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Electrophotographic process embedded in direct binary search.

Dhiraj Kacker1, Tom Camis, Jan P Allebach

  • 1Imaging Sci., Shutterfly Inc., Redwood City, CA 94065, USA. dhiraj@shutterfly.com

IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society
|February 5, 2008
PubMed
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This study introduces a new halftoning method incorporating an electrophotographic process model. The enhanced direct binary search (DBS) algorithm improves print quality by optimizing pixel modulation for better tone reproduction.

Area of Science:

  • Imaging Science
  • Computer Vision
  • Print Engineering

Background:

  • Halftoning algorithms are crucial for digital image reproduction.
  • Existing methods often lack accurate printer process modeling, limiting quality.
  • Electrophotographic printing involves complex physical processes affecting final output.

Purpose of the Study:

  • To develop a novel halftoning approach integrating electrophotographic process models.
  • To enhance the direct binary search (DBS) algorithm with printer-specific parameters.
  • To improve the fidelity and tone reproduction of digital halftoning in electrophotography.

Main Methods:

  • Embedded models of laser beam, organic photoconductor exposure, and paper absorptance into DBS.
  • Developed a computationally viable algorithm adaptable to various pixel modulation schemes.

Related Experiment Videos

  • Tested the algorithm's portability across different electrophotographic engines.

    • Main Results:

    • The novel approach effectively utilizes pixel modulation capabilities.
    • Significant improvements in tone scale reproduction were observed compared to standard DBS.
    • The algorithm demonstrated high portability across different print engines.

    Conclusions:

    • Integrating electrophotographic process models into halftoning significantly enhances image quality.
    • The proposed method offers a robust and adaptable solution for high-fidelity electrophotographic printing.
    • This approach advances the field of digital halftoning by bridging algorithmic design and physical printing processes.