图像分割技术c语言程序,BMP图像分割C语言程序.docx

#include int main( int argc, char** argv )

{

//声明IplImage指针

IplImage* pFrame &＃61; NULL;

IplImage* pFrImg &＃61; NULL;

IplImage* pBkImg &＃61; NULL;

CvMat* pFrameMat &＃61; NULL;

CvMat* pFrMat &＃61; NULL;

CvMat* pBkMat &＃61; NULL;

CvCapture* pCapture &＃61; NULL;

int nFrmNum &＃61; 0;

//创建窗口

cvNamedWindow("video", 1);

cvNamedWindow("background",1);

cvNamedWindow("foreground",1);

//使窗口有序排列

cvMoveWindow("video", 30, 0);

cvMoveWindow("background", 360, 0);

cvMoveWindow("foreground", 690, 0);

if( argc > 2 )

{

fprintf(stderr, "Usage: bkgrd [video_file_name]\n");

return -1;

}

//打开摄像头

if (argc &＃61;&＃61;1)

if( !(pCapture &＃61; cvCaptureFromCAM(-1)))

{

fprintf(stderr, "Can not open camera.\n");

return -2;

}

//打开视频文件

if(argc &＃61;&＃61; 2)

if( !(pCapture &＃61; cvCaptureFromFile(argv[1])))

{

fprintf(stderr, "Can not open video file %s\n", argv[1]);

return -2;

}

//逐帧读取视频

while(pFrame &＃61; cvQueryFrame( pCapture ))

{

nFrmNum&＃43;&＃43;;

//如果是第一帧&＃xff0c;需要申请内存&＃xff0c;并初始化

if(nFrmNum &＃61;&＃61; 1)

{

pBkImg &＃61; cvCreateImage(cvSize(pFrame->width, pFrame->height), IPL_DEPTH_8U,1);

pFrImg &＃61; cvCreateImage(cvSize(pFrame->width, pFrame->height), IPL_DEPTH_8U,1);

pBkMat &＃61; cvCreateMat(pFrame->height, pFrame->width, CV_32FC1);

pFrMat &＃61; cvCreateMat(pFrame->height, pFrame->width, CV_32FC1);

pFrameMat &＃61; cvCreateMat(pFrame->height, pFrame->width, CV_32FC1);

//转化成单通道图像再处理

cvCvtColor(pFrame, pBkImg, CV_BGR2GRAY);

cvCvtColor(pFrame, pFrImg, CV_BGR2GRAY);

cvConvert(pFrImg, pFrameMat);

cvConvert(pFrImg, pFrMat);

cvConvert(pFrImg, pBkMat);

}

else

{

cvCvtColor(pFrame, pFrImg, CV_BGR2GRAY);

cvConvert(pFrImg, pFrameMat);

//高斯滤波先&＃xff0c;以平滑图像

//cvSmooth(pFrameMat, pFrameMat, CV_GAUSSIAN, 3, 0, 0);

//当前帧跟背景图相减

cvAbsDiff(pFrameMat, pBkMat, pFrMat);

//二值化前景图

cvThreshold(pFrMat, pFrImg, 60, 255.0, CV_THRESH_BINARY);

//进行形态学滤波&＃xff0c;去掉噪音

//cvErode(pFrImg, pFrImg, 0, 1);

//cvDilate(pFrImg, pFrImg, 0, 1);

//更新背景

cvRunningAvg(pFrameMat, pBkMat, 0.003, 0);

//将背景转化为图像格式&＃xff0c;用以显示

cvConvert(pBkMat, pBkImg);

//显示图像

cvShowImage("video", pFrame);

cvShowImage("background", pBkImg);

cvShowImage("foreground", pFrImg);

//如果有按键事件&＃xff0c;则跳出循环

//此等待也为cvShowImage函数提供时间完成显示

//等待时间可以根据CPU速度调整

if( cvWaitKey(2) >&＃61; 0 )

break;

}

}