vs2010 opencv 不能播放视频？_course

这是书上的代码，编译能通过，就是视频不能播放？ 也安装了XviD-1.1.3-27042008. 我用的是vs2010, opencv2.4.10 #include<opencv2/opencv.hpp> #include<iostream> using namespace cv; int main() { cv::VideoCapture capture("D:\opencv\bike.avi"); if(!capture.isOpened()) { return 1; } double rate=capture.get(CV_CAP_PROP_FPS); bool stop(false); cv::Mat frame; cv::namedWindow("Extracted Frame"); int delay=1000/rate; while(!stop) { if(!capture.read(frame)) break; cv::imshow("Extracted Frame",frame); if(cv::waitKey(delay)>=0) stop=true; } capture.release(); cv::waitKey(0); system("pause"); return 0; } 输出结果是 “opencv2.exe”: 已加载“D:\opencv\opencv2\Debug\opencv2.exe”，已加载符号。 “opencv2.exe”: 已加载“C:\Windows\SysWOW64\ntdll.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\kernel32.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\KernelBase.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“D:\Program Files\opencv\build\x86\vc10\bin\opencv_core2410d.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\msvcp100d.dll”，已加载符号。 “opencv2.exe”: 已加载“C:\Windows\SysWOW64\msvcr100d.dll”，已加载符号。 “opencv2.exe”: 已加载“D:\Program Files\opencv\build\x86\vc10\bin\opencv_highgui2410d.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\user32.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\gdi32.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\lpk.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\usp10.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\msvcrt.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\advapi32.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\sechost.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\rpcrt4.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\sspicli.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\cryptbase.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\ole32.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\oleaut32.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_5.82.7601.18201_none_ec80f00e8593ece5\comctl32.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\avifil32.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\winmm.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\msacm32.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\msvfw32.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\shell32.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\shlwapi.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\avicap32.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\version.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\imm32.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\msctf.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\nvinit.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Program Files (x86)\NVIDIA Corporation\coprocmanager\detoured.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Program Files (x86)\NVIDIA Corporation\coprocmanager\Nvd3d9wrap.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\setupapi.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\cfgmgr32.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\devobj.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Program Files (x86)\NVIDIA Corporation\coprocmanager\nvdxgiwrap.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“D:\Program Files\opencv\build\x86\vc10\bin\opencv_ffmpeg2410.dll”，未使用调试信息生成二进制文件。 “opencv2.exe”: 已加载“C:\Windows\SysWOW64\ws2_32.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\nsi.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\uxtheme.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“D:\jinshan_weishi\ksafe\ksfmon.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\ProgramData\Tencent\TSVulFw\TSVulFW.DAT”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\psapi.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\clbcatq.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\apphelp.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\SogouPY.ime”，Cannot find or open the PDB file “opencv2.exe”: 已卸载“C:\Windows\SysWOW64\SogouPY.ime” “opencv2.exe”: 已加载“C:\Windows\SysWOW64\SogouPY.ime”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\msimg32.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\oleacc.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\ntmarta.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\Wldap32.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\dwmapi.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“D:\SogouInput\Components\PicFace\1.0.0.1403\PicFace.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“C:\Windows\SysWOW64\profapi.dll”，Cannot find or open the PDB file “opencv2.exe”: 已加载“D:\SogouInput\7.9.0.7504\Resource.dll”，未使用调试信息生成二进制文件。 线程 'Win32 线程' (0x14ec) 已退出，返回值为 0 (0x0)。 线程 'Win32 线程' (0x1770) 已退出，返回值为 -1073741510 (0xc000013a)。 线程 'Win32 线程' (0xe34) 已退出，返回值为 -1073741510 (0xc000013a)。 线程 'Win32 线程' (0xf88) 已退出，返回值为 -1073741510 (0xc000013a)。 线程 'Win32 线程' (0x10c) 已退出，返回值为 -1073741510 (0xc000013a)。 线程 'Win32 线程' (0x1664) 已退出，返回值为 -1073741510 (0xc000013a)。 程序“[5932] opencv2.exe: 本机”已退出，返回值为 -1073741510 (0xc000013a)。

vs2015 cmake编译opencv3.1+opencv_contrib报错_course

在OPENCV_EXTRA_MODULES_PATH，添加opencv_contrib目录后报错，求问是什么问题啊？ CMake Error at /Users/Documents/opencv/source/opencv-3.2.0/cmake/OpenCVUtils.cmake:1045 (file): file DOWNLOAD cannot open file for write. Call Stack (most recent call first): /Users/Documents/opencv/source/opencv_contrib-master/modules/dnn/cmake/OpenCVFindLibProtobuf.cmake:32 (ocv_download) /Users/Documents/opencv/source/opencv_contrib-master/modules/dnn/CMakeLists.txt:5 (include) CMake Error at /Users/Documents/opencv/source/opencv-3.2.0/cmake/OpenCVUtils.cmake:1049 (message): Failed to download . Status= Call Stack (most recent call first): /Users/Documents/opencv/source/opencv_contrib-master/modules/dnn/cmake/OpenCVFindLibProtobuf.cmake:32 (ocv_download) /Users/Documents/opencv/source/opencv_contrib-master/modules/dnn/CMakeLists.txt:5 (include)

cmake编译opencv3.2+opencv_contrib一直报错。。_course

一直会提示这个错，有大神知道原因吗，我把一些依赖包下载下来放固定目录里了。还是该提醒还提醒错。我用的是opencv3.2+vs2015。 CMake Error at H:/OpenCV/opencv/sources/cmake/OpenCVUtils.cmake:1005 (file): file MD5 failed to read file "H:/OpenCV/Library/3rdparty/protobuf/": Permission denied Call Stack (most recent call first): H:/OpenCV/opencv_contrib-master/modules/dnn/cmake/OpenCVFindLibProtobuf.cmake:32 (ocv_download) H:/OpenCV/opencv_contrib-master/modules/dnn/CMakeLists.txt:5 (include)

编译opencv contrib（opencv扩展库）库失败_course

环境：vs2015 community with update 3, Opencv3.2.0vc14, opencv_contrib 3.2.0 目标：自己编译opencv+opencv_contrib库。 编译出错提示（部分）： 严重性 代码 说明 项目 文件 行 禁止显示状态 错误 C2610 “std::tuple<cv::Size,perf::`anonymous-namespace'::MatDepth>::tuple(const std::tuple<cv::Size,perf::`anonymous-namespace'::MatDepth> &)”: 不是可默认为的特殊成员函数 opencv_perf_core D:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\tuple 607 严重性 代码 说明 项目 文件 行 禁止显示状态 错误 C2610 “std::tuple<cv::Size,perf::`anonymous-namespace'::MatDepth>::tuple(std::tuple<cv::Size,perf::`anonymous-namespace'::MatDepth> &&)”: 不是可默认为的特殊成员函数 opencv_perf_core D:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\tuple 608 严重性 代码 说明 项目 文件 行 禁止显示状态 错误 C2382 “std::tuple<cv::Size,perf::`anonymous-namespace'::MatDepth>::operator =”: 重定义；不同的异常规范 opencv_perf_core D:\opencv\sources\modules\ts\include\opencv2\ts\ts_perf.hpp 385 严重性 代码 说明 项目 文件 行 禁止显示状态 错误 C2264 “std::tuple<cv::Size,perf::`anonymous-namespace'::MatDepth>::tuple”: 函数定义或声明中有错误；未调用函数 opencv_perf_core D:\opencv\sources\modules\core\perf\opencl\perf_channels.cpp 165 严重性 代码 说明 项目 文件 行 禁止显示状态 错误 C2264 “std::tuple<cv::Size,perf::`anonymous-namespace'::MatDepth>::tuple”: 函数定义或声明中有错误；未调用函数 opencv_perf_core D:\opencv\sources\modules\core\perf\opencl\perf_channels.cpp 187

Opencv 小白急求大牛解答 _course

#include <iostream> #include <fstream> #include <cstring> #include <opencv2/core/core.hpp> #include <opencv2/highgui/highgui.hpp> using namespace cv ; using namespace std ; struct point { int row; int col ; } p[1000000];//记录白点的点的集合 即钢 struct vadioline2//2条钢的结构体 { int id; int xbegin; int xend; int ybegin; int yend; int flag;//正确为1，异常为-1; int cur_max;//最大斜率 int wei_max;//最大宽度 }bmp_line2[100];//7 int main() { //IplImage* imgSrc = cvLoadImage("D:\\测试钢\\2.bmp",0);//对图像的灰度化 IplImage* imgSrc = cvLoadImage("D:\\Opencv_picture\\1.bmp",0);//对图像的灰度化 /* cvNamedWindow("show") ; cvShowImage("show",imgSrc) ; cvWaitKey(0) ;*/ uchar* pixel = new uchar; //int data =0; int time = 0 ; int i,j ; int len = 0 ;// 白点的个数 //ofstream file("D:\\测试钢\\1.txt", ios::out);//打开一个文件,等同于file.open("test.txt", ios::out); int ImageData[1000][1000] ; memset(ImageData,0,sizeof(ImageData)) ; for (i = 0; i < imgSrc->height; i++)//遍历图像所有像素点 { for (j = 0; j < imgSrc->width; j++) { pixel = (uchar*)(imgSrc->imageData + i*imgSrc->widthStep+j); //data = (int)(imgSrc->imageData + i*imgSrc->widthStep+j) ; // cout << "pixel=" <<(*pixel)+0<< endl;//+0隐式转换为整型，否则会打印出字符 /// file <<(*pixel)+0<<" " ; ImageData[j][i] = (*pixel)+0 ; //ImageData[j][i] = data ; /*time++ ; if(time == 100) { file<<endl ; }*/ if((*pixel)+0 == 255) //把所有的白点都存到了P素组 //if(data == 255) //把所有的白点都存到了P素组 { p[len].row = j ; p[len].col = i; len++ ; } } } cout<<len<<endl ; /*ofstream file1("D:\\测试钢\\11.txt", ios::out); //把点的坐标都记录下来 放到11.TXT的文本文档中 cout<<len<<endl ; for(i = 0 ; i < len ;i++) { file1 <<p[i].x<<" "<<p[i].y<<" "<<endl ; time++ ; if(time == 100) { file1<<endl ; } }*/ int change_count = 0 ; int change_flag = 0 ; int change_first = 0;//是否是第一次发现是2条钢的那条直线 int change_final = 0 ;//是否是最后一次 int change_first_y = 0; int change_middle_1_y = 0 ; int change_middle_2_y = 0 ; int change_final_y = 0 ; int change_second_y = 0; for(i = 0 ; i < 1000 ;i++) { change_count = 0 ; //change_flag = change_count ; for(j = 0 ; j < 1000 ;j++) { if(ImageData[i][j] > 0 && !change_flag) { change_count++ ; change_flag = 1 ; if(change_count == 1) change_first_y = j ; else change_second_y = j ; } if(ImageData[i][j] == 0 && change_flag) { change_flag = 0 ; if(change_count == 1) { change_middle_1_y = j ; } else change_middle_2_y = j ; } if(change_count == 2) { change_final_y = j ; break ; } } if(change_count == 2 ) //说明是第一次发现是2条钢 { change_flag = 1 ; bmp_line2[0].xbegin = i ;//记录下开始坐标 bmp_line2[0].ybegin = change_first_y ;//记录下开始坐标 bmp_line2[0].yend = change_middle_1_y-1 ; if(bmp_line2[0].yend - bmp_line2[0].ybegin > bmp_line2[0].wei_max) //算出最大的宽度 bmp_line2[0].wei_max = bmp_line2[0].yend - bmp_line2[0].ybegin ; bmp_line2[1].xbegin = i ;//记录下开始坐标 bmp_line2[1].ybegin = change_second_y ;//记录下开始坐标 bmp_line2[1].yend = change_middle_2_y-1 ; if(bmp_line2[1].yend - bmp_line2[1].ybegin > bmp_line2[1].wei_max) bmp_line2[1].wei_max = bmp_line2[1].yend - bmp_line2[1].ybegin ; } if(change_count != 2 && change_first == 1) //说明是最后一次发现是2条钢 { change_first = 0; bmp_line2[0].xend = i ;//记录下结束坐标 bmp_line2[1].xend = i ;//记录下结束坐标 break; } } ofstream file1("D:\\Opencv_picture\\1.txt", ios::out); //把点的坐标都记录下来 放到11.TXT的文本文档中 file1 <<bmp_line2[0].wei_max<<" "<<bmp_line2[1].wei_max<<" "<<endl ; cvReleaseImage(&imgSrc); //delete imgSrc ; file1.close() ; //file.close() ; delete pixel; delete ImageData ; return 0 ; } ////// “Opencv_judge.exe”(Win32): 已加载“C:\Windows\System32\msvcp140d.dll”。已加载符号。 “Opencv_judge.exe”(Win32): 已加载“C:\Windows\System32\mfplat.dll”。无法查找或打开 PDB 文件。 “Opencv_judge.exe”(Win32): 已加载“C:\Windows\System32\d3d11.dll”。已加载符号。 “Opencv_judge.exe”(Win32): 已加载“C:\Windows\System32\mfreadwrite.dll”。已加载符号。 “Opencv_judge.exe”(Win32): 已加载“C:\Windows\System32\concrt140d.dll”。已加载符号。 “Opencv_judge.exe”(Win32): 已加载“C:\Windows\System32\vcruntime140d.dll”。已加载符号。 “Opencv_judge.exe”(Win32): 已加载“C:\Windows\System32\ucrtbased.dll”。无法查找或打开 PDB 文件。 “Opencv_judge.exe”(Win32): 已卸载“C:\Windows\System32\ucrtbased.dll” “Opencv_judge.exe”(Win32): 已加载“C:\Windows\System32\mf.dll”。无法查找或打开 PDB 文件。 “Opencv_judge.exe”(Win32): 已加载“C:\Windows\System32\dxgi.dll”。已加载符号。 “Opencv_judge.exe”(Win32): 已加载“C:\Windows\System32\ucrtbased.dll”。无法查找或打开 PDB 文件。 “Opencv_judge.exe”(Win32): 已加载“C:\Windows\System32\cryptbase.dll”。已加载符号。 “Opencv_judge.exe”(Win32): 已加载“C:\Windows\System32\mfcore.dll”。已加载符号。 “Opencv_judge.exe”(Win32): 已加载“C:\Windows\System32\crypt32.dll”。已加载符号。 “Opencv_judge.exe”(Win32): 已加载“C:\Windows\System32\msasn1.dll”。已加载符号。 “Opencv_judge.exe”(Win32): 已加载“C:\Windows\System32\ksuser.dll”。已加载符号。 “Opencv_judge.exe”(Win32): 已加载“C:\Windows\System32\bcrypt.dll”。已加载符号。 “Opencv_judge.exe”(Win32): 已加载“C:\Windows\System32\imm32.dll”。已加载符号。 “Opencv_judge.exe”(Win32): 已加载“C:\Windows\System32\RTWorkQ.dll”。已加载符号。 0x00007FF6DD5D8C27 处的第一机会异常(在 Opencv_judge.exe 中): 0xC00000FD: Stack overflow (参数: 0x0000000000000001, 0x000000A7E3A03000)。 0x00007FF6DD5D8C27 处有未经处理的异常(在 Opencv_judge.exe 中): 0xC00000FD: Stack overflow (参数: 0x0000000000000001, 0x000000A7E3A03000)。 线程 0xb6c 已退出，返回值为 0 (0x0)。 线程 0x798 已退出，返回值为 0 (0x0)。 线程 0xdc0 已退出，返回值为 0 (0x0)。 程序“[13436] Opencv_judge.exe”已退出，返回值为 0 (0x0)。 

Android使用opencv，不需要装opencv manager_course

# 按照了网上的步骤将opencv的libs里的动态文件(.so)加入了jniLibs文件夹。但一直还是出现错误 ``` public class MainActivity extends AppCompatActivity { private static final String TAG = "MainActivity"; // Used to load the 'native-lib' library on application startup. static { System.loadLibrary("native-lib"); } private BaseLoaderCallback mLoaderCallback = new BaseLoaderCallback(this) { @Override public void onManagerConnected(int status) { if (status == LoaderCallbackInterface.SUCCESS) { Log.i(TAG, "OpenCV loaded successfully"); } else { super.onManagerConnected(status); } } }; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } @Override protected void onResume() { super.onResume(); if (!OpenCVLoader.initDebug()) { Log.d(TAG, "Internal OpenCV library not found. Using OpenCV Manager for initialization"); OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_3_0_0, this, mLoaderCallback); } else { Log.d(TAG, "OpenCV library found inside package. Using it!"); mLoaderCallback.onManagerConnected(LoaderCallbackInterface.SUCCESS); } } /** * A native method that is implemented by the 'native-lib' native library, * which is packaged with this application. */ public native String stringFromJNI(); } ``` 以上是MainActivity.java文件内容，尝试过很多次，有一两次达到了不需要装opencv manager的目的。但大多是都会报错：**E/OpenCV/StaticHelper: OpenCV error: Cannot load info library for OpenCV**

windows下cmake编译opencv3.1+opencv_contrib一直报错_course

错误如下，是在配置“OPENCV_EXTRA_MODULES_PATH” 这个时候报错的 CMake Error at C:/Users/wyq/Downloads/opencv/sources/cmake/OpenCVUtils.cmake:857 (file): file MD5 failed to read file "C:/Users/wyq/Downloads/opencv/opencv_contrib-master/3rdparty/tinydnn/": Permission denied Call Stack (most recent call first): C:/Users/wyq/Downloads/opencv/opencv_contrib-master/modules/dnn_modern/CMakeLists.txt:18 (ocv_download) Downloading ... CMake Error at C:/Users/wyq/Downloads/opencv/sources/cmake/OpenCVUtils.cmake:895 (file): file DOWNLOAD cannot open file for write. Call Stack (most recent call first): C:/Users/wyq/Downloads/opencv/opencv_contrib-master/modules/dnn_modern/CMakeLists.txt:18 (ocv_download) CMake Error at C:/Users/wyq/Downloads/opencv/sources/cmake/OpenCVUtils.cmake:899 (message): Failed to download . Status= Call Stack (most recent call first): C:/Users/wyq/Downloads/opencv/opencv_contrib-master/modules/dnn_modern/CMakeLists.txt:18 (ocv_download) Configuring incomplete, errors occurred! See also "C:/Users/wyq/Downloads/opencv/opencv_contrib-master/CMakeFiles/CMakeOutput.log". See also "C:/Users/wyq/Downloads/opencv/opencv_contrib-master/CMakeFiles/CMakeError.log".

用cmake编译opencv3.4.0后无法找到opencv_world340.lib 的问题_course

按照网上给的操作做到了最后一部添加依赖项的时候要求添加”opencv_ts340.lib opencv_world340.lib “这些文件，然而惊讶的发现x86->vc11-lib里面没有这些文件，只有其它的lib。怎么办呢？编译都显示成功的呀。 以下是试运行的代码 #include<iostream> #include <opencv2/core/core.hpp> #include <opencv2/highgui/highgui.hpp> using namespace cv; int main() { // 读入一张图片（游戏原画） Mat img = imread("pic.jpg"); // 创建一个名为 "游戏原画"窗口 namedWindow("游戏原画"); // 在窗口中显示游戏原画 imshow("游戏原画", img); // 等待6000 ms后窗口自动关闭 waitKey(6000); }

linux安装opencv是make出错_course

[ 7%] Built target libwebp [ 7%] Built target opencv_test_core_pch_dephelp [ 7%] Built target opencv_core_pch_dephelp [ 7%] Built target opencv_ts_pch_dephelp [ 7%] Built target pch_Generate_opencv_ts [ 7%] Built target pch_Generate_opencv_core [ 7%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/hal_internal.cpp.o /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp: In function ‘int lapack_gemm_c(const fptype*, size_t, const fptype*, size_t, fptype, const fptype*, size_t, fptype, fptype*, size_t, int, int, int, int)’: /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp:437: error: expected unqualified-id before ‘__complex__’ /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp:437: error: expected ‘)’ before ‘__complex__’ /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp:438: error: expected unqualified-id before ‘__complex__’ /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp:438: error: expected ‘)’ before ‘__complex__’ /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp:439: error: expected unqualified-id before ‘__complex__’ /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp:439: error: expected ‘)’ before ‘__complex__’ /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp:440: error: expected unqualified-id before ‘__complex__’ /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp:440: error: expected ‘)’ before ‘__complex__’ /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp:443: error: expected unqualified-id before ‘__complex__’ /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp:443: error: expected ‘;’ before ‘__complex__’ /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp:444: error: expected unqualified-id before ‘__complex__’ /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp:444: error: expected ‘;’ before ‘__complex__’ /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp:494: error: expected unqualified-id before ‘__complex__’ /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp:494: error: expected ‘)’ before ‘__complex__’ /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp:496: error: expected unqualified-id before ‘__complex__’ /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp:496: error: expected ‘)’ before ‘__complex__’ /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp:501: error: expected unqualified-id before ‘__complex__’ /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp:501: error: expected ‘)’ before ‘__complex__’ /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp:504: error: ‘cAlpha’ was not declared in this scope /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp:504: error: ‘cBeta’ was not declared in this scope /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp:506: error: ‘cAlpha’ was not declared in this scope /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp:506: error: ‘cBeta’ was not declared in this scope /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp: In function ‘int lapack_gemm_c(const fptype*, size_t, const fptype*, size_t, fptype, const fptype*, size_t, fptype, fptype*, size_t, int, int, int, int) [with fptype = float]’: /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp:591: instantiated from here /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp:439: warning: unused variable ‘ldsrc3’ [-Wunused-variable] /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp: At global scope: /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp:434: warning: unused parameter ‘alpha’ [-Wunused-parameter] /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp: In function ‘int lapack_gemm_c(const fptype*, size_t, const fptype*, size_t, fptype, const fptype*, size_t, fptype, fptype*, size_t, int, int, int, int) [with fptype = double]’: /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp:598: instantiated from here /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp:439: warning: unused variable ‘ldsrc3’ [-Wunused-variable] /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp: At global scope: /home/w/opencv-3.2.0/modules/core/src/hal_internal.cpp:434: warning: unused parameter ‘alpha’ [-Wunused-parameter] modules/core/CMakeFiles/opencv_core.dir/build.make:930: recipe for target 'modules/core/CMakeFiles/opencv_core.dir/src/hal_internal.cpp.o' failed make[2]: *** [modules/core/CMakeFiles/opencv_core.dir/src/hal_internal.cpp.o] Error 1 CMakeFiles/Makefile2:1289: recipe for target 'modules/core/CMakeFiles/opencv_core.dir/all' failed make[1]: *** [modules/core/CMakeFiles/opencv_core.dir/all] Error 2 Makefile:160: recipe for target 'all' failed make: *** [all] Error 2

.树莓派上不太适合用opencv实时处理吗？？_course

是这样。。跟着网上的教程用树莓派装了opencv 然后也运行了一些简单的图像处理 识别分割啥的但是感觉效果都好差。。本科生想出去参加竞赛来着。做机器人 拿树莓派做上位机再加上 跑opencv+cnn等等。。。 会不会arm根本忙不过来啊。。。我看到很多人用 openmv那个硬件不知道好不好用 听说比opencv更适用在机器人上 opencv还是需要强大的操作系统来跑啊。。！！ 有没有小伙伴能给我讲一下 我现在的想法对不对或者给些建议参考 关于我后期是做opencv还是mv 或者其他方面的建议 谢谢

YOLO v3 OpenCV-3.4.1_course

balbal..... 下载完weight后，在终端输入： ./darknet detect cfg/yolov3.cfg yolov3.weights data/dog.jpg 我是根据网上Yolo v3教程一步一步来的，装了最新的opencv，发现如下问题： 104 conv 256 3 x 3 / 1 52 x 52 x 128 -> 52 x 52 x 256 1.595 BFLOPs 105 conv 255 1 x 1 / 1 52 x 52 x 256 -> 52 x 52 x 255 0.353 BFLOPs 106 yolo Loading weights from yolov3.weights...Done! data/dog.jpg: Predicted in 0.045922 seconds. dog: 99% truck: 92% bicycle: 99% OpenCV(3.4.1) Error: Assertion failed ((flags & FIXED_TYPE) != 0) in type, file /home/kiraq/home/installation/opencv-3.4.1/modules/core/src/matrix_wrap.cpp, line 807 terminate called after throwing an instance of 'cv::Exception' what(): OpenCV(3.4.1) /home/kiraq/home/installation/opencv-3.4.1/modules/core/src/matrix_wrap.cpp:807: error: (-215) (flags & FIXED_TYPE) != 0 in function type Aborted (core dumped) 请问如何解决？

opencv配置成功后，进行测试时出错_course

CMake Warning at /home/obvious/opencv/cmake/OpenCVConfig.cmake:166 (message): Found OpenCV Windows Pack but it has no binaries compatible with your configuration. You should manually point CMake variable OpenCV_DIR to your build of OpenCV library. Call Stack (most recent call first): CMakeLists.txt:10 (find_package) CMake Error at CMakeLists.txt:10 (find_package): Found package configuration file: /home/obvious/opencv/cmake/OpenCVConfig.cmake but it set OpenCV_FOUND to FALSE so package "OpenCV" is considered to be NOT FOUND. 

eclipse环境下的opencv使用问题_course

我的eclipse版本是4.5.2 opencv是3.1 我是按照这个博客中的指导进行的处理 http://blog.sina.com.cn/s/blog_7b4a5b550101ifi7.html 但是我在运行测试程序的时候，总是出现下面的错误 Exception in thread "main" java.lang.UnsatisfiedLinkError: C:\Users\John\AppData\Local\Temp\javacpp62144455200083\jniopencv_core.dll: Can't find dependent libraries at java.lang.ClassLoader$NativeLibrary.load(Native Method) at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1938) at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1821) at java.lang.Runtime.load0(Runtime.java:809) at java.lang.System.load(System.java:1086) at com.googlecode.javacpp.Loader.loadLibrary(Loader.java:418) at com.googlecode.javacpp.Loader.load(Loader.java:368) at com.googlecode.javacpp.Loader.load(Loader.java:315) at com.googlecode.javacv.cpp.opencv_core.<clinit>(opencv_core.java:131) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:348) at com.googlecode.javacpp.Loader.load(Loader.java:334) at com.googlecode.javacv.cpp.opencv_imgproc.<clinit>(opencv_imgproc.java:96) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:348) at com.googlecode.javacpp.Loader.load(Loader.java:334) at com.googlecode.javacv.cpp.opencv_highgui.<clinit>(opencv_highgui.java:91) at test2.Opencv1.smooth(Opencv1.java:11) at test2.Opencv1.main(Opencv1.java:25) 求指导，急需，跪求！！！ p.s.当我在执行上面的那个博客中的下面那个官网测试代码时是没有问题的，但执行第一段测试程序时就出问题了

opencv找不到dll的问题_course

 如上图所示，运行程序时提示找不到opencv_highgui331.dll（后面还跟着找不到一大堆opencv的dll)。可问题是我已经把opencv的动态链接库文件添加到系统路径中了啊，  有谁知道错误的原因吗？

在ubuntu下配置opencv，cmake成功了,而make时候报错_course

1 [ 6%] Generating precomp.hpp.gch/opencv_core_Release.gch 2 In file included from /usr/include/c++/6/bits/stl_algo.h:59:0, 3 from /usr/include/c++/6/algorithm:62, 4 from /opt/opencv/opencv-3.1.0/modules/core/include/opencv2/core/base.hpp:53, 5 from /opt/opencv/opencv-3.1.0/modules/core/include/opencv2/core.hpp:54, 6 from /opt/opencv/opencv-3.1.0/modules/core/include/opencv2/core/utility.hpp:52, 7 from /opt/opencv/build/modules/core/precomp.hpp:49: 8 /usr/include/c++/6/cstdlib:75:25: fatal error: stdlib.h: 没有那个文件或目录 9 #include_next <stdlib.h> 10 ^ 11 compilation terminated. 12 modules/core/CMakeFiles/pch_Generate_opencv_core.dir/build.make:62: recipe for target 'modules/core/precomp.hpp.gch/opencv_core_Release.gch' failed 13 make[2]: *** [modules/core/precomp.hpp.gch/opencv_core_Release.gch] Error 1 14 CMakeFiles/Makefile2:1178: recipe for target 'modules/core/CMakeFiles/pch_Generate_opencv_core.dir/all' failed 15 make[1]: *** [modules/core/CMakeFiles/pch_Generate_opencv_core.dir/all] Error 2 16 Makefile:160: recipe for target 'all' failed 17 make: *** [all] Error 2 

centos7 java加载opencv.so库 opencv 创建CascadeClassifier报错_course

错误提示： ``` Exception in thread "main" java.lang.UnsatisfiedLinkError: org.opencv.objdetect.CascadeClassifier.CascadeClassifier_0(Ljava/lang/String;)J at org.opencv.objdetect.CascadeClassifier.CascadeClassifier_0(Native Method) at org.opencv.objdetect.CascadeClassifier.<init>(CascadeClassifier.java:37) at com.dear.faceMontage.utils.Test.main(Test.java:34) ``` 已经在代码里加载了so库位置！ ``` if(os.toLowerCase().startsWith("win")){//windows openDllame = basePath+"opencv_java341.dll"; }else{//linux openDllame = basePath+"libopencv_java341.so"; } ``` java是打包成jar包执行，opencv.so文件放在jar包同级目录 

opencv头文件<opencv2/opencv.hpp>打不开，为什么 ？_course

我是小白，配置win10+VS2017+opencv3.4.2，看了很多论坛的opencv的教程配置好了路径什么的，但是头文件依然打不开，卡这里两天了。。。 我也把相应的dll文件放到了System32和SysWow64。。。。 请问到底是哪里有问题？ 

opencv3.2与opencv 2.8 切换的问题_course

我的ubuntu系统原来安装了opencv２.8，现在由于实际需要，安装了opencv3.2。但是，opencv2.8还得继续保留。利用pkg-config --modversion opencv 查看opencv的版本，显示是３.2.０。原来（opencv2.8下），CMakeList文件是这样写的。 project(test) find_package(OpenCV REQUIRED) add_executable(test src/test.cpp) target_link_libraries(test ${OpenCV_LIBS}) cmake_minimum_required(VERSION 2.8) 我使用opencv3.2编译的时候，按照要求，我把路径给加上了。 project(test) find_package(OpenCV REQUIRED) set(OpenCV_DIR "/usr/local/opencv320/share/OpenCV") INCLUDE_DIRECTORIES(${OpenCV_INCLUDE_DIRS}) add_executable(test src/test.cpp) target_link_libraries(test ${OpenCV_LIBS}) cmake_minimum_required(VERSION 3.2) 但是显示错误：要求的opencv版本太高，当前运行版本为２.8。但是我用　pkg-config --modversion opencv　查看版本，显示的是３.2.0

关于SimpleCV和opencv的问题_course

环境为mac下的py2.7，在使用simplecv的时候出现提示：ImportError: Cannot load OpenCV library which is required by SimpleCV jupyter的提示为： “ /Users/sapphire/_Work space/颈动脉/图像分类代码/featuresHOG.py in <module>() 5 import numpy as np 6 import cv2 # opencv 2 ----> 7 from SimpleCV import * 8 import skimage 9 /Users/sapphire/anaconda/envs/python27/lib/python2.7/site-packages/SimpleCV/__init__.py in <module>() 1 __version__ = '1.3.0' 2 ----> 3 from SimpleCV.base import * 4 from SimpleCV.Camera import * 5 from SimpleCV.Color import * /Users/sapphire/anaconda/envs/python27/lib/python2.7/site-packages/SimpleCV/base.py in <module>() 57 import cv 58 except ImportError: ---> 59 raise ImportError("Cannot load OpenCV library which is required by SimpleCV") 60 61 #optional libraries ImportError: Cannot load OpenCV library which is required by SimpleCV ” 请问该如何解决这个问题？