Back to articles
article
Volume: 52 | Article ID: art00006
Image
Halftone Dot Size Variation in Offset, Electrophotographic, and Flexographic Printing and Its Perception
  DOI :  10.2352/J.ImagingSci.Technol.(2008)52:6(060503)  Published OnlineNovember 2008
Abstract

In digital halftone technology, dot reproducibility is an important factor because our perception and recognition of an image depend on the characteristics of the printed dot. Halftone dot size variations reproduced by typical printing technologies, such as electrophotography, offset, and flexography, were investigated to determine their dot reproducibility. The investigation found that offset, flexography, and electrophotography can produce halftone dot sizes with a percentage coefficient of variation (%CV) at 8.88, 19.64, and 13.93 consecutively in the highlight image areas (small dot size), while the %CV of halftone dot size variations tend to decrease when the dot size increases in the midtone and shadow image areas. The perception of simulated halftone dot size variations was then studied experimentally under set observation distance and halftone frequency conditions in order to analyze the relation between human perception and halftone dot size variations. It was determined that human perception detects nonuniform halftone image dot patterns when the %CV of the halftone dot size variation is greater than 6.72.

Subject Areas :
Views 19
Downloads 0
 articleview.views 19
 articleview.downloads 0
  Cite this article 

Phichit Kajondecha, Yasushi Hoshino, "Halftone Dot Size Variation in Offset, Electrophotographic, and Flexographic Printing and Its Perceptionin Journal of Imaging Science and Technology,  2008,  pp 60503-1 - 60503-7,  https://doi.org/10.2352/J.ImagingSci.Technol.(2008)52:6(060503)

 Copy citation
  Copyright statement 
Copyright © Society for Imaging Science and Technology 2008
  Login or subscribe to view the content