lincoln.raw -- Gray-scale image of Honest Abe

Access
    Abe = ReadImage('Lincoln');
  
Size
    64 by 64

Gray Levels
    32
   
Description
    Made famous in a psycho-optical experiment by Harmon
    and Julesz, who showed that the blocky structure of
    a 16-by-16 version of this image makes it hard to tell
    who the subject is.
   
Source
    Typed in by hand from tables in the book
    "Digital Image Processing" by Rafael C. Gonzalez
    and Richard E. Woods, published by Addison Wesley.
