How to make 2D boundary follow the data ?

3 views (last 30 days)
I have this data set (attached). I tried to find the boundary for it but the boundary doesn't follow outer data points exactly (as shown) especially at the corners. Though I tried to change shrink factor(s). Hope you can help me figure that out.
Thank you
s=1; %shrink factor
k = boundary(x,y,1);

Accepted Answer

Image Analyst
Image Analyst on 8 Sep 2017
Try different shrink factors, the third argument. Try something between 0.1 and 0.9 until you find one that "hugs" your point set the best.
  1 Comment
Faez Alkadi
Faez Alkadi on 8 Sep 2017
I did that before, but still doesn't work. Hope you try it with the data i have attached and see. Thank you

Sign in to comment.

More Answers (0)


Find more on Multidimensional Arrays in Help Center and File Exchange


Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by