How to detect only region of an image using active contour

Here is a code

[MathReallyWorks]

What do you mean by only region? Explain it clearly.

[komal kella]

its mean i want only inner portion

[Image Analyst]

And was there something about my skull stripping demo below that didn't do that?

[komal kella]

you never use active contour.. i need that code in which tumor is detected using active contour or deformable model.

Answer 1

[Image Analyst]

See my attached demo to find a tumor in an MRI image. Adapt as needed.

[komal kella]

please help me how to extract any region of an image.

[Image Analyst]

If you absolutely must use activecontour(), then the only demo I have ready to go is attached. Not sure how applicable it is - you might have to adapt it. That function has lots of options you can use to specify precisely how it should work, but that means it can be tricky to find the right combination of input parameter values.