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free image to be used freely

PCB板检测的大概流程如下：首先存储一个标准PCB板图像作为参考标准，然后将待检测的PCB板图像进行处理，比较与标准PCB图像的差异。根据差异的情况来判断缺陷类型。(The approximate process of PCB board detection is as follows: first, a standard PCB board image is stored as a reference standard, and then the PCB board image to be detected is processed to compare the difference between the standard PCB image and the standard image. The type of defect is judged according to the difference.)

下载后自己看吧,就是一个角点检测代码。 基于c++ 64位 需要加载opencv3以上的版本(Download your own look, it is a corner detection code. Based on c++ 64 You need to load more than opencv3 version)

现有大屏拼接技术性能参数对比，这是我上个月的调研内容，数据可信，对于要了解大屏拼接技术的人一定有帮助(Existing large-screen display technical performance parameters comparison, this is my last month s survey content, data credibility, for large-screen technology to understand who must have help)

matlab彩色图像任意旋转的函数 黑白图像旋转后需要补点(matlab color images of arbitrary spin rotation function of black and white images make up points after)

开发 API人脸检测实例教程，应用程序编程源码，很好的参考资料。(Tutorial examples of the development of API face detection, application programming source code, a good reference.)

通过使用LLE PCA两种方法相结合的思路，提高人脸识别的分别率(LLE PCA by using the idea of combining two methods to improve face recognition rate difference)

说明：  基于CV模型的自动分割,能够对灰度图分割操作(image segmentation Level set Chan-Vase)

基于FFT以及次谐波的两种相位屏仿真方法源程序；主函数用于显示相位屏的二维和三维图像(FFT-based and subharmonic two phase screen simulation method source program; the main function is used to display two-dimensional and three-dimensional images of the phase screen.)

说明：  最近一直在看matlab仿真WSN的资料，今天找到一个仿真LEACH协议的。其主要是为了仿真他自己提出来的分簇协议，并给出了matlab代码，同时给出leach的代码。有兴趣的可以研究一下leach 协议和deec的协议对比(I've been looking at the MATLAB simulation WSN recently, and today I've found a simulation LEACH protocol. The main purpose is to simulate the clustering protocol proposed by himself, and give the matlab code, and give leach code at the same time. Interested can study the LEACH protocol and DEEC protocol comparison)