Hanna's profile - activity

yes i have: http://code.opencv.org/issues/3989

ellipse_ver.png

see image attached.

the code:

std::string filename = "ellipse_ver.png"; 

cv::Mat image = cv::imread(filename, CV_LOAD_IMAGE_GRAYSCALE);

if (image.empty()){

    return -1;

}

std::vector<std::vector<cv::Point>> contours;

cv::findContours(image.clone(), contours, CV_RETR_EXTERNAL, CV_CHAIN_APPROX_NONE);

cv::RotatedRect r = cv::fitEllipse(contours.at(0));

hello there,

if I want to fit the ellipse for an input image which is already an exact ellipse (rotated 180° to x-axis - that means height=vertical > width=horizontal), then the opencv function fitEllipse returns the correct angle (=180) but the size is totally wrong.

e.g. for an ellipse with width=43, height=86 - it returns width=51, height=57

what is wrong here?

Cheers, Hanna