How to find Skeleton Image Region of Interest Eye,Nose and Mouth

Hi,,

     I am new for Matlab , i have sample code which i have passes dynamic image read segmentation skeleton .Below code i am got skeleton Ending points shape . after that *i want to find Contour Tracing and ROI(Region of Interest) using skeleton image* .please let me know if any one  how to get symmetry shape of face include Eye ,Nose and Mouth.

• BW = bwmorph(d2,'skel',Inf);
• figure,imshow(BW);
• % BW=bwmorph(d2,'branchpoints');
• [row,column] = find(BW);
• branchPts = [row column];
• endImg = bwmorph(BW, 'endpoints');
• [row column] = find(endImg);
• endPts = [row column];
• plot(branchPts(:,2),branchPts(:,1),'rx');
• plot(endPts(:,2),endPts(:,1),'*');