Proceedings of the 2022 International Conference on Bigdata Blockchain and Economy Management (ICBBEM 2022)

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A New Time-Effective Weighted Interpolation Method for Color Filter Array Demosaicking

Authors
Yuxuan Song1, *
1Hanhong College, Southwest University, Chongqing, China
*Corresponding author. Email: songyuxuanswu@163.com
Corresponding Author
Yuxuan Song
Available Online 20 December 2022.
DOI
10.2991/978-94-6463-030-5_93How to use a DOI?
Keywords
Color Filter Array (CFA) Demosaicking; Weighted Interpolation; Finite Impulse Response (FIR) Filter
Abstract

To reduce the cost of storage and size, most digital cameras capture images through a chip whose surface is covered with a color filter array (CFA) where each sensor only samples one of three original color values. To reconstruct a full image, an interpolation process, often called CFA demosaicking, is required to estimate the missing color values. In this paper, a new time-effective weighted interpolation method for CFA demosaicking is proposed. The new algorithm contains three consecutive steps: First, during the interpolation of green plane, the image is divided into three different regions where each of these is handled with different strategies. Second, four-directional weighted interpolation with gradient inverse weighted filtering (GIWF) refinement is utilized in filling the missing red and blue components. Finally, a postprocessing step with 2-dimensional finite impulse response (FIR) filter is used for further enhancement. An analysis of experimental results shows that the proposed algorithm inherits the good traits of edge preservation under lower time cost.

Copyright
© 2023 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 2022 International Conference on Bigdata Blockchain and Economy Management (ICBBEM 2022)
Series
Atlantis Highlights in Intelligent Systems
Publication Date
20 December 2022
ISBN
978-94-6463-030-5
ISSN
2589-4919
DOI
10.2991/978-94-6463-030-5_93How to use a DOI?
Copyright
© 2023 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Yuxuan Song
PY  - 2022
DA  - 2022/12/20
TI  - A New Time-Effective Weighted Interpolation Method for Color Filter Array Demosaicking
BT  - Proceedings of the 2022 International Conference on Bigdata Blockchain and Economy Management (ICBBEM 2022)
PB  - Atlantis Press
SP  - 945
EP  - 956
SN  - 2589-4919
UR  - https://doi.org/10.2991/978-94-6463-030-5_93
DO  - 10.2991/978-94-6463-030-5_93
ID  - Song2022
ER  -