Prior to image processing, each point in {TAIL ~ the digitized 3D and gray scale data} is transformed based upon the digital values of the gray scale and {HEAD ~ height values} 
Prior to image processing , each point in { TAIL ~ the digitized 3D and gray scale data } is transformed based upon the digital values of the gray scale and { HEAD ~ height values }
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD