kpcacsdn

类似PChunter的内核工具。本工具是应用层的源码。适合内核新手(Similar PChunter core tools. This tool is the source application layer. Suitable for novice kernel)

图像去雾算法质量评价标准：均值方差，峰值信噪比及平均梯度的源代码，还有引导滤波的完整源代码。(Image quality uation algorithm defogging criteria: mean and variance, the peak signal to noise ratio and average gradient of the source code, as well as guide the filter complete source code.)

2.编写两类正态分布模式的贝叶斯分类程序。 设以下模式类别具有正态概率密度函数： ω1：{(0 0)T, (2 0)T, (2 2)T, (0 2)T} ω2：{(4 4)T, (6 4)T, (6 6)T, (4 6)T} （1）设P(ω1)= P(ω2)=1/2，求这两类模式之间的贝叶斯判别界面的方程式。 （2）绘出判别界面。 3.已知服从正态分布的两类训练样本集分别为 ：，，，， ：，，， ，试问属于哪一类？ 4．设有两类一维模式，每一类都是正态分布，两类的均值和均方差分别为，；，。 采用（0-1）损失函数，且。 （1）试绘出两类模式的密度函数曲线，其判别界面位于何处？ （2）若已获得样本：-3，-2，1，3，5，试判断它们各属于哪一类。(bayes ，matlab)

该代码用于在视觉智能监控/视频监控/视觉监控/视频智能监控中，消除阴影。阴影消除对视频监控具有重要的意义，能够有效地降低阴影对目标检测的影响，减小误检率和漏检率，提高对目标的识别效率以及监控系统的稳定性和可靠性。(This code is used to remove shadow in visual intelligent surveillance/video surveillance/visual surveillance/video intelligent surveillance. Shadow removal plays a important role in video surveillance. It reduce the affection of shadow in object detection, decrease false detection rate and missing rate, and improve the stability and reliability of surveillance system.)

说明：  计算机图形学基本算法 DDA直线 中点直线 BRESEMHAM圆 正负法圆 B样条曲线 B曲线 (DDA line algorithm for computer graphics, the midpoint of the basic straight-line method BRESEMHAM circle round the positive and negative B-spline curve B curve)

说明：  实现目标检测的代码，有例程视频，可以运行(Achieve target detection code, there are routine video, you can run)

重力勘探 频率域重力延拓 二维傅里叶变换 源代码(Gravity Gravity exploration extension frequency domain two-dimensional Fourier Transform source code)

说明：  基于opencv的小面积区域的去除.可以去除面积小于指定面积的无兴趣区域.(Opencv-based small area of the region to remove. Can remove an area of less than the specified area is not interested in the region.)

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.)

画矩形的代码，包含各种算法，具体的自己看吧，这是图形处理的作业之一(Draw a rectangle of the code, contains a variety of algorithms, specifically for yourself, this is one of the graphics processing jobs)