6주차 수업 끝

ch07/noise/main.cpp

@@ -0,0 +1,52 @@
+#include <iostream>
+#include "opencv2/opencv.hpp"
+
+using namespace std;
+using namespace cv;
+
+void noise_gaussian() {
+	Mat src = imread("..\\..\\resources\\images\\lenna.bmp", IMREAD_GRAYSCALE);
+
+	imshow("src", src);
+
+	for (int stddev = 10; stddev <= 100; stddev+=10) {
+		Mat noise(src.size(), CV_32SC1);
+		randn(noise, 0, stddev);
+
+		Mat dst;
+		add(src, noise, dst, Mat(), CV_8U);
+
+		string text = format("stddev = %d", stddev);
+		putText(dst, text, Point(10, 30), FONT_HERSHEY_SIMPLEX, 1.0, Scalar(255), 1, LINE_AA);
+
+		imshow(text, dst);
+		waitKey(0);
+	}
+	destroyAllWindows();
+}
+
+void filter_bilateral() {
+	Mat src = imread("..\\..\\resources\\images\\lenna.bmp", IMREAD_GRAYSCALE);
+
+	Mat noise(src.size(), CV_32SC1);
+	randn(noise, 0, 5);
+	add(src, noise, src, Mat(), CV_8U);
+
+	Mat dst1;
+	GaussianBlur(src, dst1, Size(), 5);
+
+	Mat dst2;
+	bilateralFilter(src, dst2, -1, 10, 5);
+
+	imshow("src", src);
+	imshow("dst1", dst1);
+	imshow("dst2", dst2);
+
+	waitKey(0);
+	destroyAllWindows();
+}
+
+int main() {
+	filter_bilateral();
+	return EXIT_SUCCESS;
+}