How to pass from a set of points to lines interpolating them?
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Hi everyone! I have obtained the following skeletonization
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1029925/image.jpeg)
However, if you zoom, you see that the pink lines are not lines but they are series of rectangles that contain points, like you can see in this figure here below.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1029930/image.jpeg)
I would like to know how to pass from these points (contained in the rectangles) to approximate lines that trace the skeletonization in pink (Maybe there is an approximative interpolation that can do this (?)). Could anyone help me? Thanks in advance
4 commentaires
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Matt J
le 12 Juin 2022
Modifié(e) : Matt J
le 12 Juin 2022
Image=load('codice_opcode.mat').out;
B=bwboundaries(Image); B(1)=[];
imagesc(Image); colormap(gray); axis image;
hold on
for i=1:numel(B)
[x,y]=cellBoundary(Image,B{i});
plot(x,y,'r','LineWidth',2)
end
hold off
zoom(4)
function [x,y]=cellBoundary(BW,b)
sz=size(BW);
Z=false(sz);
Z( sub2ind(sz,b(:,1),b(:,2)) )=1;
Z=imdilate(Z,ones(3))&BW;
b=bwboundaries(Z,'noholes');
[x,y]=deal(b{1}(:,2), b{1}(:,1));
end
4 commentaires
Matt J
le 14 Juin 2022
Just put the output of cellBoundary somewhere convenient, e.g.,
[x{i},y{i}]=cellBoundary(Image,B{i});
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