赞
踩
:github项目地址
https://github.com/AeneonLXC/Hikvision_Drive_OpenCV
基础环境
Name | Parameter |
---|---|
操作系统 | Ubuntu20.04 x86_64 |
工业相机 | 海康威视MV-CA016-10UC |
OpenCV | 4.7.0 |
GCC | 9.4.0 |
项目目录
Name | Parameter |
---|---|
使用VScode作为IDE,需要配置c_cpp_properties.json、tasks.json、launch.json,项目里面已经存放,更改相关的项目路径即可。前提是已经安装好以上的环境,VScode需要安装好C/C++的插件。至于OpenCV的坑,我只能说加油O.o?
{ "configurations": [ { "name": "Linux", "includePath": [ "${workspaceFolder}/**", "/usr/local/include/opencv4" /* 更换为自己的OpenCV安装路径*/ ], "defines": [], "compilerPath": "/usr/bin/gcc", "cStandard": "c17", "cppStandard": "gnu++14", "intelliSenseMode": "linux-gcc-x64" } ], "version": 4 }
除了海康Vision的lib库需要更换为自己的路径之外,OpenCV如果默认安装在**/usr/local/**就不需要更换,X11的lib库加进来的原因是因为一直无法正常的读取x11和pthread的的动态链接库,
{ "tasks": [ { "type": "cppbuild", "label": "C/C++: g++ build active file", /* 与launch.json文件里的preLaunchTask的内容保持一致 */ "command": "/usr/bin/g++", "args": [ "-std=c++11", "-g", //"${file}", /* 编译单个文件 */ "${fileDirname}/*.cpp", /* 编译多个文件 */ "-o", "${fileDirname}/${fileBasenameNoExtension}", /* 输出文件路径 */ /* 项目所需的头文件路径 */ "-I","${workspaceFolder}/", "-I","/usr/local/include/", "-I","/usr/local/include/opencv4/", "-I","/usr/local/opencv4/opencv2", /* 项目所需的库文件路径 */ "-L", "/usr/local/lib/", "-I", "/home/pc/sdtudy_makefile/include", /* OpenCV的lib库 */ "/usr/local/lib/libopencv_*", /* 海康Vision的lib库 */ "-L","/home/[your_hostname]/[yourpath]/lib/64", /* [your_hostname]更换为自己的主机名 [yourpath]更换为自己的路径*/ "/home/[your_hostname]/[yourpath]/lib/64/*", /* X11的lib库 */ "-L","/usr/lib/x86_64-linux-gnu", "/usr/lib/x86_64-linux-gnu/libX11.so", "/usr/lib/x86_64-linux-gnu/libpthread.so", ], "options": { "cwd": "${fileDirname}" }, "problemMatcher": [ "$gcc" ], "group": { "kind": "build", "isDefault": true }, "detail": "Task generated by Debugger." } ], "version": "2.0.0" }
{ "version": "0.2.0", "configurations": [ { "name": "g++ - Build and debug active file", "type": "cppdbg", "request": "launch", "program": "${fileDirname}/${fileBasenameNoExtension}", //程序文件路径 "args": [], //程序运行需传入的参数 "stopAtEntry": false, "cwd": "${fileDirname}", "environment": [], "externalConsole": true, //运行时是否显示控制台窗口 "MIMode": "gdb", "setupCommands": [ { "description": "Enable pretty-printing for gdb", "text": "-enable-pretty-printing", "ignoreFailures": true } ], "preLaunchTask": "C/C++: g++ build active file", "miDebuggerPath": "/usr/bin/gdb" } ] }
工业相机采集图像需要经过查找设备、创建句柄、开启设备、开启取流、关闭取流、关闭设备、销毁句柄七个流程,我们使用OpenCV采集图像也主要是在取流的过程中采集。此例程为test.cpp,是根据ImageProcess.cpp 例程修改的,原始例程在安装相机驱动之后存放在Samples里面的,自行查看,以下的讲解也是以注释为主,仔细阅读代码逻辑。
// 开始取流 // start grab image nRet = MV_CC_StartGrabbing(handle); if (MV_OK != nRet) { printf("MV_CC_StartGrabbing fail! nRet [%x]\n", nRet); break; } MV_FRAME_OUT_INFO_EX stImageInfo = {0}; memset(&stImageInfo, 0, sizeof(MV_FRAME_OUT_INFO_EX)); pData = (unsigned char *)malloc(sizeof(unsigned char) * stParam.nCurValue); if (NULL == pData) { break; } cv::Mat frame,image; // 创建Mat unsigned int nDataSize = stParam.nCurValue; nRet = MV_CC_GetOneFrameTimeout(handle, pData, nDataSize, &stImageInfo, 1000);//这里为什么要事先取出一帧图像,要提供stImageInfo给pDataForRGB,所有先取出一帧图像,后面直接在循环里面连续取帧数据。 if (MV_OK != nRet) { break; } pDataForRGB = (unsigned char*)malloc(stImageInfo.nWidth * stImageInfo.nHeight * 4 + 2048);//切勿放在循环里面,会内存泄露 if (NULL == pDataForRGB) { break; } while(1){ // MV_CC_GetOneFrameTimeout函数可以获取到原始图像的数据,该接口主动获取帧数据,较为平稳 //切记所有的采集图像必须要先开启MV_CC_StartGrabbing取流 并且如果使用采用接口获取图像数据,就不要使用MV_CC_Display(有些接口应该可以使用,没试过) nRet = MV_CC_GetOneFrameTimeout(handle, pData, nDataSize, &stImageInfo, 1000); if (nRet == MV_OK) { //printf("Now you GetOneFrame, Width[%d], Height[%d], nFrameNum[%d]\n\n", //stImageInfo.nWidth, stImageInfo.nHeight, stImageInfo.nFrameNum); // 像素格式转换 // convert pixel format MV_CC_PIXEL_CONVERT_PARAM stConvertParam = {0}; // 从上到下依次是:图像宽,图像高,输入数据缓存,输入数据大小,源像素格式, // 目标像素格式,输出数据缓存,提供的输出缓冲区大小 // Top to bottom are:image width, image height, input data buffer, input data size, source pixel format, // destination pixel format, output data buffer, provided output buffer size stConvertParam.nWidth = stImageInfo.nWidth; stConvertParam.nHeight = stImageInfo.nHeight; stConvertParam.pSrcData = pData; stConvertParam.nSrcDataLen = stImageInfo.nFrameLen; stConvertParam.enSrcPixelType = stImageInfo.enPixelType; stConvertParam.enDstPixelType = PixelType_Gvsp_RGB8_Packed; stConvertParam.pDstBuffer = pDataForRGB; stConvertParam.nDstBufferSize = stImageInfo.nWidth * stImageInfo.nHeight * 4 + 2048; nRet = MV_CC_ConvertPixelType(handle, &stConvertParam); if (MV_OK != nRet) { printf("MV_CC_ConvertPixelType fail! nRet [%x]\n", nRet); break; } image = cv::Mat(cv::Size(stImageInfo.nWidth, stImageInfo.nHeight), CV_8UC3, pDataForRGB); // 将取出来的帧数据转化为Mat类型 cv::cvtColor(image, frame, cv::COLOR_RGB2BGR); // 取出来的数据是RGB格式的,但OpenCV的显示是BGR,使用cvtColor转化图像数据格式 cv::imshow("frame", frame); // 按下ESC键退出循环 int keyCode = cv::waitKey(30); if (keyCode == 27) { break; } cv::destroyWindow; cv::destroyAllWindows; } else { printf("No data[%x]\n", nRet); } } // 停止取流 // end grab image nRet = MV_CC_StopGrabbing(handle); if (MV_OK != nRet) { printf("MV_CC_StopGrabbing fail! nRet [%x]\n", nRet); break; }
Ubuntu 20.04源码编译安装OpenCV 4.7.0_/usr/bin/ld: /home/ubuntu/miniconda3/envs/torch_ts-CSDN博客
MachineVisionCamera SDK(C)DeveloperGuide_V3.1.0(海康相机驱动之后安装自带的开发手册)
Copyright © 2003-2013 www.wpsshop.cn 版权所有,并保留所有权利。