MATLAB: How to compute centroidal distances

centroidal distancesImage Processing Toolbox

I wanted to compute centroidal distances, by calculating the distance is between the geometric centroid of the segmented object and the brightness centroid of the same.

% Is geometric centroid same as 
s = regionprops(BW,'centroid');

what is brightness centroid

Best Answer

I assume you mean regionprops(BW, I ,'WeightedCentroid') ? You need an intensity image I, to invoke that option.

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MATLAB: How can i separate all the connected regions in a binary image and display them individually.

Use bwlabel() and ismember

[labeledImage, numRegions] = bwlabel(binaryImage);
props = regionprops(labeledImage, 'Area')
% Compute all the areas.
allAreas = [props.Area]
% Display each blob in its own figure.
for k = 1 : numRegions
    thisRegion = ismember(labeledImage, k);
    figure;
    imshow(thisRegion);
    drawnow;
end

MATLAB: I am not getting the BoundingBox

See my Image Segmentation Tutorial where I demonstrate that: http://www.mathworks.com/matlabcentral/fileexchange/25157-image-segmentation-tutorial---blobsdemo--

Best Answer

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MATLAB: How can i separate all the connected regions in a binary image and display them individually.

MATLAB: I am not getting the BoundingBox

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