Back to articles
Articles
Volume: 18 | Article ID: art00061_2
Image
Dependence of Image Quality on the Degree of Edge Enhancement
Hironori Hayashi
Pranchalee Ratanasakornchai
Hu Mei
Yasushi Hoshino
  DOI :  10.2352/ISSN.2169-4451.2002.18.1.art00061_2  Published Online :  January 2002
Abstract

Edge enhancement is an important image processing in imaging systems. When the enhancement is insufficient, we feel the image is out of focus, but when it is too strong, we feel unnatural. So, the optimum degree of the edge enhancement is investigated by using subjective evaluation. Several types of image are prepared by digital still camera (D1, Nikon). The image capturing conditions are no edge enhancement, no image data compression and taking care of low noise. The edge enhancement is carried out on adjusting neighboring 4 pixels according to Laplacian operation. The degree of the edge enhancement is adjusted by controlling the intensity of Laplacian operation. In every images, the image quality is improved by certain degree of edge enhancement. It is observed that the optimum degree of edge enhancement shows difference among the categories of images.

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.2169-4451.2002.18.1.art00061_2
 articleview.views 8
 articleview.downloads 0
  Cite this article 

Hironori Hayashi, Pranchalee Ratanasakornchai, Hu Mei, Yasushi Hoshino, "Dependence of Image Quality on the Degree of Edge Enhancement"  in Proc. IS&T Int'l Conf. on Digital Printing Technologies (NIP18),  2002,  pp 678 - 681,  https://doi.org/10.2352/ISSN.2169-4451.2002.18.1.art00061_2

 Copy citation
  Copyright statement 
Copyright © Society for Imaging Science and Technology 2002
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(20020101)2002:2L.678;1-
nip_v2002n2/splitsection61.xml
/ist/nipdf/2002/00002002/00000002/art00061
Articles
Dependence of Image Quality on the Degree of Edge Enhancement
HayashiHironori
RatanasakornchaiPranchalee
MeiHu
HoshinoYasushi
01012002
2002
2
678
681
2002
Edge enhancement is an important image processing in imaging systems. When the enhancement is insufficient, we feel the image is out of focus, but when it is too strong, we feel unnatural. So, the optimum degree of the edge enhancement is investigated by using subjective evaluation. Several types of image are prepared by digital still camera (D1, Nikon). The image capturing conditions are no edge enhancement, no image data compression and taking care of low noise. The edge enhancement is carried out on adjusting neighboring 4 pixels according to Laplacian operation. The degree of the edge enhancement is adjusted by controlling the intensity of Laplacian operation. In every images, the image quality is improved by certain degree of edge enhancement. It is observed that the optimum degree of edge enhancement shows difference among the categories of images.