Dithering optimization techniques

Details Dithering optimization techniques Dithering optimization techniques

1994-01-04

1996-06-11

Kuntz, Curtis

Computer graphics processing and selective visual display system

Display peripheral interface input device

Light pen for fluid matrix display panel

358456, 358457, G09G 510

Patent

active

055260217

ABSTRACT:
A process of producing large dither matrices suitable in use in halftoning images is disclosed. This process includes forming an objective function based on the placement of the dither values within the matrix and optimizing the objective function so as to produce an improved matrix. The preferred optimizations process includes the use of simulated annealing with additional optimizations of the simulated annealing process being disclosed.

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patent: 5214517 (1993-05-01), Sullivan et al.
patent: 5363213 (1994-11-01), Coward et al.
S. Kirkpatrick, et al., "Optimization by Simulated Annealing", Science 220, pp. 671-680 (1983).
C. Gotsman, "Halftoning of Image Sequences", The Visual Computer, 9, pp. 255-266 (1993).
D. L. Neuhoff, et al., "One-Dimensional Least-Squares Model-Based Halftoning", ICASSP-92, vol. 3, M, Multidimensional Signal Processing, 1992 IEEE International Conference on Acoustics, pp. III-189-III-192 (Mar. 1992).

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