wherein {TAIL ~ said chromatic color dot creation module} creates the first chromatic color dots and {HEAD ~ the second chromatic color dots} at the ratio set by said density ratio setting module 
wherein { TAIL ~ said chromatic color dot creation module } creates the first chromatic color dots and { HEAD ~ the second chromatic color dots } at the ratio set by said density ratio setting module
OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH