OpenCV_讀視頻檔案、儲存視頻檔案

 

OpenCV提供了讀視頻的類和函數，同樣也提供了將多張幀映像或圖片產生一個視頻的類和函數。

詳細的介紹見：

http://opencv.willowgarage.com/wiki/documentation/cpp/highgui/VideoWriter

http://opencv.willowgarage.com/wiki/VideoCodecs

 

 

下面是一段讀視頻、處理視訊框架、寫/儲存視頻的簡單範例程式碼：

 

 

//  讀視頻檔案、儲存視頻檔案//  Author：www.icvpr.com//  Blog：  http://blog.csdn.net/icvpr #include <iostream>#include <string>#include <opencv2/opencv.hpp>int main(int argc, char** argv){std::string strInputName = "input.avi" ;std::string strOutputeName = "output.avi" ;// Input videocv::VideoCapture capture(strInputName) ;if( !capture.isOpened() ){std::cout<< "open video error happened" << std::endl ;return -1;}// Info of output videoint codec = static_cast<int>(capture.get(CV_CAP_PROP_FOURCC)) ;int frameRate = capture.get(CV_CAP_PROP_FPS) ;cv::Size frameSize = cv::Size((int)capture.get(CV_CAP_PROP_FRAME_WIDTH),  (int)capture.get(CV_CAP_PROP_FRAME_HEIGHT)) ;cv::VideoWriter writer ;writer.open(strOutputeName, CV_FOURCC('D','I','V','X') , frameRate, frameSize, true) ;if ( !writer.isOpened()){std::cout<< "cannot open the output video file for write" << std::endl ;return -1 ;}// process framecv::Mat frame ;while ( capture.read(frame) ){// doSomething                  // save framewriter.write(frame) ;// display cv::imshow("video", frame) ;if ( cv::waitKey(frameRate) > 0)  // press any key to exit{break ;}}return 0 ;}

-------------------------------------------------------
< 轉載請註明：http://blog.csdn.net/icvpr >