iphone - How to get a single entity from an image?

Question

I am using this image. I would like to have only the human part from this image. I don't want the background of this image.

How to do this? Any logic, links or the best and simple way?

here is the thing i want Link but i want this in objective c

Answer 1

There is no easy and fast way to satisfy your requirements. For the beginning you can learn how to detect objects in OpenCV.

After this you can check haarcascade_fullbody.xml from OpenCV sources. This cascade is for detecting bodies, open it in text editor, there is additional information in header. Anyway, I'm not sure that existing cascade is too accurate for your needs.