enormously unbalanced r and l caused by (x, y, w, h) and n

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in CV_CG.h:
As you mentioned, we don't need (x, y, w, h) to do cv2cg, however, you 
preserved. That needs correct n, yet, not every .par file provides n and the 
default value is 1.0, which will result in enormously unbalanced r and l.

IMHO, delete all the ImgW and ImgH. 

Original issue reported on code.google.com by sherlockmao on 25 Mar 2011 at 2:55