RTL Implementation of White Balance Algorithm Based on ZYNQ

Zhou Jie(Chengdu University of Technology)
Li Keyao(Chengdu University of Technology)

Abstract

 In view of the common automatic white balance algorithm complexity is too high and the characteristics of the hardware to realize real-time. This paper combines gray world model and the advantage of white point detection algorithm, an adaptive control process is used to calculate gain coefficient and to picture the three-component white balance correction. On this basis to realize the automatic white balance based on the zynq RTL implementation of the algorithm. Compared with the traditional method, the cost of hardware is reduced, and the efficiency and flexibility of the algorithm are improved. Experimental results show that the algorithm can run smoothly and realize accurate correction of off-color images.

Keywords

White balance；ZYNQ；RTL；Gray world

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DOI: http://dx.doi.org/10.26549/met.v3i2.3080