?url_ver=Z39.88-2004&rft_id=10.1109%2FICEEI.2009.5254801&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Asmare%2C+M.H.&rft.aulast=Asmare&rft.aufirst=M.H.&rft.isbn=9781424449132&rft.title=Image+enhancement%3A+A+composite+image+approach+using+contourlet+transform&rft.date=2009&rft.genre=proceeding