Share Email Print

Proceedings Paper

Objective method for evaluating the color image reproduction from CRT to printer
Author(s): Junsheng Shi; Shaoquan Jiang; Weiping Yang
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

It is necessary for evaluating the color reproduction from CRT image to printer image. However, the process of evaluation is difficult. This paper describes an approximate, but very simple and objective method of evaluating the color reproduction from CRT to printer by employing a scanner. The process is as follows: (1)an experimental image on a CRT, witch contains 1301 color patches with size 6x6mm2 ;(2)the printed image was scanned by a scanner; (3)segmenting the scanned image for finding each color patch, then calculating average values of RGB for each patch; (4)calculating color difference between scanned image and original CRT image for each patch. Average difference may show approximately the color difference between a CRT image and the printed image. This method is based on a fact: color reproduction from CRT to printer is worse than from printed image to the scanned image. In our experiments, average CIE 1976Lu*v* color difference between the printed image and the CRT image is 10.9 units, but average color difference between the scanned image and the printed image is less than 4 units. Experiments show that the result of evaluation by this method is consistent with one by observers visually.

Paper Details

Date Published: 13 September 2002
PDF: 5 pages
Proc. SPIE 4922, Color Science and Imaging Technologies, (13 September 2002); doi: 10.1117/12.483137
Show Author Affiliations
Junsheng Shi, Yunnan Normal Univ. (China)
Shaoquan Jiang, Yunnan Normal Univ. (China)
Weiping Yang, Yunnan Normal Univ. (China)

Published in SPIE Proceedings Vol. 4922:
Color Science and Imaging Technologies
Dazun Zhao; Ming Ronnier Luo; Kiyoharu Aizawa, Editor(s)

© SPIE. Terms of Use
Back to Top