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

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

?????

? 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);
   

??????????????????????????

?????

???????????????? 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);
   

???????????????????????????

?????????????

?? 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);
    
   

?????????????????????????????????????

????

??????????????????????????????? fillPoly ? drawContours ???????

?????????????????????????????????

OpenCV ????

??? OpenCV ??????????????????????????????? OpenCV ???????????????????????????????????????????OpenCV ????20??????????????

???????????????????????????????????? SLAM??????????????????????????????????????????+??/??+?????

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