Opencv 视频转为图像序列

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本系列文章由 @YhL_Leo 出品，转载请注明出处。
文章链接： http://blog.csdn.net/yhl_leo/article/details/50283303

基于OpenCV的视频转为图像序列方法：

基于C++版本

#include <iostream>#include "cv.h"#include "opencv2/opencv.hpp"using namespace std;using namespace cv;void main(){    VideoCapture cap("C:\\Users\\Leo\\Desktop\\Megamind.avi");    if ( !cap.isOpened() )    {        return ;    }    int imgIndex(0);    for ( ; ; )    {        Mat frame;        cap >> frame;        if ( frame.empty() )        {            break;        }        char* imageSaveName = new char[64];        sprintf( imageSaveName, "C:\\Users\\Leo\\Desktop\\new\\%05d.jpg", imgIndex );        imwrite( imageSaveName, frame );        delete[] imageSaveName;        imgIndex++;    }    cout << "total frames: " << imgIndex << endl;}

基于C版本

#include <iostream>#include "cv.h"#include "opencv2/opencv.hpp"using namespace std;using namespace cv;void main(){    // video read    CvCapture *capture = cvCreateFileCapture("C:\\Users\\Leo\\Desktop\\Megamind.avi");    IplImage *frame;    int imgIndex(0);    while(1)    {        frame = cvQueryFrame(capture);        if ( !frame )        {            break;        }        char* imageSaveName = new char[64];        sprintf( imageSaveName, "C:\\Users\\Leo\\Desktop\\new\\%05d.jpg", imgIndex );        cvSaveImage( imageSaveName, frame );        delete[] imageSaveName;        imgIndex++;    }    cout << "total frames: " << imgIndex << endl;    cvDestroyWindow( "VideoImage" );    cvReleaseCapture( &capture );    cvReleaseImage( &frame );}

测试数据为OpenCV自带的视频：Megamind.avi，可以在opencv\sources\samples\cpp\tutorial_code\HighGUI\video-input-psnr-ssim\video路径下查找，共270帧图像，运行结果部分截图如下：

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