Display the image with the lineToBorderPoints command?

Question

Lightisthenight 2019-1-11

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/439407-display-the-image-with-the-linetoborderpoints-command

评论： Alireza Ahani 2021-2-11

epilines.png

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

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Answer 1

Walter Roberson 2019-1-11

2
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https://ww2.mathworks.cn/matlabcentral/answers/439407-display-the-image-with-the-linetoborderpoints-command#answer_356060

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