From: Rob Campbell on

> thank you for your reply.actually im dealing with the human body images.i have to extract the chest part from the complete image.how is it possiable

I'm afraid this stuff is usually harder than you'd think. There is no magic fix. You'll need to read around to get a feeling for what's available. Everything depends on exactly what's in your images. Without seeing images it's unlikely anyone will be able to give a precise answer. Saying "I want to extract the chest" is not useful, I'm afraid.
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