If, in {TAIL ~ the second image}, {HEAD ~ the user} selects only a section around the position of a cell in the first image, then the computing power or time required for segmentation can be additionally reduced 
in
If , in { TAIL ~ the second image } , { HEAD ~ the user } selects only a section around the position of a cell in the first image , then the computing power or time required for segmentation can be additionally reduced
OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH