How to get the centerline of a binary region

조회 수: 41 (최근 30일)
Sam Ade
Sam Ade 2021년 10월 17일
댓글: Woj 2023년 1월 11일
I have a binarize image below, I am trying to find the centerline of the image such as that in red on the binarize image. I did use the bskel function but get branches. I am hoping to elimated (prone or remove) all branches.
Any suggestions will be most appreciated. Any other way to do this another than using bskel will be great too.

채택된 답변

DGM
DGM 2021년 10월 17일
There's this.
A = imread('arc.png')>128;
B = bwmorph(A,'skel',inf); % skeletonize
B = imfill(B,'holes'); % get rid of any tiny closed paths
B = bwmorph(B,'skel',inf); % finish skeletonizing
% remove endpoints until only two are left
while true
e = bwmorph(B,'endpoints');
if nnz(e)>2
B = B & ~e;
else
break;
end
end
imshow(B)

추가 답변 (1개)

KSSV
KSSV 2021년 10월 17일
You can get the indices of white pixels using find and to the data you can try fitting a line or quadratic equation using polyfit.
[y,x] = find(I) ;
p = polyfit(x,y,2) ;
xi = linspace(min(x),max(x)) ;
yi = polyval(p,xi) ;
plot(X,y,'.k')
hold on
plot(xi,yi,'r')
  댓글 수: 5
Matheus Ferreira
Matheus Ferreira 2022년 6월 8일
Great, thank you! Worked perfect!
Woj
Woj 2023년 1월 11일
Hi. Sry for the stupid question, but im very very new to matlab. I have exactly the same problem, but i dont understand how do i find the white pixels?
thank you

댓글을 달려면 로그인하십시오.

카테고리

Help CenterFile Exchange에서 Images에 대해 자세히 알아보기

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by