Commands used to create a b-w inverse colortable for the java version
of Skyview
IDL> r=indgen(256)
IDL> r=(r-255)*(-1)
IDL> r=byte(r)
IDL> g=r
IDL> b=r
IDL> xx=[[r],[g],[b]]  
IDL> openw,1,"inverse.bin"
IDL> writeu,1,xx
IDL> close,1


