Opencv 视频转为图像序列的实现
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:
以上这篇Opencv 视频转为图像序列的实现就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持我们。
赞 (0)