在 Visual Studios 2010 Express C++ 中导入 OpenCV2.3 库时出现未解决的外部符号错误 [英] unresolved external symbol error when importing libraries for OpenCV2.3 in Visual Studios 2010 Express C++
问题描述
第一次在这里向 stackoverflow 发布问题.对不起，如果我破坏了格式！
first time posting a question here to stackoverflow. Sorry if I butcher the formatting!
我正在尝试遵循有关 openCV 的基本教程，即:http://aishack.in/tutorials/tracking-colored-objects-in-opencv/
I am attempting to follow a basic tutorial on openCV, namely this one: http://aishack.in/tutorials/tracking-colored-objects-in-opencv/
我在网上看了很多关于如何安装 openCV 的教程，包括:
I have looked at various tutorial online on how to install openCV, including:
为 Visual Studio 2010 设置 OpenCV-2.3和opencv.willowgarage.com/wiki/VisualC%2B%2B
Setup OpenCV-2.3 for Visual Studio 2010 and opencv.willowgarage.com/wiki/VisualC%2B%2B
运气不佳.
我现在运行的当前版本是 OpenCV 2.3.0.我目前使用 Microsoft Visual C++ Express 2010 在 Windows 7 上运行.
The current version I have running right now is OpenCV 2.3.0. I am currently running on Windows 7 with Microsoft Visual C++ Express 2010.
每当我尝试构建和运行我的代码时，我都会收到以下错误:
Whenever I try to build and run my code, I get the following errors:
1>------ Build started: Project: Camera, Configuration: Debug Win32 ------
1>camera.obj : error LNK2019: unresolved external symbol _cvReleaseImage referenced in function "struct _IplImage * __cdecl GetThresholdedImage(struct _IplImage *)" (?GetThresholdedImage@@YAPAU_IplImage@@PAU1@@Z)
1>camera.obj : error LNK2019: unresolved external symbol _cvInRangeS referenced in function "struct _IplImage * __cdecl GetThresholdedImage(struct _IplImage *)" (?GetThresholdedImage@@YAPAU_IplImage@@PAU1@@Z)
1>camera.obj : error LNK2019: unresolved external symbol _cvCvtColor referenced in function "struct _IplImage * __cdecl GetThresholdedImage(struct _IplImage *)" (?GetThresholdedImage@@YAPAU_IplImage@@PAU1@@Z)
1>camera.obj : error LNK2019: unresolved external symbol _cvCreateImage referenced in function "struct _IplImage * __cdecl GetThresholdedImage(struct _IplImage *)" (?GetThresholdedImage@@YAPAU_IplImage@@PAU1@@Z)
1>camera.obj : error LNK2019: unresolved external symbol _cvGetSize referenced in function "struct _IplImage * __cdecl GetThresholdedImage(struct _IplImage *)" (?GetThresholdedImage@@YAPAU_IplImage@@PAU1@@Z)
1>camera.obj : error LNK2019: unresolved external symbol _cvReleaseCapture referenced in function _main
1>camera.obj : error LNK2019: unresolved external symbol _cvWaitKey referenced in function _main
1>camera.obj : error LNK2019: unresolved external symbol _cvShowImage referenced in function _main
1>camera.obj : error LNK2019: unresolved external symbol _cvAdd referenced in function _main
1>camera.obj : error LNK2019: unresolved external symbol _cvLine referenced in function _main
1>camera.obj : error LNK2019: unresolved external symbol _cvGetCentralMoment referenced in function _main
1>camera.obj : error LNK2019: unresolved external symbol _cvGetSpatialMoment referenced in function _main
1>camera.obj : error LNK2019: unresolved external symbol _cvMoments referenced in function _main
1>camera.obj : error LNK2019: unresolved external symbol _cvQueryFrame referenced in function _main
1>camera.obj : error LNK2019: unresolved external symbol _cvNamedWindow referenced in function _main
1>camera.obj : error LNK2019: unresolved external symbol _cvCreateCameraCapture referenced in function _main
1>C:UsersKevinDocumentsVisual Studio 2010ProjectsCameraDebugCamera.exe : fatal error LNK1120: 16 unresolved externals
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
我的代码如下:
#include "cv.h"
#include "highgui.h"
IplImage* GetThresholdedImage(IplImage* img)
{
IplImage* imgHSV = cvCreateImage(cvGetSize(img), 8, 3);
cvCvtColor(img, imgHSV, CV_BGR2HSV);
IplImage* imgThreshed = cvCreateImage(cvGetSize(img), 8, 1);
cvInRangeS(imgHSV, cvScalar(20, 100, 100), cvScalar(30, 255, 255), imgThreshed);
cvReleaseImage(&imgHSV);
return imgThreshed;
}
int main()
{
CvCapture* capture = 0;
capture = cvCaptureFromCAM(1);
if(!capture)
{
printf("Could not initialize capturing...
");
getchar();
return -1;
}
cvNamedWindow("video");
cvNamedWindow("thresh");
IplImage* imgScribble = NULL;
while(1)
{
IplImage* frame = 0;
frame = cvQueryFrame(capture);
if(!frame)
break;
//cvErode(frame, frame, 0, 2); // ADD this line
//initalize the scribble frame if has not already been done yet
if(imgScribble == NULL)
{
imgScribble = cvCreateImage(cvGetSize(frame), 8, 3);
}
IplImage* imgYellowThresh = GetThresholdedImage(frame);
CvMoments *moments = (CvMoments*)malloc(sizeof(CvMoments));
cvMoments(imgYellowThresh, moments, 1);
// The actual moment values
double moment10 = cvGetSpatialMoment(moments, 1, 0);
double moment01 = cvGetSpatialMoment(moments, 0, 1);
double area = cvGetCentralMoment(moments, 0, 0);
// Holding the last and current ball positions
static int posX = 0;
static int posY = 0;
int lastX = posX;
int lastY = posY;
posX = moment10/area;
posY = moment01/area;
printf("position (%d,%d)
", posX, posY);
// We want to draw a line only if its a valid position
if(lastX>0 && lastY>0 && posX>0 && posY>0)
{
// Draw a yellow line from the previous point to the current point
cvLine(imgScribble, cvPoint(posX, posY), cvPoint(lastX, lastY), cvScalar(0,255,255), 5);
}
cvAdd(frame, imgScribble, frame);
cvShowImage("thresh", imgYellowThresh);
cvShowImage("video", frame);
int c = cvWaitKey(5);
if((char)c==27 )
break;
// Release the thresholded image+moments... we need no memory leaks.. please
cvReleaseImage(&imgYellowThresh);
delete moments;
}
// We're done using the camera. Other applications can now use it
cvReleaseCapture(&capture);
cvReleaseCapture(&capture);
return 0;
}
我已将 Open CV 安装到C:OpenCV2.3
I have installed Open CV to
C:OpenCV2.3
我添加了额外的依赖项、额外的目录等.对于我的项目的偏好，它们如下:
I have added additional dependencies, additional directories, ect. For the preferences for my project, they are as follows:
额外的依赖:
enter code here
opencv_core230.lib
opencv_highgui230.lib
opencv_legacy230.lib
opencv_video230.lib
opencv_ml230.lib
opencv_core230d.lib
opencv_highgui230d.lib
opencv_legacy230d.lib
opencv_video230d.lib
opencv_ml230d.lib
opencv_calib3d230d.lib
附加库目录:<代码>C:OpenCV2.3uildx64vc10lib;C:OpenCV2.3uildx64vc10in;C:OpenCV2.3uildx64vc10staticlib;%(其他图书馆目录)
其他包含目录:
C:OpenCV2.3uildincludeopencv;C:OpenCV2.3uildincludeopencv2;C:OpenCV2.3uildinclude
我还在 Windows 的路径变量中包含了 DLL 的路径:
I also included a path to the DLL's on my path variable for windows:
;C:OpenCV2.3uildx64vc10in;C:OpenCV2.3uildin;
我查看了其他论坛、其他堆栈溢出问题等，但没有太多帮助.在周末的大部分时间里，我一直试图让它发挥作用.任何帮助将不胜感激！
I've looked at other forums, other stack overflow questions, ect without much help. I have been trying to get this to work for the better part of a weekend. Any help would be much appreciated!
推荐答案
如果您明确设置了与所有必要库的链接，但仍然显示链接错误，则您可能混淆了 64/32 位库和应用程序.
If you DID explicitly set up linking with all the necessary libraries, but linking errors still show, you might be mixing up 64/32 bit libraries and application.
即如果您正在构建 32 位应用程序，请确保所有库都包含指向 32 位版本的库.
I.e. make sure that all library includes point to 32 bit version of libraries if you are building 32 bit application.
这篇关于在 Visual Studios 2010 Express C++ 中导入 OpenCV2.3 库时出现未解决的外部符号错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
