{HEAD ~ Monochrome images} are created based on {TAIL ~ the gray tone images} and color coefficiency tables 
{ HEAD ~ Monochrome images } are created based on { TAIL ~ the gray tone images } and color coefficiency tables
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH