graymatrix

产生正弦信号，加入高斯白噪声，并用小波方法去噪(Produce sine signals, add white gaussian noise, and wavelet denoising method )

已知一个点到一条直线的距离，主要用在地图匹配中基于权重地图匹配算法中(Given a point to a straight line distance, mainly used in the map-matching weight based map-matching algorithm)

近景摄影DLT的L近似值的求解代码 此程序主要应用于桥梁挠度的测量中(The L approximation close range photogrammetry DLT solving code This program is mainly used in the bridge deflection measurement)

针对电气设备同一场景的红外与可见光图像间一致特征难以提取和匹配的问题，提出了一种基于斜率一致性的配准方法。首先通过数学形态学方法分别提取红外与可见光图像的边缘，得到粗边缘图像；然后通过SURF算法提取两幅边缘图像的特征点，根据正确的匹配点对之间斜率一致性的先验知识，进行特征点匹配；最后通过最小二乘法求得仿射变换模型参数并实现两幅图像的配准。实验结果表明，该方法有效提高了匹配点对的正确率，能够对电气设备红外和可见光图像实现高精度的配准。(In this paper, a method based on slope consistency is proposed to solve the problem that the uniform features of infrared and visible images are difficult to extract and match. Firstly, the edges of infrared and visible images were extracted by mathematical morphology, and the rough edge images were obtained. Then, the feature points of two edge images were extracted by SURF algorithm, and the priori knowledge of slope consistency was obtained according to the correct matching point, and the feature points were matched. Finally, the model parameters of affine transformation are obtained by least square method and the registration of two images is realized. The experimental results show that this method can effectively improve the accuracy of matching points, and can realize high precision registration of infrared and visible images of electrical equipment.)

说明：  一个简单的小程序，主要是转换测量卡尔曼滤波（CMKF）在三维空间上的matlab实现，并给出了xyz三个方向上的滤波误差(A simple program is mainly the realization of CMKF in three-dimensional space by MATLAB, and the filtering errors in three directions of XYZ are given)

说明：  一个较好效果的彩色图像合成代码(分左右两个视窗,点击左边的视窗后显示左图,选择操作后,点击右视窗,可看到各种不同合成操作的效果图)(a good result Color Image Synthesis code (around two windows, Click on the left side of the window shows the municipality, the choice of operation, click on the right window we can see various synthesis operating results))

内容认证半脆弱水印算法的研究与实现,本程序实现图像的半脆弱水印，是基于DCT的算法，特别适合研究半脆弱水印的同志(Content authentication semi-fragile watermarking algorithm for Research and Implementation of, the procedures for the realization of the semi-fragile watermarking images is based on the DCT algorithm, especially appropriate to study the semi-fragile watermarking comrades)

光线跟踪算法，能显示基本图形（球形，立方体，墙面），实现阴影，高光，反射，折射等效果(Ray tracing algorithm, can display basic graphics (sphere, cube, wall), to achieve shadows, light, reflection, refraction and other effects)

介绍了一种圆检测的方法，该方法，基于霍夫变换，并根据圆几何特征可以快速准确的提取出圆中心坐标(Introduction of a circle detection method, based on the Hough transform, and in accordance with the characteristics of circular geometry can be extracted quickly and accurately the circle center coordinates)

说明：  窗口界面使用KAYA SDK连接采集卡相机获取采集图像(use KAYA sdk connect with grabber and capture image data)