MATLAB: How can find area of the dent detected

area of the dent?dentImage Processing Toolboximage segmentation

Hi, i have already found the dent in the laminates but i need find the area of the dent

please help me on this

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You forgot to attach your image. All I can suggest then is to run my Image Segmentation Tutorial: http://www.mathworks.com/matlabcentral/fileexchange/25157-image-segmentation-tutorial---blobsdemo--

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MATLAB: Dented battery surface defect detection and defect measurement

Measure the solidity of the blob with regionprops. If it's less than 1, there are defects/bays in the surface.

By the way, be aware that Duracell (part of Berkshire Hathaway) has a patent on the use of CT for looking at batteries.

MATLAB: How do you find the centroid of a particular Blob

Since you're working with a binary image here, BW2, you can use the bwpropfilt function to clean up the small areas.

BW2 = bwpropfilt(BW2, 'Area', 1);

The last input argument determines the largest # of regions to keep, so it can be lowered to just the one. From there regionprops would only detect the single centroid.

You could also pass area as an input to regionprops as it is and use the centroid of the largest area.

measurements = regionprops(BW2, 'Centroid', 'Area');
[~,ind] = max(cat(1,measurements.Area));
centroid = measurements(ind).Centroid;

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MATLAB: Dented battery surface defect detection and defect measurement

MATLAB: How do you find the centroid of a particular Blob

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