If the largest distance is greater than {HEAD ~ the maximum distance}, then {TAIL ~ the virtual slide image} is designated as needing a manual inspection 
If the largest distance is greater than { HEAD ~ the maximum distance } , then { TAIL ~ the virtual slide image } is designated as needing a manual inspection
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH