利用OPencv在摄像头捕捉的动态画面中显示红线

利用OPencv在摄像头捕捉的动态画面中显示红线 #include "cxcore.h" #include "cvcam.h" #include "windows.h" #include "highgui.h" void callback(IplImage* image); int main() { int ncams=cvcamGetCamerasCount(); HWND MyWin; cvcamSetProperty(0, CVCAM_PROP_ENABLE, CVCAMTRUE); cvcamSetProperty(0, CVCAM_PROP_RENDER, CVCAMTRUE); MyWin=(HWND)cvGetWindowHandle("CameraUSB window"); cvcamSetProperty(0,CVCAM_PROP_WINDOW,&MyWin); cvcamSetProperty(0,CVCAM_PROP_CALLBACK,callback); cvcamInit(); cvcamStart(); cvWaitKey(0); cvcamStop(); cvcamExit(); return 0; } // 在图像中画红色水平线 void callback(IplImage* image) { IplImage* image1 = image; int i,j; assert (image); for(i=0; iheight; i+=10) { for(j=(image1->widthStep)*i; j<(image1->widthStep)*(i+1); j+=image1->nChannels) { image1->imageData[j]= 0; image1->imageData[j+1] =(char)255; image1->imageData[j+2] = 0; } } }