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Application of digital image analyses to measure print quality

  • Technology Forum
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Journal of Coatings Technology

Conclusions

The digital image analyses method is capable of objective and reproducible measurements of print mottle. The results of the scanner calibration test show improved consistency in the mottle values between different scanners. This would allow many locations to have their own analysis station without compromising a “universal” measurement. The mottle measurements of the Heidelberg standards correspond to the visual ranking. The robustness of the scanner method was shown by tests of prints on different substrates. Finally, a modified version of the analysis shows that halftone prints can also be tested. The method described here shows good agreement with the Tobias mottle tester.

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References

  1. Armel, D. and Wise, J., “An Analytical Method for Quantifying Mottle,”Flexo (December 1998)

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  6. Vrotacoe, J. from Heidelberg Web Press, has performed similar studies on the scanning method, confirming our results.

  7. Edinger, J.R., “Fundamentals of Black and White Image Quality,” IS&T’s NIP13: International Conference on Digital Printing Technologies, 1997.

  8. Portions of this paper have been published in the IS&T NIP14 Conference Proceedings. © 1998, IS&T-The Society for Imaging Science and Technology.

  9. Portions of this paper have been presented at the NPIRI Technical Conference, October 1998.

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Authors and Affiliations

  1. Flint Ink Research Center, USA

    William Lim & Suresh Mani

Authors
  1. William Lim
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  2. Suresh Mani
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4600 Arrowhead Drive, Ann Arbor, MI 48105.

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Lim, W., Mani, S. Application of digital image analyses to measure print quality. Journal of Coatings Technology 71, 73–78 (1999). https://doi.org/10.1007/BF02698374

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  • DOI: https://doi.org/10.1007/BF02698374

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