Research and Design of Color Restoration Algorithm for Demosaicing Bayer Pattern Images

Abstract:

This paper analyses the process of obtaining real color image based on a single CCD/CMOS sensor. Bayer CFA Interpolation algorithm and White Balance algorithm are presented. The proposed interpolation algorithm which can obtain better color image and is easier to implement by hardware is provided. In order to cancel chromatic aberration, one White Balance algorithm which aims at sequential image is presented and process of FPGA design is given. Experimental results show that the design works normally. The color of corrected picture is vivid compared to the real world.

• Periodical: Applied Mechanics and Materials (Volumes 130-134)
• Pages: 745-751
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.130-134.745
• Online since: October 2011
• Authors: Bo Zhu, De Sheng Wen, Wei Gao, Zong Xi Song, Hua Li
• Keywords: Bayer, CCD/CMOS Image Sensor, Interpolation Algorithm, White Balance

References

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[8] J.E. Adams Jr: Design of practical color filter array interpolation algorithm for digital cameras. in Proc. SPIE, vol. 3028, D. Sinha, Ed., Bellingham, WA, 1997. (a) (b) (c) Fig. 7 Bayer pattern raw image. (a)red, (b)green, (c)blue (a) (b) (c) (d) Fig. 8 Interpolation result of mentioned interpolation algorithm. (a) Result of Pixel Combination algorithm, (b) result of Bilinear Interpolation algorithm, (c) result of the proposed interpolation algorithm, (d) detail of the interpolation result. Fig. 9 Interpolation result of real-world image Fig. 10 The result of white balance by proposed interpolation algorithm.

DOI: 10.3724/sp.j.1087.2013.00871