Problem with "roipoly" MATLAB function.

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Sajid Sarwar
Sajid Sarwar on 23 Jan 2020
Commented: nikhil mahar on 14 Apr 2021
I am using following line in my code but roipoly takes endless time to run and shows no output. I have watch tutorials over it where it runs within a second.
Please guide me to resolve the issue.
x=imread('balls.jpg');
region=roipoly(x)

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