How can I delete non-connected contour from binary image??

I have binary image containing many contours, I need to delete discontinuous contours and keep those are connect.

[KSSV]

Pictorial example will help us to help you..

Answer 1

[Image Analyst]

Try bwselect(). Or bwareafilt() or bwpropfilt(). Or label it with bwlabel() and use some other criteria to identify the ones you don't want then use ismember.