One of the common techniques of printing gray scale images using a bi-level device such as a commercial laser printer is Error Diffusion. Since most of the fingerprint images are gray scale images, they too can be printed using error diffusion. However, none of the existing popular error diffusion algorithms makes use of the ridge-flow information present in a fingerprint image. In this note, we explore the use of ridge-flow directions in a fingerprint image for the purpose of the error diffusion in printing fingerprint images.

Date Published: 28 January 1997
PDF: 5 pages
Proc. SPIE 2932, Human Detection and Positive Identification: Methods and Technologies, (28 January 1997); doi: 10.1117/12.265389

Published in SPIE Proceedings Vol. 2932:
Human Detection and Positive Identification: Methods and Technologies
Lisa A. Alyea; David E. Hoglund, Editor(s)