一个窗口显示多个视频.doc

#include #include #include #include #include void cvShowManyImages(char* title, int nArgs, .) / img - Used for getting the arguments IplImage *img; / DispImage - the image in which input images are to be copied IplImage *DispImage; int size; int i; int m, n; int x, y; / w - Maximum number of images in a row / h - Maximum number of images in a column int w, h; / scale - How much we have to resize the image float scale; int max; / If the number of arguments is lesser than 0 or greater than 12 / return without displaying if(nArgs 12) printf(Number of arguments too large.n); return; / Determine the size of the image, / and the number of rows/cols / from number of arguments else if (nArgs = 1) w = h = 1; size = 300; else if (nArgs = 2) w = 2; h = 1; size = 300; else if (nArgs = 3 | nArgs = 4) w = 2; h = 2; size = 300; else if (nArgs = 5 | nArgs = 6) w = 3; h = 2; size = 200; else if (nArgs = 7 | nArgs = 8) w = 4; h = 2; size = 200; else w = 4; h = 3; size = 150; / Create a new 3 channel image DispImage = cvCreateImage( cvSize(100 + size*w, 60 + size*h), 8, 3 ); / Used to get the arguments passed va_list args; va_start(args, nArgs); / Loop for nArgs number of arguments for (i = 0, m = 20, n = 20; i width; y = img-height; / Find whether height or width is greater in order to resize the image max = (x y)? x: y; / Find the scaling factor to resize the image scale = (float) ( (float) max / size ); / Used to Align the images if( i % w = 0 & m!= 20) m = 20; n+= 20 + size; / Set the image ROI to display the current image cvSetImageROI(DispImage, cvRect(m, n, (int)( x/scale ), (int)( y/scale ); / Resize the input image and copy the it to the Single Big Image cvResize(img, DispImage); / Reset the ROI in order to display the next image cvResetImageROI(DispImage); / Create a new window, and show the Single Big Image /cvNamedWindow( title, 1 ); cvShowImage( title, DispImage); /*cvWaitKey(0);*/ /cvDestroyWindow(title); / End the number of arguments va_end(args); / Release the Image Memory cvReleaseImage(&DispImage);int main(int argc,char *argv) CvCapture *capture; int i=0; if (argc=2) capture=cvCreateFileCapture(argv1); else printf(No video file input!n); return -1; IplImage *frame; cvNamedWindow(video,1); cvResizeWindow(video,700,660); CvFont timeFont,timeFont1; cvInitFont(&timeFont,CV_FONT_HERSHEY_COMPLEX,0.5f,0.5f,0,1,8); cvInitFont(&timeFont1,CV_FONT_HERSHEY_COMPLEX,0.5f,0.5f,0,1,8); char time125; memset(time1,0,25*sizeof(char); while (1) frame=cvQueryFrame( capture ); if (!frame) break; IplImage *frame_not=cvCreateImage(cvGetSize(frame),frame-depth,frame-nChannels); cvNot(frame,frame_not); time_t rawtime; struct tm * timeinfo; time ( &rawtime ); timeinfo = localtime ( &rawtime ); char *p=asctime(timeinfo); /p25n,24 for (i=0;idepth,1); IplImage *frame1=cvCreateImage(cvGetSize(frame),frame-depth,frame-nChannels); IplImage *frame_canny=cvCreateImage(cvGetSize(frame),frame-depth,1); IplImage *frame2=cvCreateImage(cvGetSize(frame),frame-depth,frame-nChannels); cvCvtColor(frame,frame_gray,CV_RGB2GRAY); cvCvtColor(frame_gray,frame1,CV_GRAY2BGR); cvCanny(frame_gray,frame_canny,20,75,3); cvCvtColor(frame_canny,frame2,CV_GRAY2BGR); cvPutText(frame,time1,cvPoint(0,15),&timeFont,CV_RGB(255,0,0); cvPutText(frame1,time1,cvPoint(0,15),&timeFont,CV_RGB(255,0,0); cvPutText(frame2,time1,cvPoint(0,15),&timeFont1,CV_RGB(255,0,0); cvPutText(frame_not,time1,cvPoint(0,15),&timeFont1,CV_RGB(255,0,0); cvShowManyImages(video,4,frame,frame_not,frame1,frame2); cvWaitKey(33); cvReleaseImage