The system and {HEAD ~ method} are based on determining local black points in a digital image and correcting {TAIL ~ the intensities} of nearby pixels so as to remove bias in the image introduced by atmospheric conditions 
are based on correcting
The system and { HEAD ~ method } are based on determining local black points in a digital image and correcting { TAIL ~ the intensities } of nearby pixels so as to remove bias in the image introduced by atmospheric conditions
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL REL OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH