Next Article in Journal
Experimental and Simulation Identification of Xanthohumol as an Inhibitor and Substrate of ABCB1
Previous Article in Journal
Experimental Study of Ground Subsidence Mechanism Caused by Sewer Pipe Cracks
Article Menu
Issue 5 (May) cover image

Export Article

Open AccessArticle

An Effective Directional Residual Interpolation Algorithm for Color Image Demosaicking

School of Mechanical, Electrical and Information Engineering, Shandong University, Weihai 264209, China
*
Author to whom correspondence should be addressed.
Appl. Sci. 2018, 8(5), 680; https://doi.org/10.3390/app8050680
Received: 12 March 2018 / Revised: 20 April 2018 / Accepted: 21 April 2018 / Published: 26 April 2018
  |  
PDF [2881 KB, uploaded 3 May 2018]
  |  

Abstract

In this paper, we propose an effective directional Bayer color filter array (CFA) demosaicking algorithm based on residual interpolation (RI). The proposed directional interpolation algorithm aims to reduce computational complexity and get more accurate interpolated pixel values in the complex edge areas. We use the horizontal and vertical weights to combine and smooth color difference estimations. Compared with four directional weights in minimized Laplacian residual interpolation, the proposed algorithm not only guarantees the quality of color images but also reduces the computational complexity. Generally, the directional estimations may be inaccurately calculated because of the false edge information in irregular edges. We alleviate it by using a new method to calculate the directional color difference estimations. Experimental results show that the proposed algorithm provides outstanding performance compared with some previous algorithms, especially in the complex edge areas. In addition, it has lower computational complexity and better visual effect. View Full-Text
Keywords: image demosaicking; color filter array (CFA); Bayer pattern; directional interpolation; residual interpolation (RI) image demosaicking; color filter array (CFA); Bayer pattern; directional interpolation; residual interpolation (RI)
Figures

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Yu, K.; Wang, C.; Yang, S.; Lu, Z.; Zhao, D. An Effective Directional Residual Interpolation Algorithm for Color Image Demosaicking. Appl. Sci. 2018, 8, 680.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Appl. Sci. EISSN 2076-3417 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top