第一次在这里向stackoverflow发布问题。对不起，如果我破坏了格式！
我正在尝试遵循关于 openCV 的基本教程，即这个： http ://aishack.in/tutorials/tracking-colored-objects-in-opencv/
我在网上查看了有关如何安装 openCV 的各种教程，包括：
为 Visual Studio 2010和 opencv.willowgarage.com/wiki/VisualC%2B%2B设置 OpenCV-2.3
没有太多的运气。
我现在运行的当前版本是 OpenCV 2.3.0。我目前正在使用 Microsoft Visual C++ Express 2010 在 Windows 7 上运行。
每当我尝试构建和运行代码时，都会收到以下错误：
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:\Users\Kevin\Documents\Visual Studio 2010\Projects\Camera\Debug\Camera.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...\n");
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)\n", 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
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：
附加依赖项：
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
其他图书馆目录：
C:\OpenCV2.3\build\x64\vc10\lib;C:\OpenCV2.3\build\x64\vc10\bin;C:\OpenCV2.3\build\x64\vc10\staticlib;%(AdditionalLibraryDirectories)
其他包含目录：
C:\OpenCV2.3\build\include\opencv;C:\OpenCV2.3\build\include\opencv2;C:\OpenCV2.3\build\include
我还在 Windows 的路径变量中包含了 DLL 的路径：
;C:\OpenCV2.3\build\x64\vc10\bin;C:\OpenCV2.3\build\bin;
我查看了其他论坛、其他堆栈溢出问题等，但没有太多帮助。我一直在努力让它在周末的大部分时间里工作。任何帮助将非常感激！