How do i extract points from roi using roipoly?

So i have set of random x and y cordinate , i draw roi by roipoly. How can i just get the x and y coordinates of the points that are inside of roi( as shown in attached)? or any other way i could do ?

Answer 1

[Cris LaPierre]

Assign the output of roipoly to a variable. See the syntax section of the documentation page. You probably want the following syntax:

[BW,xi2,yi2] = roipoly(___)

[Prakash Raut]

Thanks Cris for your reply but i want to extract coordinates of points that are inside the roi (see attached), not the coordinates of the polygon(roi). Any suggestion would be really helpful.

[Cris LaPierre]

Ah, thank you for clarifying. In that case, try using inpolygon. You will need the xi2 and yi2 outputs above as inputs to inpolygon.