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一个计算多边形面积和周长的程序, 同时可以把多边形显示出来, 直观展现多边形形状.(A polygon area and perimeter calculation procedures, the polygons can be displayed simultaneously, intuitive show polygonal shape.)

用扩散滤波实现图像增强，包括高斯滤波预处理，梯度计算，结构张量计算，扩散张量计算，数值离散以及增强效果评估代码(Diffusion-image enhencement)

hog完整代码，图像处理方面，得到灰度分布直方图(Hog complete code, image processing, get gray distribution histogram)

说明：  这是一个包括bmp文件显示，图像二值化，细线化等集合的程序，可在tc中运行。 程序中有40 +的注释，你能很快的看懂程序(This is a bmp file, including display, image binarization, thinning and other collection procedures, can be run in the tc. 40 + program notes, you can quickly understand procedures)

一个改进的自适应canny算法，该方法采用改进的开关型中值滤波器对图像做去噪工作，再把整幅图像分割为若干子图像，最后在充分考虑全局以及各子图像的边缘梯度信息后，自适应地生成动态阈值。(The new Canny adaptive method divides image into sub-images,then determinates the thresholds automatically according to the whole image edge information and the sub-images edge information.)

针对分水岭算法存在的过分割问题以及VCH-F1切片图像的特点，提出一种能够有效消除局部极小值和噪声干扰的自动分割方法。首先比较彩色分量梯度图，选择分量图像的梯度信息，达到有效提取图像边缘信息的目的；然后提出基于多阈值分割的方法消除无效梯度信息；最后介绍了算法的步骤及结果。实验结果证明，通过该方法处理的梯度图像再进行分水岭算法处理，即使不进行区域合并也能达到很好的效果。(Watershed algorithm for over-segmentation problem of the existence of VCH-F1 as well as the characteristics of the image slice, a can effectively eliminate the local minimum value and noise automatic segmentation method. Comparing the first color component gradient map, select the quantity of image gradient information, achieve an effective extraction of image edge information purposes then made based on multi-threshold segmentation method to eliminate invalid gradient information Finally introduce the steps of the algorithm and results. Experimental results show that the adoption of the method of treatment of gradient watershed algorithm for image re-treatment, even if there is no regional merger will also achieve good results.)

ostu与鱼群算法相结合，并且用matlab实现(ostu algorithm combined with the fish, and using matlab)

马尔科夫蒙特卡罗的matlab实现程序。上传分享，希望可以借鉴他人更好的。(Monte Carlo matlab procedures. Upload and share the hope that we can learn from others better)

国外高手编写的RANSAC算法工具箱，可以对二维和三维数据进行评估，内附例子。(Prepared by foreign experts RANSAC algorithm toolbox, can be two-dimensional and three-dimensional data to assess the attached example.)

一个很好的PCA程序。它可用于数据的降维，消噪及特征提取。(A good PCA procedures. It can be used for data dimensionality reduction, de-noising and feature extraction.)