How to get a region from points

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Hg
Hg 2015-10-21
回答： Walter Roberson 2015-10-21
Below is a scatter plot from array that I get using boundary(). How can I get a region so that I can use regionprops() to find the centroid, orientation etc.

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Walter Roberson
Walter Roberson 2015-10-21
You could dilate the image repeatedly until the boundary closed (at which point there would be only one blob) and then erode it again maintaining continuity; see bwmorph() for useful functions.

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