总变分正则化超分辨率重建 包括两种范数形式的正则化(Total Variation Regularized super-resolution reconstruction, including two-norm in the form of regularization)

经过测试的基于sift程序的图像拼接。以lowe的程序为sift提取核心程序，此外还包括ransac算法，单应矩阵提取，图像融合（包括加权融合以及平均融合）算法，融合效果在testnew中可见。(Image mosaic based on sift program tested. The lowe program sift extract the core program, in addition to including ransac algorithm homography extract image fusion (including fusion weighted average fusion) algorithm, fusion effect is visible in testnew.)

实现肺实质初始分割及采用滚球法（形态学开运算）进行修补肺实质轮廓凹陷。(Achieve initial segmentation and the use of the pulmonary parenchyma ball method (morphological opening operation) to repair the lung parenchyma contour depression.)

关于利用迭代傅里叶转换算法来处理图像相位的恢复问题的一个程序。(About iterative Fourier transform algorithm is used to dealing with image recovery phase of a program.)

用matlab编写的进行椭圆检测的算法，用到Hough变换(Using matlab for ellipse detection algorithm, Hough transform is used)

可以看到圆心坐标和半径参数，在坐标中画出这个圆，编写画圆函数(You can see the center coordinates and the radius parameters, draw the circle in the coordinates, write the function to draw the circle)

可以用来计算MTF值，用matlab编写的，数据文件需要为Excel格式。(MTF can be used to calculate the value, using matlab prepared.)

说明：  使用matlab平台进行斜视角为0度的九点目标RD算法仿真(Simulation of nine point target Rd algorithm with 0 degree squint angle using MATLAB platform)

说明：  实现指纹识别中的指纹图像预处理中的方向场，细化等，含有一个GUI界面(pre-process of figure print image)