Back to articles
Articles
Volume: 23 | Article ID: art00044_1
Image
A Method of Restoring the Shadow Distortion in a Bounded Book Scanned Image by Using Non-Edge Segment
HyungSoo Ohk
HyeonSeok Seo
KiMin Kang
DonChul Cho
  DOI :  10.2352/ISSN.2169-4451.2007.23.1.art00044_1  Published Online :  January 2007
Abstract

When a thick bounded book is scanned on a flatbed scanner, the folding areas adjacent to the left page and right page would not be contacted on the glass. Therefore, the folding areas are darkened because the light reflected from the folding areas is weakened. In order to restore the shadow distortion in the folding areas, distortion profile should be firstly estimated. This paper proposes a method for estimating shadow distortion from the bounded book scanned image itself and for restoring the shadow distortion. The estimation of the shadow distortion can be done by analyzing the information of the non-edge segment which consists of non-edge pixels. The analysis of the change of the average luminance in the non-edge segments can estimate the characteristics of the shadow distortion.

Journal Title : NIP & Digital Fabrication Conference
Publisher Name : Society of Imaging Science and Technology
Publisher Location : 7003 Kilworth Lane, Springfield, VA 22151, USA
Subject Areas :
Views 8
Downloads 0
 DOI 10.2352/ISSN.2169-4451.2007.23.1.art00044_1
 articleview.views 8
 articleview.downloads 0
  Cite this article 

HyungSoo Ohk, HyeonSeok Seo, KiMin Kang, DonChul Cho, "A Method of Restoring the Shadow Distortion in a Bounded Book Scanned Image by Using Non-Edge Segment"  in Proc. IS&T Int'l Conf. on Digital Printing Technologies and Digital Fabrication (NIP23),  2007,  pp 180 - 182,  https://doi.org/10.2352/ISSN.2169-4451.2007.23.1.art00044_1

 Copy citation
  Copyright statement 
Copyright © Society for Imaging Science and Technology 2007
72010410
NIP & Digital Fabrication Conference
nip digi fabric conf
2169-4451
Society of Imaging Science and Technology
7003 Kilworth Lane, Springfield, VA 22151, USA
2169-4451(20070101)2007:1L.180;1-
nip_v2007n1/splitsection44.xml
/ist/nipdf/2007/00002007/00000001/art00044
Articles
A Method of Restoring the Shadow Distortion in a Bounded Book Scanned Image by Using Non-Edge Segment
OhkHyungSoo
SeoHyeonSeok
KangKiMin
ChoDonChul
01012007
2007
1
180
182
2007
When a thick bounded book is scanned on a flatbed scanner, the folding areas adjacent to the left page and right page would not be contacted on the glass. Therefore, the folding areas are darkened because the light reflected from the folding areas is weakened. In order to restore the shadow distortion in the folding areas, distortion profile should be firstly estimated. This paper proposes a method for estimating shadow distortion from the bounded book scanned image itself and for restoring the shadow distortion. The estimation of the shadow distortion can be done by analyzing the information of the non-edge segment which consists of non-edge pixels. The analysis of the change of the average luminance in the non-edge segments can estimate the characteristics of the shadow distortion.