6주차 수업 끝

ch06/Arithmetic/main.cpp

@@ -0,0 +1,82 @@
+#include <iostream>
+#include "opencv2/opencv.hpp"
+
+using namespace std;
+using namespace cv;
+
+void arithmetic() {
+	Mat src1 = imread("..\\..\\resources\\images\\lenna256.bmp", IMREAD_GRAYSCALE);
+	resize(src1, src1, Size(256, 256));
+	Mat src2 = imread("..\\..\\resources\\images\\square.bmp", IMREAD_GRAYSCALE);
+	resize(src2, src2, Size(256, 256));
+
+	imshow("src1", src1);
+	imshow("src2", src2);
+
+	Mat dst1, dst2, dst3, dst4;
+	add(src1, src2, dst1);
+	addWeighted(src1, 0.5, src2, 0.5, 0, dst2);
+	subtract(src1, src2, dst3);
+	absdiff(src1, src2, dst4);
+
+	imshow("dst1", dst1);
+	imshow("dst2", dst2);
+	imshow("dst3", dst3);
+	imshow("dst4", dst4);
+	waitKey();
+}
+
+void add() {
+	Mat img1 = imread("..\\..\\resources\\images\\lenna.bmp", IMREAD_GRAYSCALE);
+	resize(img1, img1, Size(256, 256));
+	Mat img2 = imread("..\\..\\resources\\images\\Cameraman256.bmp", IMREAD_GRAYSCALE);
+
+	Mat addimg;
+
+	add(img1, img2, addimg, noArray(), -1);
+
+	imshow("img1", img1);
+	imshow("img2", img2);
+	imshow("addimg", addimg);
+
+	waitKey();
+	destroyAllWindows();
+}
+
+bool equls(Mat &left, Mat &right) {
+	for (int i=0; i < left.cols; i++)
+		for (int j=0; j < left.rows; j++)
+			if (left.at<uchar>(j, i) - right.at<uchar>(j, i))
+				return false;
+	return true;
+}
+
+void _absdiff() {
+	VideoCapture video;
+	video.open("..\\..\\resources\\images\\vtest.avi");
+	if (!video.isOpened())
+		return;
+	Mat frame, previous_frame;
+
+	video >> frame;
+	previous_frame = frame;
+
+	double fps = video.get(CAP_PROP_FPS);
+
+	while (!frame.empty()) {
+		video >> frame;
+		imshow("frame", frame);
+		Mat diff;
+		if (equls(previous_frame, frame)) {
+			absdiff(frame, previous_frame, diff);
+			imshow("diff", diff);
+		}
+		previous_frame = frame;
+		waitKey(cvRound(1000/fps));
+	}
+}
+
+int main() {
+	_absdiff();
+	return EXIT_SUCCESS;
+}