Opencv 視訊轉為影象序列的實現
阿新 • • 發佈:2020-01-07
基於OpenCV的視訊轉為影象序列方法:
基於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; }
基於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,imgIndex ); cvSaveImage( imageSaveName,frame ); delete[] imageSaveName; imgIndex++; } cout << "total frames: " << imgIndex << endl; cvDestroyWindow( "VideoImage" ); cvReleaseCapture( &capture ); cvReleaseImage( &frame ); }
測試資料為OpenCV自帶的視訊:Megamind.avi,可以在opencv\sources\samples\cpp\tutorial_code\HighGUI\video-input-psnr-ssim\video路徑下查詢,共270幀影象,執行結果部分截圖如下:
以上這篇Opencv 視訊轉為影象序列的實現就是小編分享給大家的全部內容了,希望能給大家一個參考,也希望大家多多支援我們。