Regular Articles

Calibrating ink spreading curves by optimal selection of tiles from printed color images

[+] Author Affiliations
Thomas Bugnon

École Polytechnique Fédérale de Lausanne, School of Computer and Communication Sciences, EPFL-IC-LSP, Station 14, 1015 Lausanne, Switzerland

Roger David Hersch

École Polytechnique Fédérale de Lausanne, School of Computer and Communication Sciences, EPFL-IC-LSP, Station 14, 1015 Lausanne, Switzerland

J. Electron. Imaging. 21(1), 013024 (Apr 11, 2012). doi:10.1117/1.JEI.21.1.013024
History: Received March 16, 2011; Revised November 24, 2011; Accepted December 27, 2011
Text Size: A A A

Abstract.  The Yule-Nielsen modified spectral Neugebauer model (YNSN) enables predicting reflectance spectra from ink surface coverages of halftones. To provide an improved prediction accuracy, this model is enhanced with an ink spreading model accounting for ink spreading in all superposition conditions (ISYNSN). As any other spectral reflection prediction model, the ISYNSN model is conceived to predict the reflection spectra of color-constant patches. Instead of color-constant patches, we investigate if tiles located within color images can be accurately predicted and how they can be used to facilitate the calibration of the ink spreading model. We detail an algorithm to automatically select image tiles as uniform as possible from color images by relying on their CMY or CMYK pixel values. The tile selection algorithm incorporates additional constraints relying on surface coverages of the inks. We demonstrate that an ink spreading model calibrated with as few as 5 to 10 optimally chosen image tiles allows the corresponding YNSN model to provide accurate spectral predictions.

Figures in this Article
© 2012 SPIE and IS&T

Topics

Calibration

Citation

Thomas Bugnon and Roger David Hersch
"Calibrating ink spreading curves by optimal selection of tiles from printed color images", J. Electron. Imaging. 21(1), 013024 (Apr 11, 2012). ; http://dx.doi.org/10.1117/1.JEI.21.1.013024


Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

PubMed Articles
Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.