A characteristic curve interface is provided allowing an operator to place the subject image on the characteristic curve so that the image processing system tracks {HEAD ~ the location} of {TAIL ~ the subject image} on the curve 
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A characteristic curve interface is provided allowing an operator to place the subject image on the characteristic curve so that the image processing system tracks { HEAD ~ the location } of { TAIL ~ the subject image } on the curve
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 HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH