code

kalman 滤波，用于线性系统状态的估计(kalman filter, state estimation for linear systems)

猫脸变换用于水印中，将水印图像经过一定次数的变换得到不能识别的图像，增强了水印的鲁棒性(Cat face transform for watermarking, the watermark image after a certain number of times the transform of the image does not recognize and enhance the robustness)

分数阶系统的计算工具，解决一般解及动力学行为的问题(tools for solving fractional-order systems)

ROC曲线~在信号检测理论中,接收者操作特征(receiver operating characteristic),或者叫ROC曲线是一种对于灵敏度进行描述的功能图像.ROC曲线可以通过描述真阳性率(TPR)和假阳性率(FPR)来实现.由于是通过比较两个操作特征(TPR和FPR)作为标准,ROC曲线也叫做相关操作特征曲线(ROC curve ~ in signal detection theory, the receiver operating characteristics (receiver operating characteristic), or called the ROC curve is a function that describes the sensitivity of the image. ROC curve can describe the true positive rate (TPR) and false positive rate ( FPR) to achieve. because it is by comparing the two operating characteristics (TPR and FPR) as a standard, ROC curve is also called the relevant operating characteristic curve)

飞思科技《Matlab7基础与提高》书籍源码，希望对大家有用(Fly think technology "Matlab7 foundation and improve" books, the useful source code)

parzen window + fish linear discriminant analysis

张正友的Easycalib的程序没有提供源代码，这是matlab实现代码，大家试试！(Easycalib Friends of the procedures did not provide the source code, which is to achieve Matlab code, we try!)

Canny edge detection. It is an image processing algorithm for edg detection

Steerable高斯图像滤波器，非常不错 在国外网站上找到的，可以学习 (Steerable Gaussian filter images, very good abroad found on the site, we can learn from)

说明：  自编多尺度样本熵程序，实例中用于一段轴承故障数据，简单易懂。MultiscaleSampleEntropy函数中的SampleEntropy也可以单独拎出来计算单个样本熵。(Multi scale sample entropy is used for a section of bearing fault data, which is easy to understand. SampleEntropy in the MultiscaleSampleEntropy function can also be picked up separately to calculate the entropy of a single sample.)