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Image Capture II
Volume: 28 | Article ID: art00017
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Effects on Fourier Peaks Used for Periodic Pattern Detection
  DOI :  10.2352/ISSN.2470-1173.2016.13.IQSP-214  Published OnlineFebruary 2016
Abstract

The detection of quasi-periodic patterns, such as those found in clustered-dot halftones, can be efficiently achieved by searching for strong peaks in the frequency domain. In this paper, we quantify four factors that contribute to the attenuation of those characteristic peaks related to mobile hand-held image capture. These include MTF, halftone cluster size, blur, and contrast. We derive the expected theoretical attenuation for each of these factors, and then compare these with experimentally measured results from mobile captured images of test prints.

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Chun-Jung Tai, Robert Ulichney, Jan P. Allebach, "Effects on Fourier Peaks Used for Periodic Pattern Detectionin Proc. IS&T Int’l. Symp. on Electronic Imaging: Image Quality and System Performance XIII,  2016,  https://doi.org/10.2352/ISSN.2470-1173.2016.13.IQSP-214

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Copyright © Society for Imaging Science and Technology 2016
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Electronic Imaging
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