在视频的左上角动态显示帧数、参看帧率

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在视频的左上角动态显示帧数：

Mat current;int frameCount = 0;frameCount++;stringstream buf;buf << frameCount;string num = buf.str();//帧数//在图像左上角显示帧数putText(current, num, Point(20, 30), FONT_HERSHEY_SIMPLEX, 1, Scalar(0, 0, 255), 3);

//用opencv查看视频信息(视频的宽度、高度、帧率和总得帧数)

#include "stdafx.h"#include <cv.h>  #include <highgui.h>  int  main(int argc, char* argv[]){IplImage *nFrames = NULL;CvCapture* pCapture = NULL;if( !(pCapture = cvCaptureFromAVI("C:\\zcd.avi"))){fprintf(stderr, "Can not open camera.\n");return -1;}int frameH    = (int) cvGetCaptureProperty(pCapture, CV_CAP_PROP_FRAME_HEIGHT);  int frameW    = (int) cvGetCaptureProperty(pCapture, CV_CAP_PROP_FRAME_WIDTH);  int fps       = (int) cvGetCaptureProperty(pCapture, CV_CAP_PROP_FPS);  int numFrames = (int) cvGetCaptureProperty(pCapture, CV_CAP_PROP_FRAME_COUNT);  printf("vedio's \nwidth = %d\t height = %d\n video's fps = %d\t nums = %d", frameW, frameH, fps, numFrames);getchar();return 0;}

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