How do i isolate the vertical lines in an image?

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N/A 2018-3-7
评论： N/A 2018-4-25
Good day, I am trying to isolate the vertical lines in an image to make the image show only the vertical lines present in the image.

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Arun Mathamkode
Arun Mathamkode 2018-3-20
You can use the imgradientxy function to find gradients along x and y axis. Since the vertical lines will have gradients along x direction, you can threshold the gradients along x direction to separate the vertical lines. For example, if I is the image
[gx gy]=imgradientxy(I);
VertLines=gx>950 % Choose a proper threshod
figure, imshow(VertLines,[]);

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