OpenCV Windows7 VC6.0安装以及HelloWorld

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