yes，sir，may be use image segment to get the edge，and then use fit_ellipse to get the parameters，such as
im = imread('https://www.mathworks.com/matlabcentral/answers/uploaded_files/1003500/image.jpeg');
bw = ~im2bw(im);
bw = imclearborder(bw);
bw = bwareafilt(bw,1);
bw2 = imclose(bw, strel('disk', 19));
bw2 = imfill(bw2,'holes');
bw2 = imclose(bw2, strel('disk', 100));
be = bwperim(bw2);
figure; imshow(be);
then，we can get the edge location，and get ellipse
a: 300.8214
b: 293.0813
phi: 0.3815
X0: 69.8848
Y0: 941.7797
X0_in: 415.5356
Y0_in: 848.0348
long_axis: 601.6429
short_axis: 586.1626
status: ''
