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這裏我找到了找到橢圓的所有x,y座標的方法,但我需要座標和角度值。如何使用擬合橢圓函數及其角度獲取座標點(opencv)
代碼
cv::Mat binaryImg;
cv::threshold(grayImg, binaryImg, 100, 255, cv::THRESH_BINARY);
std::vector<std::vector<cv::Point> > contours;
findContours(binaryImg, contours, CV_RETR_TREE, CV_CHAIN_APPROX_NONE);
for(size_t i = 1; i < contours.size(); i++) {
std::vector<CvPoint> points;
if(contours[i].size() >= 5) {
cv::RotatedRect Ellipse = fitEllipse(contours[i]);
majoraxis = Ellipse.size.height;
minoraxis = Ellipse.size.width;
angle = Ellipse.angle;
xcenter=Ellipse.center.x;
ycenter=Ellipse.center.y;
for(unsigned int i=0;i<contours.size();i++){
for(unsigned int j=0;j<contours[i].size();j++)
{
cout << "Point(x,y)=" << contours[i][j].x << "," << contours[i][j].y << endl;
}}
這裏我的形象
上面的代碼找到輪廓的X,Y座標點,但我需要的角度中心point.And它們的座標點