Display the image with the lineToBorderPoints command?

I tried to use the Matlab command 'lineToBorderPoints', but it only displays the epilines in a diagram and not in my actual image that i wanted. As shown in the image in the attachment. How can I fix this issue? I did the exact same as in the documentation.

F = stereoParams.FundamentalMatrix;
epiLines_left = epipolarLine(transpose(F),centroids_right);  % centroids_right is the point i want to intersect
subplot(1,2,1);
hold on
points = lineToBorderPoints(epiLines_left,size(bw_left));  % bw_left and bw_right are the images 
line(points(:,[1,3])',points(:,[2,4])');
hold off

epiLines_right = epipolarLine(F,centroids_left);
subplot(1,2,2);
hold on
ids = transpose(1:size(centroids_left,1));
points = lineToBorderPoints(epiLines_right,size(bw_right));
line(points(:,[1,3])',points(:,[2,4])');
hold off

Answer 1

[Walter Roberson]

display the image, and hold on, and plot, and hold off, if the requirements are to display the lines over the image .

If you need to build a new image with the lines in it then after you have called the function to calculate the points then use the points as information for computer vision insertShape

[Lightisthenight]

Thanks a lot!

[Alireza Ahani]

Hi @Walter Roberson

thank you for your answer,

May I please have your suggestion on this problem too?

https://www.mathworks.com/matlabcentral/answers/742087-weird-3d-points-from-stereo-reconstruction?s_tid=prof_contriblnk

Thank you anyway

[Walter Roberson]

@Alireza Ahani Sorry, I do not have experience with that topic.

[Alireza Ahani]

@Walter RobersonThank you anyway 🙏