MATLAB: How to measure distance between corners

distance measureimage processingImage Processing Toolbox

I have detected some corners in labeled images,how can I measure vertical distance between corners,forexample plot a line at the top corner of each labeled image and measure the vertical difference to each other

Best Answer

Just measure the bounding box with regionprops. A full demo is given in my Image Segmentation Tutorial: http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862

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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: How to plot the diameters of an irregularly shaped region in an image

Try this:

xCentroids = centroids(1:2:end);
yCentroids = centroids(2:2:end);
for k = 1 : length(xCentroids )
  txt = sprintf(' %.2f', allDiameters(k));
        text(xCentroids(k), yCentroids(k), txt, 'FontSize', 20, 'FontWeight', 'bold');
end

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Related Solutions

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

MATLAB: How to plot the diameters of an irregularly shaped region in an image

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