Ex parte LEVIEN - Page 6

          Appeal No. 95-2827                                                          
          Application 07/983,211                                                      

          within the image.”  The two embodiments of this reference                   
          respectively compare the average gray value of the original                 
          image to the average gray value of the output image or the                  
          average gray value of the modified image being compared to the              
          average gray value of the output image.  The discussion of                  
          Figure 1 in this reference indicates that each pixel is                     
          defined at a single level or optical density in a set of                    
          optical density levels.  Column 4, lines 48 to 52.  Finally,                
          at column 5, lines 9 to 13, Eschbach states that “[g]ray                    
          values are typically expressed as integers, with one example                
          falling in the range from 0 to 255, although greater or lesser              
          number of levels, as well as non-integer representations, are               
               For his part, Itoh seems to speak the same language as to              
          density.  At column 1, lines 14 to 16, Itoh states “an image                
          constituted by a plurality of pixels each of which is formed                
          by density data consisting of a plurality of bits.”  With                   
          respect to Figure 1 of this reference, it is stated at column               
          3, lines 13 to 16 that “each square denotes one pixel, and a                
          numeral in each square denotes the density of the pixel.”                   


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Last modified: November 3, 2007