6주차 수업 끝

ch04/Video/main.cpp

@@ -0,0 +1,58 @@
+#include <iostream>
+#include "opencv2/opencv.hpp"
+
+int camera_in();
+int camera_in_video_out();
+
+int main() {
+	return camera_in_video_out();
+}
+
+int camera_in() {
+	cv::VideoCapture camera(0);
+	if (!camera.isOpened()) {
+		std::cerr << "camera.isopened()" << std::endl;
+		return 1;
+	}
+	cv::Mat img;
+	double fps = 1000 / camera.get(cv::VideoCaptureProperties::CAP_PROP_FPS);
+	std::cout << "\n\n" << fps << "\n\n";
+	while (true) {
+		camera >> img;
+		if (img.empty()) {
+			std::cerr << "img.empty()" << std::endl;
+			return 1;
+		}
+		cv::imshow("img", img);
+		if (cv::waitKey(fps) == 27)
+			break;
+	}
+	return 0;
+}
+
+int camera_in_video_out() {
+	cv::VideoCapture camera(0);
+	if (!camera.isOpened()) {
+		std::cerr << "camera.isopened()" << std::endl;
+		return 1;
+	}
+	cv::Mat img;
+	int w = cvRound(camera.get(cv::VideoCaptureProperties::CAP_PROP_FRAME_WIDTH));
+	int h = cvRound(camera.get(cv::VideoCaptureProperties::CAP_PROP_FRAME_HEIGHT));
+	double fps = camera.get(cv::VideoCaptureProperties::CAP_PROP_FPS);
+
+	cv::VideoWriter outputVideo("output.avi", cv::VideoWriter::fourcc('D', 'I', 'V', 'X'), fps, cv::Size(w, h));
+
+	while (true) {
+		camera >> img;
+		if (img.empty()) {
+			std::cerr << "img.empty()" << std::endl;
+			return 1;
+		}
+		outputVideo << ~img;
+		cv::imshow("img", img);
+		if (cv::waitKey(fps) == 27)
+			break;
+	}
+	return 0;
+}