Color Interpolation Algorithm for a Periodic White-Dominant RGBW Color Filter Array

Kyeonghoon Jeong, Jonghyun Kim, Moon Gi Kang

Research output: Contribution to journalConference articlepeer-review

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 edge-adaptive. 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 the W channel. Experimental results show that the PSNR and visual confirmation are higher than the conventional method.

Original languageEnglish
JournalIS and T International Symposium on Electronic Imaging Science and Technology
Volume2020
Issue number10
DOIs
Publication statusPublished - 2020 Jan 26
Event18th Image Processing: Algorithms and Systems Conference, IPAS 2020 - Burlingame, United States
Duration: 2020 Jan 262020 Jan 30

Bibliographical note

Publisher Copyright:
© 2020, Society for Imaging Science and Technology

All Science Journal Classification (ASJC) codes

  • Computer Graphics and Computer-Aided Design
  • Computer Science Applications
  • Human-Computer Interaction
  • Software
  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics

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