基于OpenCV的視頻轉為圖像序列方法:
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 );}
測試數據為OpenCV自帶的視頻:Megamind.avi,可以在opencv/sources/samples/cpp/tutorial_code/HighGUI/video-input-psnr-ssim/video路徑下查找,共270幀圖像,運行結果部分截圖如下:
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