Back to articles
Articles
Volume: 32 | Article ID: art00013
Image
Color Interpolation Algorithm for a Periodic White-Dominant RGBW Color Filter Array
Kyeonghoon Jeong
Jonghyun Kim
Moon Gi Kang
  DOI :  10.2352/ISSN.2470-1173.2020.10.IPAS-134  Published Online :  January 2020
Abstract

Recently, CFA sensors including the W channel have been developed. Since the W channel receives luminance information, the W channel has a wider spectrum band than that of the R, G, and B channels. Therefore, the W channel can get higher SNR than that of the R, G, and B channels. There are many color interpolation methods for the Bayer CFA, but less for the RGBW CFA. In this paper, we propose a new color interpolation method for white-dominant RGBW CFA. The proposed method is edgeadaptive. Its method reconstruct the W channel first which has a high sampling rate. Next, the R, G, and B channels are reconstructed by using the color difference domains with theWchannel. Experimental results show that the PSNR and visual confirmation are higher than the conventional method.

Journal Title : Electronic Imaging
Publisher Name : Society for Imaging Science and Technology
Publisher Location : 7003 Kilworth Lane, Springfield, VA 22151 USA
Subject Areas :
Views 38
Downloads 6
 DOI 10.2352/ISSN.2470-1173.2020.10.IPAS-134
 articleview.views 38
 articleview.downloads 6
  Cite this article 

Kyeonghoon Jeong, Jonghyun Kim, Moon Gi Kang, "Color Interpolation Algorithm for a Periodic White-Dominant RGBW Color Filter Array"  in Proc. IS&T Int’l. Symp. on Electronic Imaging: Image Processing: Algorithms and Systems XVIII,  2020,  pp 134-1 - 134-5,  https://doi.org/10.2352/ISSN.2470-1173.2020.10.IPAS-134

 Copy citation
  Copyright statement 
Copyright © Society for Imaging Science and Technology 2020
72010604
Electronic Imaging
2470-1173
Society for Imaging Science and Technology
7003 Kilworth Lane, Springfield, VA 22151 USA
10.2352/ISSN.2470-1173.2020.10.IPAS-134
2470-1173(20200126)2020:10L.1341;1-
ei_24701173_v2020n10_input/s13.xml
/ist/ei/2020/00002020/00000010/art00013
Articles
Color Interpolation Algorithm for a Periodic White-Dominant RGBW Color Filter Array
JeongKyeonghoon
KimJonghyun
KangMoon Gi
26012020
2020
10
134-1
134-5
2020
Recently, CFA sensors including the W channel have been developed. Since the W channel receives luminance information, the W channel has a wider spectrum band than that of the R, G, and B channels. Therefore, the W channel can get higher SNR than that of the R, G, and B channels. There are many color interpolation methods for the Bayer CFA, but less for the RGBW CFA. In this paper, we propose a new color interpolation method for white-dominant RGBW CFA. The proposed method is edgeadaptive. Its method reconstruct the W channel first which has a high sampling rate. Next, the R, G, and B channels are reconstructed by using the color difference domains with theWchannel. Experimental results show that the PSNR and visual confirmation are higher than the conventional method.
color interpolationrgbwcolor demosaicing