A low point and an edge point are identified from the histogram and integral, and based on {HEAD ~ the type} of {TAIL ~ radiographic examination} selected, are used with appropriate constants and algorithms to calculate a maximum and minimum value 
of
A low point and an edge point are identified from the histogram and integral , and based on { HEAD ~ the type } of { TAIL ~ radiographic examination } selected , are used with appropriate constants and algorithms to calculate a maximum and minimum value
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH