PCA-SIFT

　针对一个匀速直线运动目标的跟踪设计最小二乘滤波器，了解跟踪滤波的基本方法以及参数估计方法的应用。(For a uniform linear least squares moving target tracking filter designed to learn the basic methods of tracking filter and parameter estimation method applied.)

说明：  对于一些图像来说，常用的边缘检测算法有时候无法设立合适的阈值将它们的梯度较小的模糊边缘检测出来。为了解决这个问题，有两种解决方法：将图像方差标准化，拉大模糊边缘的梯度值，或通过设置sigmoid函数，将像素所在区域的信息传递到梯度值中去，对其进行调整，就能找到合适阈值，有效地将模糊边缘提取出来。本程序把这两种算法实现并与与传统算法进行了比较。(For some images, the commonly used edge detection algorithm sometimes can not be an appropriate threshold for the gradient of their smaller fuzzy edge detected. To solve this problem, there are two solutions: the image variance standardization, widening the fuzzy edge of the gradient value, or by setting the sigmoid function pixel region to disseminate the message to the gradient values to adjust, on the can find a suitable threshold, effectively extracted fuzzy edge. This procedure of these two algorithms with the traditional algorithm.)

说明：  GVF snakes. 最近学习用到的code，可以帮助图像处理入门级的学生了解GVF snake的实现。(GVF snakes. Recent study used the code, image processing can help entry-level students to understand the realization of GVF snake.)

用vc实现图像选块的拖拽和融合,通过对窗口的拖动实现图像选块的拖拽,,(Using vc realize image selected block drag and fusion, by dragging the window to realize image choose a drag and drop,,)

这是一个鼠标特效的例子,非常的简单一看就知道了,希望能与您一块共享(This is a specific example of the mouse, very simple to see that this one, and would like to share with you a piece of)

说明：  usps数据库为标准手写数据库，此为mat数据文件，含训练集和测试(USPS database is a standard handwritten database, which is a mat data file, including training set and test)

对监控视频中的目标进行识别，提取背景信息(The target in the surveillance video is identified and background information is extracted)

实现对图像的任意形状的裁剪。注意：图像裁剪后带有背景色(Realization of arbitrary shape image cropping. Note: the image is cropped with a background color)

matlab实现的三维直方图统计。用来统计数据的三维直方图。可适用于任何三维数据的统计。(matlab code to deal with 3d hist.)

利用各种向量函数实现matlab中对于图像特征的识别(image recognition)