Title
A simple gray-edge automatic white balance method with FPGA implementation
Abstract
Automatic white balance is one of the most important functions in digital cameras. In addition to effectively correct color bias, the automatic white balance technology should also be fit for resource-constrained hardware and meet its real-time requirements. Based on gray-edge hypothesis, this paper proposes a simple automatic white balance method using image horizontal down-sampling with the averaging filter and horizontal first-order difference on Bayer image, and discusses its algorithm flow on FPGA. The test results show that the proposed method can correct image color bias powerfully. Moreover, the analysis of resource usage on FPGA indicates that the method consumes less hardware resource and achieves high real-time capability, and its parameter selection is unrelated with resource consumption.
Year
DOI
Venue
2015
10.1007/s11554-012-0318-x
J. Real-Time Image Processing
Keywords
DocType
Volume
automatic white balance,fpga,gray-edge,real-time capability
Journal
10
Issue
ISSN
Citations 
2
1861-8219
3
PageRank 
References 
Authors
0.55
14
5
Name
Order
Citations
PageRank
Xin Tan130.89
Shiming Lai2213.02
Bin Wang331.22
Maojun Zhang431448.74
Zhihui Xiong5196.40