The cansiters.raw, aircraft.raw, and fort-hood.raw are in raw data
format (no header) and have 1 byte per pixel.

  Canisters.raw contains several targets with various background clutter,
and was scanned at 150 dpi. 

  Aircraft.raw contains an airplane with some vehicles.

  Fort-Hood.raw contains some buildings and vehicles at Fort Hood.


    filename         rows        columns      dpi
  canisters.raw      750          800         150
  aircraft.raw	     512 	  512
  fort-hood.raw	     512          512

  If you have any problem, please send mail to swang@flamingo.stanford.edu .