OpenCV ????????????

? OpenCV ??????????????????????????????????????????????????????? polylines ??? thickness ?????????????????????????????????????????????????????????????? OpenCV ???????????????

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? OpenCV ??polylines ????????????????????? thickness ?????????????????

? thickness ?????????????????

? thickness ?????????????????????

???? polylines ?????????????????????????????????????????????

`polylines` ????

??????? polylines ?????????????

Mat canvas = Mat::zeros(Size(512, 512), CV_8UC3);int w = canvas.cols;int h = canvas.rows;Point p1(100, 100);Point p2(300, 150);Point p3(300, 350);Point p4(250, 450);Point p5(50, 450);std::vector
   
     pts;pts.push_back(p1);pts.push_back(p2);pts.push_back(p3);pts.push_back(p3);pts.push_back(p4);pts.push_back(p5);polylines(canvas, pts, true, Scalar(0, 255, 0), 1, LINE_8, 0);

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???????????????? fillPoly ?????????? polylines ???????????????????fillPoly ?????? polylines ????????????? fillPoly ??? thickness ? isClosed ???

`fillPoly` ????

??????? fillPoly ?????????????

Mat canvas = Mat::zeros(Size(512, 512), CV_8UC3);int w = canvas.cols;int h = canvas.rows;Point p1(100, 100);Point p2(300, 150);Point p3(300, 350);Point p4(250, 450);Point p5(50, 450);std::vector
   
     pts;pts.push_back(p1);pts.push_back(p2);pts.push_back(p3);pts.push_back(p3);pts.push_back(p4);pts.push_back(p5);fillPoly(canvas, pts, Scalar(255, 0, 255), 8, 0);polylines(canvas, pts, true, Scalar(0, 255, 255), 2, LINE_8, 0);

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?? fillPoly ???OpenCV ???? drawContours ??????????? fillPoly ??????????????????????????drawContours ??????????

image??????????

contours??????????

contourIdx???????????????? -1 ?????????

color??????

thickness???????????????????

`drawContours` ????

??????? drawContours ????????????????

Mat canvas = Mat::zeros(Size(512, 512), CV_8UC3);int w = canvas.cols;int h = canvas.rows;Point p1(100, 100);Point p2(300, 150);Point p3(300, 350);Point p4(250, 450);Point p5(50, 450);std::vector
   
    
     > contours;contours.push_back(pts);drawContours(canvas, contours, 0, Scalar(0, 0, 255), -1, 8);drawContours(canvas, contours, 0, Scalar(255, 0, 255), 2, 8);

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