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Volume: 33 | Article ID: art00009
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Streak Detection in Color Printed Customer Content
  DOI :  10.2352/ISSN.2470-1173.2021.16.COLOR-254  Published OnlineJanuary 2021
Abstract

Streaks are one of the most common print defects in electrophotographic printers that influence print quality. Streak defects are dark or light lines with the major axis along the printing process direction and are usually caused by a defective Intermediate Transfer Belt (ITB) or Organic Photo Conductor (OPC) component in the printer. Previously, we designed an algorithm to detect the streak defects only on standard printed test pages, which have uniform color [1]. In this paper, we design an algorithm to detect the streak defects on the customer content area, which we call a raster ROI. It is more complicated than the uniform color printed page because the customer content influences our streak detection result. Sometimes, the customer content has some dark or light straight lines along the printing process direction, and they are similar to streak defects. To detect the streak defects on the customer pages, we must separate the straight lines of customer content and the streak defects. To detect the streak in a raster ROI, we apply the Sobel edge detection algorithm and morphological operations to the master image, which includes the customer content without defects, to remove the straight customer content lines on the scanned test pages. The remaining dark or light straight line along the printing process direction may be streak defects. For the detected streak defects, we use the DAG-SVM multi-classification method to classify the rank of streak defects in the raster ROI.

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  Cite this article 

Runzhe Zhang, Eric Maggard, Yousun Bang, Minki Cho, Mark Shaw, Jan Allebach, "Streak Detection in Color Printed Customer Contentin Proc. IS&T Int’l. Symp. on Electronic Imaging: Color Imaging XXVI: Displaying, Processing, Hardcopy, and Applications,  2021,  pp 254-1 - 254-8,  https://doi.org/10.2352/ISSN.2470-1173.2021.16.COLOR-254

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