main.cpp
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// C++ program for the above approach #include <iostream> #include <opencv2/core/core.hpp> // Library to include for // drawing shapes #include <opencv2/highgui/highgui.hpp> #include <opencv2/imgproc.hpp> using namespace cv; using namespace std; // Driver Code int main(int argc, char** argv) { // Create a blank image of size // (500 x 500) with black // background (B, G, R) : (0, 0, 0) Mat image(500, 500, CV_8UC3, Scalar(0, 0, 0)); // Check if the image is created // successfully if (!image.data) { cout << "Could not open or find" << " the image"; return 0; } Point p1(0, 0), p2(100, 0); Point p3(200, 0), p4(500, 500); int thickness = 2; // Line drawn using 8 connected // Bresenham algorithm line(image, p1, p4, Scalar(255, 0, 0), thickness, LINE_8); // Line drawn using 4 connected // Bresenham algorithm line(image, p2, p4, Scalar(0, 255, 0), thickness, LINE_4); // Antialiased line line(image, p3, p4, Scalar(0, 0, 255), thickness, LINE_AA); // Show our image inside window imshow("Output", image); waitKey(0); return 0; } |