how to copy circle for a new image using imfindcircle?

i have this code and i need to copy the circle part of the image to a new image and for the life of me i cant figure out a way to do it.. thanks in advance!!

A = imread('Speed.jpg');


% Resize the image
rowSZ = size(A, 1);
colSZ = size(A, 2);
rows = 250*(colSZ/rowSZ);
J = imresize(A, [rows 250]);
% Show image
imshow(J)

% Set circle radius to find
Rmin = 50;
Rmax = 100;
% Find circles within the raidus
[centers, radii, metric] = imfindcircles(J,[Rmin Rmax]);

% Show circle on the image
viscircles(centers, radii,'EdgeColor','b');

Answer 1

[Devineni Aslesha]

Use the code below to copy circle for a new image using 'imfindcircle'.

theta=0:1:360;
r=round(centers(1,1) + radii*sin(theta));
c=round(centers(1,2) + radii*cos(theta));
for j=1:length(r)
          B(c(j),r(j),:)=[0 0 255];
end
figure(2)
imshow(B)

For more information, refer the following link.

https://www.mathworks.com/matlabcentral/answers/260958-how-to-save-image-of-the-result-imfindcircle