How can I get all the cells connected to each individual cells of a Voronoi diagram?

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Peyman Obeidy
Peyman Obeidy 2018-8-27
评论： HG 2021-6-14
How can I get all the cells connected to each individual cells of a Voronoi diagram?
I need this to get access to each connected cells while going through all the cells in the image. For example for cell 30 in (fig1), Frist I need to find all the connected object to this cells (e.g. 27,34,42…).
Then I need to call them in a pair (like fig 2) and use them as the mask (m file is attached) over the original image.
I have tried finding closest neighbor (nearestneighbour, good for center points but not the binary objects) and connected regions(bwconncomp) function. I would appreciate getting some advice.
% find the connected objects
[label,n] = bwlabel(maskofVron4Inve);
Bdum=0;
%imshow(label2rgb(label));
for j=1%: max(max (n)) %or NumMask
clearvars 'Cells_ROI_mask' 'totalNoArea' 'Cell_ROI_prop' 'OneByOneLabels' 'BC'
% get each label instead of region of intrest
each_ROI=(label==j);
mask_em = bwareaopen(each_ROI, 40);
%imshow(OneByOneLabels3);
% SegImofFibArea=OneByOneLabels3.*BW_FibMask;
% ImFibMaskinOneRow=sum(SegImofFibArea);
% get the blood ves area and filter its location based on the fib mask
%CenterofVels=(OneByOneLabels3).*(BW_outROIfrombloodV);%BW_outROIfrombloodV2
% ImBloodVesMaskinOneRow=sum(CenterofVels);
end

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采纳的回答

Peyman Obeidy
Peyman Obeidy 2018-8-28
Final answer :
I hope this will be helpful.
[label,n] = bwlabel(maskofVron4Inve);
stats = regionprops(label,'Area','BoundingBox','Centroid','Eccentricity','EquivDiameter','Perimeter');%'WeightedCentroid')
stats2Struct=struct2table(stats);
CenterXY=stats2Struct.Centroid(:,:);
for i=1:length(CenterXY)
clearvars nN2
CenterXYasRef=stats2Struct.Centroid(i,:);
[nN,dis] = knnsearch(CenterXY,CenterXYasRef,'k',5);
%sort the distances;
%// Sort the distances
Make_Dis_Tab(:,1)=nN;
Make_Dis_Tab(:,2)=dis;
indx_dis=find(Make_Dis_Tab(:,2)>50 & Make_Dis_Tab(:,2)<200);
Make_Dis_Tab2=Make_Dis_Tab(indx_dis,:);
nN2=Make_Dis_Tab2(:,1);
dis2=Make_Dis_Tab2(:,2);
%// Get the indices of the closest distances
hold on
%end
imshow(Im1);hold on
scatter(CenterXY(:,1),CenterXY(:,2))
plot(stats2Struct.Centroid(i,1), stats2Struct.Centroid(i,2),'y--*','MarkerSize',15);
hold on
line(CenterXY(nN2,1),CenterXY(nN2,2),'color','y','marker','o','linestyle','none','markersize',10)
%waitfor()
pause(1.2);
close
end

更多回答（1 个）

KSSV
KSSV 2018-8-27
Have a look on knnserch. YOu can pick up the 'k' number of nearest neighbors for a given point.
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Peyman Obeidy
Peyman Obeidy 2018-8-28
This is still not exactly what I want.
[label,n] = bwlabel(maskofVron4Inve);
stats = regionprops(label,'Area','BoundingBox','Centroid','Eccentricity','EquivDiameter','Perimeter');%'WeightedCentroid')
stats2Struct=struct2table(stats);
CenterXY=stats2Struct.Centroid(:,:);
for i=1;
CenterXYasRef=stats2Struct.Centroid(i,:);
[nN,dis] = knnsearch(CenterXY,CenterXYasRef,'k',5);
end
imshow(Im1);hold on
scatter(CenterXY(:,1),CenterXY(:,2))
hold on
line(CenterXY(nN,1),CenterXY(nN,2),'color','y','marker','o','linestyle','none','markersize',10)

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