图片视频相互转换

xiaoxiao2021-02-28  146

配置opencv3.0+VS2013(其他版本更改include文件即可) 一、图片转换为视频

#include "stdAfx.h" #include <iostream> #include <opencv2/highgui/highgui.hpp> #include <opencv2/imgproc/imgproc.hpp> using namespace cv; using namespace std; int main() { // 定义相关参数 const int num = 220;//图片总数 char fileName[50]; char windowName[50]; cv::Mat srcImage; char* outfile = "E:\\View1.avi";//输出视频路径 double fps = 15; CvSize size = cvSize(768,576); //创建输出视频文件 CvVideoWriter* Save_result = NULL; Save_result = cvCreateVideoWriter(outfile, CV_FOURCC('X', 'V', 'I', 'D'), fps, size, 1); IplImage* dstImg = cvCreateImage(size, IPL_DEPTH_8U, 3);//创建要保存的图像 for (int i = 1; i <= num; i++) { // sprintf读入指定路径下图片序列 sprintf_s(fileName, "F:\\毕业相关的程序\\测试数据集\\View_001\\1 (%d).jpg", i);//文件名格式为1(11).jpg格式,如需更改,直接做替换 sprintf_s(windowName, "video"); // 按照图像文件名读取 srcImage = cv::imread(fileName); if (!srcImage.data) { std::cout << "No data!" << std::endl; return -1; } dstImg = &IplImage(srcImage); cvWriteFrame(Save_result, dstImg); cv::namedWindow(windowName); cv::imshow(windowName, srcImage); waitKey(10); std::cout << "NO: " << i << std::endl; /* 该处可以添加处理步骤 */ } cvReleaseVideoWriter(&Save_result); cvDestroyWindow(windowName);//必须释放VideoWriter、销毁窗口,否则视频无法播放 cv::waitKey(0); return 0; }

二、视频转换成图片

CvCapture* capture = cvCaptureFromAVI("F:\\毕业论文相关\\机场视频\\安检区外北侧.ts"); int i = 0; IplImage* img = 0; char image_name[50]; cvNamedWindow("实时视频"); //读取和显示 while (1) { img = cvQueryFrame(capture); //获取一帧图片 if (img == NULL) break; cvShowImage("实时视频", img); //将其显示 char key = cvWaitKey(20); sprintf_s(image_name, "%s%d%s","F:\\毕业论文相关\\机场视频\\density_img_", ++i, ".jpg");//保存的图片名 if (i%5==0) { cvSaveImage(image_name, img); //保存一帧图片 } } cvReleaseCapture(&capture); cvDestroyWindow("实时视频");
转载请注明原文地址: https://www.6miu.com/read-44784.html

最新回复(0)