ch3

采用VC++实现时钟的圆盘式显示，使用time_t time精确到秒。(using VC disc clock shown that the use time_t time precise to the second.)

MATLAB implementation for dense descriptor applied to wide baseline stereo DAISY

使用一个变量实现线性回归，以预测餐馆的利润。 使用梯度下降法，假设 h (x) 由线性模型给出 ，定义代价函数为 。线性回归的目标就是要最小化这个代价函数。(To get started with the exercise, you will need to download the starter code and unzip its contents to the directory where you wish to complete the exercise. If needed, use the cd command in Octave/MATLAB to change to this directory before starting this exercise.)

说明：  基于PNN变压器故障诊断概率神经网络的分类预测MATLAB源码(MATLAB source code for classification prediction based on PNN transformer fault diagnosis probabilistic neural network)

太极孔阵列的光头过率计算，有4*4的阵列组成，边界位upml pml(Tai Chi Kong array bald too rate, 4* 4 arrays, the boundary upml pml)

this matlab code for Image contrast enhancements of grey and rgb images.

MATLAB FOR FULL MIMO OFDM CODING

主要内容基于元胞自动机的地铁站紧急疏散仿真，利用matlab来编译出可视化人群疏散效果，得出疏散时间等结果。 (Based on Cellular Automata subway station evacuated)

一个师兄的毕设，BP神经网络的整个训练过程,真的是一个好程序，用于建立主成分分析模型，包含收发两个客户端的链路级通信程序,最大似然（ML）准则和最大后验概率（MAP）准则。

通过阈值去噪，最关键的就是要确定最佳阈值T 的大小.如果阈值太小，可以保留更多的小波系数，但同时噪声也被保留；相反，阈值太大，可以消除更多的噪声，但重要图像特征又将被滤掉，引起偏差.目前使用的阈值分为全局阈值和局部阈值.全局阈值对各层所有的小波系数或同一层内的小波系数都是统一的；局部阈值则是根据当前系数周围的局部情况来确定合适的阈值，具有灵活性.(Threshold denoising, the most critical is to determine the optimal threshold T s size. If the threshold is too small, you can retain more of the wavelet coefficients, but the noise was retained the contrary, the threshold is too large, can be eliminatedmore noise, but the important image features in turn be filtered out, causing bias current threshold is divided into a global threshold and local threshold. global Threshold the wavelet coefficients of all the wavelet coefficients of the layers or on the same floorare unity local threshold is based on the local situation of the current coefficient around to determine the appropriate threshold, with flexibility.)