MATLAB: Reshaping Blobs in a Binary

binaryblob detectionimage processingImage Processing Toolbox

When processing an image with low contrast, I inevitably will distort some of the shapes when I threshold the grayscale image and convert it to binary.

Is there any way to reshape blobs after I have done the conversion to binary? I know the shapes should all be circular, but most have tails or look elongated.

Best Answer

Regarding your latest comment...For each blob, get the EquivDiameter and the centroid, then call rectangle() to display a circle in the overlay at the centroid location with a diameter of EquivDiameter.

Related Solutions

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: 1. How do i get Centroid and its corresponding Equivdiameter when regionprops is used

stats = regionprops(TheImage, 'Centroid', 'EquivDiameter');
stats(1).Centroid
stats(1).EquivDiameter

Best Answer

Related Solutions

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

MATLAB: 1. How do i get Centroid and its corresponding Equivdiameter when regionprops is used

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