MATLAB: How to get the fork points of a skeleton of an image

branchpointsforkfork pointsImage Processing Toolboxskeletonization

I want to find the fork points of a skeleton of an image. I have obtained the skeleton of the image using the bwmorph(binaryImage, 'skel', Inf) function.

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How about?

skelimage = bwmorph(binaryImage, 'skel', Inf);
branchimage = bwmorph(skelimage, 'branchpoints');

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MATLAB: How to find fork points of a skeleton? By fork point, I mean, a skeleton point having more than two adjacent points. Please help.

Have you tried branchpoints? http://www.mathworks.com/help/images/ref/bwmorph.html

MATLAB: Total area of a region of binary image

Huh? Of course you can use regionprops. No need to use bwboundaries() at all, unless you just want to show the outlines of the segmented areas in the overlay above your original gray scale or color image.

If you want the area of all the white pixels in your binary image you can do it two ways, with slightly different results because they use different calculation methods

pixelSum1 = bwarea(binaryImage);
pixelSum2 = sum(binaryImage(:));

If you want the area of each blob in the image individually, you can do it like this:

labeledImage = bwlabel(binaryImage);
measurements = regionprops(labeledImage, 'Area');
allAreas = [measurements.Area];  % List of all the blob areas.
totalAreaOfAllBlobs = sum(allAreas); % Will be the same as pixelSum2

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Related Solutions

MATLAB: How to find fork points of a skeleton? By fork point, I mean, a skeleton point having more than two adjacent points. Please help.

MATLAB: Total area of a region of binary image

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