视频逐帧分割为图片保存的代码-opencv

#include <iostream> #include <windows.h> #include <opencv2/core/core.hpp> #include <opencv2/highgui/highgui.hpp> #include <opencv2/imgproc/imgproc.hpp> #include <opencv/cv.h> using namespace cv; using namespace std; int main(int argc, char **argv) { Mat srcImg3, grayImg; Mat srcImg7,srcImg8,srcImg9,srcImg10,srcImg11; //视频文件路径 string filename3 = "D:/C/视频/视频/3/3.mp4"; string filename7 = "D:/C/视频/视频/7/7.mp4"; string filename8 = "D:/C/视频/视频/8/8.mp4"; string filename9 = "D:/C/视频/视频/9/9.mp4"; string filename10 = "D:/C/视频/视频/10/10.mp4"; string filename11 = "D:/C/视频/视频/11/11.mp4"; VideoCapture cap3; VideoCapture cap7,cap8,cap9,cap10,cap11; cap3.open(filename3); cap7.open(filename7); cap8.open(filename8); cap9.open(filename9); cap10.open(filename10); cap11.open(filename11); cap3 >> srcImg3; cap7 >> srcImg7; cap8 >> srcImg8; cap9 >> srcImg9; cap10 >> srcImg10; cap11 >> srcImg11; //用于调整保存图像的尺寸 int Imgw = 840; int Imgh = 720; int countNums = 0; //保存图片的路径 char imagename1[20]; char imagename2[20]; char imagename3[20]; char imagename4[20]; char imagename5[20]; char imagename6[20]; while (cap3.isOpened()) { countNums++; cap3 >> srcImg3; if (srcImg3.empty()) break; //可能需要对保存图像进行的处理 resize(srcImg3, srcImg3, cv::Size(Imgw, Imgh)); //cvtColor(srcImg, grayImg, CV_BGR2GRAY); imshow("srcImg3", srcImg3); waitKey(1); //当前为保存偶数帧，保存条件可以修改 if (countNums % 2 == 0) { //路径可以使绝对路径，也可以是相对路径 sprintf(imagename1, "D:/C/视频/视频/3/%d.jpg", countNums); imwrite(imagename1, srcImg3); } } while (cap7.isOpened()) { countNums++; cap7 >> srcImg7; if (srcImg7.empty()) break; //可能需要对保存图像进行的处理 resize(srcImg7, srcImg7, cv::Size(Imgw, Imgh)); //cvtColor(srcImg, grayImg, CV_BGR2GRAY); imshow("srcImg7", srcImg7); waitKey(1); //当前为保存偶数帧，保存条件可以修改 if (countNums % 2 == 0) { //路径可以使绝对路径，也可以是相对路径 sprintf(imagename2, "D:/C/视频/视频/7/%d.jpg", countNums); imwrite(imagename2, srcImg7); } } while (cap8.isOpened()) { countNums++; cap8 >> srcImg8; if (srcImg8.empty()) break; //可能需要对保存图像进行的处理 resize(srcImg8, srcImg8, cv::Size(Imgw, Imgh)); //cvtColor(srcImg, grayImg, CV_BGR2GRAY); imshow("srcImg8", srcImg8); waitKey(1); //当前为保存偶数帧，保存条件可以修改 if (countNums % 2 == 0) { //路径可以使绝对路径，也可以是相对路径 sprintf(imagename3, "D:/C/视频/视频/8/%d.jpg", countNums); imwrite(imagename3, srcImg8); } } while (cap9.isOpened()) { countNums++; cap9 >> srcImg9; if (srcImg9.empty()) break; //可能需要对保存图像进行的处理 resize(srcImg9, srcImg9, cv::Size(Imgw, Imgh)); //cvtColor(srcImg, grayImg, CV_BGR2GRAY); imshow("srcImg9", srcImg9); waitKey(1); //当前为保存偶数帧，保存条件可以修改 if (countNums % 2 == 0) { //路径可以使绝对路径，也可以是相对路径 sprintf(imagename4, "D:/C/视频/视频/9/%d.jpg", countNums); imwrite(imagename4, srcImg9); } } while (cap10.isOpened()) { countNums++; cap10 >> srcImg10; if (srcImg10.empty()) break; //可能需要对保存图像进行的处理 resize(srcImg10, srcImg10, cv::Size(Imgw, Imgh)); //cvtColor(srcImg, grayImg, CV_BGR2GRAY); imshow("srcImg10", srcImg10); waitKey(1); //当前为保存偶数帧，保存条件可以修改 if (countNums % 2 == 0) { //路径可以使绝对路径，也可以是相对路径 sprintf(imagename5, "D:/C/视频/视频/10/%d.jpg", countNums); imwrite(imagename5, srcImg10); } } while (cap11.isOpened()) { countNums++; cap11 >> srcImg11; if (srcImg11.empty()) break; //可能需要对保存图像进行的处理 resize(srcImg11, srcImg11, cv::Size(Imgw, Imgh)); //cvtColor(srcImg, grayImg, CV_BGR2GRAY); imshow("srcImg11", srcImg11); waitKey(1); //当前为保存偶数帧，保存条件可以修改 if (countNums % 2 == 0) { //路径可以使绝对路径，也可以是相对路径 sprintf(imagename6, "D:/C/视频/视频/11/%d.jpg", countNums); imwrite(imagename6, srcImg11); } } return 0; }