1 #include <iostream> 2 #include <opencv2/opencv.hpp> 3 using namespace std; 4 using namespace cv; 5 int main() 6 { 7 Mat img = imread("e.bmp"); 8 imshow("原图", img); 9 char tem[50]; 10 sprintf(tem, "%s","Where are you?"); 11 //img原图像,tem输出内容,Point输出位置,0.9文字大小Scalar()颜色,1字体粗细, 12 putText(img, tem, Point(40, 250), FONT_HERSHEY_SIMPLEX, 0.9, Scalar(255, 255, 200),1,3);//在图片上写文字 13 namedWindow("效果图"); 14 imshow("效果图", img); 15 waitKey(); 16 return 0; 17 }