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A Recent Hybrid Screen Design Example

Learn about the recent hybrid screen design that generates stochastic dispersed-dot textures in highlights and shadows, and periodic clustered-dot textures in midtones. Discover the benefits and applications of this screen method in low-cost electrophotographic printers.

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A Recent Hybrid Screen Design Example

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  1. A Recent Hybrid Screen Design Example Jan Allebach, Wan-Eih Huang, and Tongyang Liu

  2. The Hybrid Screen • The hybrid screen is a screening algorithm which generates stochastic dispersed-dot textures in highlights and shadows, and periodic clustered-dot textures in midtones. Smooth transition

  3. HP LaserJet Pro M15w Printer on sale at HP store for $79.99

  4. Printerland Review: HP LaserJet Pro M15w A4 Mono Laser Printer

  5. Recent work with hybrid screens • Monochrome hybrid, multilevel, halftone screen with unequal spatial resolution for a low-cost electrophotographic printer • Hybrid screen method • Clustered-dot periodic screen • Supercell • DBS • Unequal resolution printing model • Multilevel output W. Huang, T. Liu, K. Bengston, and J. Allebach, “Monochrome Hybrid, Multilevel Halftone Screen with Unequal Resolution for a Low-Cost Electrophotographic Printer,”Color Imaging XXIII: Displaying, Processing, Hardcopy, and Applications, (Part of IS&T Electronic Imaging 2018), R. Eschbach, G. Marcu, and A. Rizzi, Eds. San Francisco, CA, 29 January -2 February 2018. Unequal spatial resolution *Research supported by HP, Inc.

  6. Hybrid screenHighlight cores and shadow cores Highlight core Shadow core 8 1 5 3 2 11 • S shape highlight cores and shadow cores • The microcell sequence of each core might not be the same • The sequences in the highlight and shadow cores are determined by DBS • Spatial freedom • The sequences in the remaining pixels (midtone) are the same for all microcells • Periodic clustered-dot texture 6 4 9 12 7 10 6 8 1 3 2 4 7 5 6 8 Example: 8x12 supercell

  7. Thank you for your attention! White Clay Creek, Newark, DE, ca. 1970.

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