By Benson Perry, Mortimer L. Mendelsohn
Communications of the ACM,
May 1964,
Vol. 7 No. 5, Pages 311-313
10.1145/364099.364336
Comments
A method is described for producing gray-toned pictures on a line printer by utilizing the different degrees of blackness of standard print characters. Gray scales with 17, 32 and 64 levels have been devised. Scanned images of blood cells are used to display the technique.
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