anna在实验室配置OpenCV的时候，按照中文网站的介绍，很顺利的就完成了。可是回到家情况就大不一样！！总是在链接的时候报错，不是少这个lib就是少那个lib大哭最后查明是anna马虎，忘了将C:\Program Files\OpenCV\lib加入Library files！下面是详细的配置过程：
1.安装OpenCV
2.检查C:\Program Files\OpenCV\bin是否已经被加入到环境变量PATH，如果没有，请加入。加入后需要注销当前Windows用户（或重启）后重新登陆才生效。
3.配置VC
全局设置：
菜单Tools->Options->Directories：先设置lib路径，选择Library files，在下方填入路径：
C:\Program Files\OpenCV\lib 《《------这一行字比较不醒目，但是很重要滴！！不要忘记哦
然后选择include files，在下方填入路径：
C:\Program Files\OpenCV\cxcore\include
C:\Program Files\OpenCV\cv\include
C:\Program Files\OpenCV\cvaux\include
C:\Program Files\OpenCV\ml\include
C:\Program Files\OpenCV\otherlibs\highgui
C:\Program Files\OpenCV\otherlibs\cvcam\include
然后选择source files，在下方填入路径：
C:\Program Files\OpenCV\cv\src
C:\Program Files\OpenCV\cxcore\src
C:\Program Files\OpenCV\cvaux\src
C:\Program Files\OpenCV\otherlibs\highgui
C:\Program Files\OpenCV\otherlibs\cvcam\src\windows
最后点击“ok”，完成设置。
项目设置：
每创建一个将要使用OpenCV的VC Project，都需要给它指定需要的lib。菜单：Project->Settings，然后将Setting for选为All Configurations，然后选择右边的link标签，在Object/library modules附加上
cxcore.lib cv.lib ml.lib cvaux.lib highgui.lib cvcam.lib
点击OK，就大功告成啦
HelloWorld
该实例来自OpenCV自带Simple drawing.c经删除后整理
#ifdef _CH_
#pragma package <opencv>
#endif
#ifndef _EiC
#include "cv.h"
#include "highgui.h"
#include <stdlib.h>
#include <stdio.h>
#endif
#define NUMBER 100
#define DELAY 5
char wndname[] = "Drawing Demo";
CvScalar random_color(CvRNG* rng)
{
int icolor = cvRandInt(rng);
return CV_RGB(icolor&255, (icolor>>8)&255, (icolor>>16)&255);
}
int main( int argc, char** argv )
{
int line_type = CV_AA; // change it to 8 to see non-antialiased graphics
int i;
CvPoint pt1;
double angle;
CvSize sz;
CvPoint ptt[6];
CvPoint* pt[2];
int arr[2];
CvFont font;
CvRNG rng;
int width = 1000, height = 700;
int width3 = width*3, height3 = height*3;
CvSize text_size;
int ymin = 0;
// Load the source image
IplImage* image = cvCreateImage( cvSize(width,height), 8, 3 );
IplImage* image2;
// Create a window
cvNamedWindow(wndname, 1 );
cvZero( image );
cvShowImage(wndname,image);
rng = cvRNG((unsigned)-1);
pt[0] = &(ptt[0]);
pt[1] = &(ptt[3]);
arr[0] = 3;
arr[1] = 3;
cvInitFont( &font, CV_FONT_HERSHEY_COMPLEX, 3, 3, 0.0, 5, line_type );
cvGetTextSize( "OpenCV forever!", &font, &text_size, &ymin );
pt1.x = (width - text_size.width)/2;
pt1.y = (height + text_size.height)/2;
image2 = cvCloneImage(image);
for( i = 0; i < 255; i++ )
{
cvSubS( image2, cvScalarAll(i), image, 0 );
cvPutText( image, "OpenCV forever!", pt1, &font, CV_RGB(255,i,i));
cvShowImage(wndname,image);
cvWaitKey(DELAY);
}
// Wait for a key stroke; the same function arranges events processing
cvWaitKey(0);
cvReleaseImage(&image);
cvReleaseImage(&image2);
cvDestroyWindow(wndname);
return 0;
}
#ifdef _EiC
main(1,"drawing.c");
#endif