과제 세이브

Homework/edge/main.cpp

@@ -0,0 +1,41 @@
+#include <iostream>
+#include "opencv2/opencv.hpp"
+
+int main() {
+	cv::VideoCapture camera(0);
+	if (!camera.isOpened()) {
+		std::cerr << "isOpened()" << std::endl;
+		return EXIT_FAILURE;
+	}
+	std::uint32_t fps = camera.get(cv::CAP_PROP_FPS);
+	cv::Mat src;
+
+	while (cv::waitKey(1000 / fps) != 27) {
+		camera >> src;
+		if (src.empty()) break;
+		cv::imshow("preview", src);
+	}
+	cv::cvtColor(src, src, cv::COLOR_BGR2GRAY);
+
+	cv::Mat dx, dy, fmag, mag, phase;
+
+	cv::Sobel(src, dx, CV_32FC1, 1, 0);
+	cv::Sobel(src, dy, CV_32FC1, 0, 1);
+
+	cv::magnitude(dx, dy, fmag);
+	fmag.convertTo(mag, CV_8UC1);
+
+	cv::phase(dx, dy, phase, true);
+	cv::normalize(phase, phase, 0, 255, cv::NORM_MINMAX);
+	phase.convertTo(phase, CV_8UC1);
+
+	cv::Mat edge = mag > 150;
+
+	cv::imshow("src", src);
+	cv::imshow("mag", mag);
+	cv::imshow("edge", edge);
+	cv::imshow("phase", phase);
+
+	cv::waitKey();
+	cv::destroyAllWindows();
+}