edge

模数转换器AD0809例程，通过该例程可掌握AD0809的基本使用方法(AD0809 ADC routines, the routines can be mastered through the basics of using the AD0809)

PRE IN POST OREDER TRAVERSAL C++ CODE VISUAL

该系统为通讯录系统，实现了通讯录的管理功能，增删改通讯功能。通讯录查询工作是一个很复杂的问题，在实际的工作领域中，时常会遇到要修改通讯录的问题，例如修改、删除、添加、查找等都是应用过程中十分频繁的操作，如果有一个应用软件可以使这个操作简单而富有人性化，我们就可以通过界面上的提示语言来轻松准确地完成以上操作了。 本通讯录主要涉及函数的调用、指针、哈希表等主要技术。其中，函数的调用和哈希表是技术的重点。 (The system address book system, and the address book management features, additions and deletions to communication. Directory inquiries is a very complex issue, in the actual work areas, often face the problem to modify the address book, such as modify, delete, add, find the application process are all very frequent operation, if an application can make this simple and full of humane, we are prompted by the interface language to easily and accurately complete the above operation. The book mainly related function call, pointer, hash table and other major technologies. Among them, the function call and a hash table is the focus of technology.)

说明：  串口通信，也可实现虚拟串口通信。采用VS2015编程 MFC(Serial communication. It can also realize virtual serial communication.)

NPR_framework 3D model viewer.

关于给初学者介绍SDK编程( About gives the beginner to introduce SDK programs )

本书主要介绍了如何用API函数进行网络间通信(The book introduces how to use the API function communication networks)

EDLines是一种快速直线检测算子，2012年在ICCV上提出，也是目前处理直线检测最快的算法之一，该算法包含三个步骤：（1）边缘提取：利用Edge Drawing (ED)算法[28,29]从灰度图像中提取边缘片段；（2）线段检测：利用最小二乘法提取直线段；（3）线段确认：遵循Helmholtz定律，从已提取的直线段中摒弃虚假线段。EDLines算法的优越性得益于Edge Drawing (ED)算法能够从灰度图像中准确、快速、稳定地提取出光滑、完整的边缘片段。Edge Drawing (ED)算法包含以下步骤： （1）采用size=5*5,σ=1的高斯核对灰度图像进行平滑滤波，去除噪声； （2）采用一种常用的梯度算子，如Prewitt、Sobel或Scharr等计算平滑后图像中每个像素点的梯度幅度和梯度方向； （3）将梯度图中邻域内幅度最大的像素点标记为锚点，这些锚点成为图像边缘点(edge elements)的概率很大； （4）将相邻的锚点连接成边缘线。从一个锚点起始，ED利用相邻像素的梯度幅度和方向在梯度为最大值的锚点之间游走。 (Edge Drawing (ED) is our recently-proposed, novel, fast edge detection algorithm. What makes ED stand out the existing edge detectors, e.g., Canny, is the following: While the other edge detectors give out a binary edge image as output, where the etected edge pixels are usually independent, discontinuous entities ED produces a set of edge segments, which are clean, contiguous, i.e., connected, chains of edge pixels. Thus, while the output of the other edge detectors requires urther processing to generate potential object boundaries, which may not even be possible or result in inaccuracies ED not only produces perfectly connected object boundaries by default, but it also achieves this in blazing speed compared to other edge detector.)

说明：  Based on the stm32+mc20 gps positioning system, the 32 serial port control 20 sends the AT command and uploads it to the platform via http.