How to transform a broken line into a simple line with the same length?

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Donghui Sun 2013-9-14

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https://ww2.mathworks.cn/matlabcentral/answers/87206-how-to-transform-a-broken-line-into-a-simple-line-with-the-same-length

Just as the question title shows, I want to convert a broken line into a line with same length.The example image is here.

http://image15-c.poco.cn/mypoco/myphoto/20130914/16/17432353320130914160340064.png

The image is skel of a object and is obtained by using the function bwmorph(, 'skel', Inf).The red star points in the image are the branch points. The yellow points denote the endpoints of the branches.

What should I do to turn the spine which has the red star points into line with same length and keep the relative position of the yellow points?

Any suggestion or clue?

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回答（1 个）

Image Analyst 2013-9-14

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https://ww2.mathworks.cn/matlabcentral/answers/87206-how-to-transform-a-broken-line-into-a-simple-line-with-the-same-length#answer_96748

Have you tried the "spur" option in bwmorph()?

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Image Analyst 2013-9-15

Upload a photo without annotation if you need me to show you.

Donghui Sun 2013-9-16

A big thanks in advance. As the original image are fits format which is only used widely in the solar image processing, I upload the .mat file rather than the original image at http://pan.baidu.com/share/link?shareid=1990596554&uk=2854878658. The password of extracting this .mat file is wb0h.

Look forward to your suggestion.

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