1 May 1994 Blue noise and model-based halftoning
Author Affiliations +
`Model-based' halftoning techniques use models of visual perception and printing to produce high quality images using standard laser printers. Blue-noise screening is a dispersed-dot ordered dither technique that attempts to approximate the performance of error diffusion with much faster execution time. We use printer and visual system models to improve the design of blue-noise screens using the `void-and-cluster' method. We show that, even with these improvements, the performance of blue-noise screens does not match that of the model-based techniques. We show that using blue-noise screened images as the starting point of the least- squares model-based (LSMB) algorithm results in halftones inferior to those obtained with modified error diffusion (MED) starting points. We also use simulated annealing to try to find the global optimum of the least-squares problem. Images found this way do not have significantly lower error than those resulting from the simple iterative LSMB technique starting with MED. This result indicates that the simple iterative LSMB algorithm with a MED starting point yields a solution close to the globally optimal solution of the least-squares problem.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Mark A. Schulze, Thrasyvoulos N. Pappas, "Blue noise and model-based halftoning", Proc. SPIE 2179, Human Vision, Visual Processing, and Digital Display V, (1 May 1994); doi: 10.1117/12.172669; https://doi.org/10.1117/12.172669


Direct binary search (DBS) algorithm with constraints
Proceedings of SPIE (February 04 2013)
Model-based clustered-dot screening
Proceedings of SPIE (January 16 2006)
Dot gain compensation in the blue noise mask
Proceedings of SPIE (April 20 1995)
New methods for digital halftoning and inverse halftoning
Proceedings of SPIE (December 28 2001)
Least-squares model-based halftoning
Proceedings of SPIE (August 27 1992)
Model-based halftoning
Proceedings of SPIE (June 01 1991)

Back to Top