how to find triangle area of consecutive boundary points on an image?

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sheenu
sheenu on 29 Oct 2014
Commented: Image Analyst on 29 Oct 2014
plz reply as soon as possible
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sheenu
sheenu on 29 Oct 2014
i have to calculate the triangle area formed by three consecutive points on the boundary of an object in an image? after this I have to check the value of area is greater than zero or less than zero for which boundary points
sheenu
sheenu on 29 Oct 2014
I have attached the image also .please help me, this is also known as triangle area representation which gives convexity,concavity of boundary points and it helps for shape based representation.

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Answers (1)

Image Analyst
Image Analyst on 29 Oct 2014
What is the "Triangle" area? What's wrong with just using the built-in polyarea() function???
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Image Analyst
Image Analyst on 29 Oct 2014
sheenu - you didn't attach anything. You have to click both "Choose file" and "Attach file" - you probably forgot the last step. And again, why won't polyarea() work for you?

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