opencv 圖像上畫矩形框

1.Mat src = imread(「0225_(956,1864)(1756,2047).jpg」);//輸入圖像 2.Rect rect(fnl_rect1.at(0,0), fnl_rect1.at(0, 1), fnl_rect1.at(0, 2), fnl_rect1.at(0, 3));//左上座標（x,y）和矩形的長(x)寬(y)//定義框的性質 3.cv::rectangle(s

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