Halftoning over a hexagonal grid

Pierre-Marc Jodoin; Victor Ostromoukhov

doi:10.1117/12.473230

13 January 2003 Halftoning over a hexagonal grid

Pierre-Marc Jodoin, Victor Ostromoukhov

Proceedings Volume 5008, Color Imaging VIII: Processing, Hardcopy, and Applications; (2003) https://doi.org/10.1117/12.473230
Event: Electronic Imaging 2003, 2003, Santa Clara, CA, United States

Abstract

In this contribution, we present an optimal halftoning algorithm that uniformly distributes pixels over a hexagonal grid. This method is based on a slightly modified error-diffusion approach presented at SIGGRAPH 2001. Our algorithm's parameters are optimized using a simplex downhill search method together with a blue noise based cost function . We thus present a mathematical basis needed to perform spectral and spatial calculations on a hexagonal grid. The proposed algorithm can be used in a wide variety of printing and visualization tasks. We introduce an application where our error-diffusion technique can be directly used to produce clustered screen cells.

Citation Download Citation

Pierre-Marc Jodoin and Victor Ostromoukhov "Halftoning over a hexagonal grid", Proc. SPIE 5008, Color Imaging VIII: Processing, Hardcopy, and Applications, (13 January 2003); https://doi.org/10.1117/12.473230

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