Computer Science ›› 2017, Vol. 44 ›› Issue (7): 289-292.doi: 10.11896/j.issn.1002-137X.2017.07.052

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Implementation of Time-Spatial Domain Retinex Color Correction Algorithm on ZedBoard

ZHOU Jia-hao, LI Pei-yue and YANG Huai-jiang   

  • Online:2018-11-13 Published:2018-11-13

Abstract: The time-spatial domain retinex color correction algorithm based on white balance was proposed.Hardware platform was designed owing to its high computational complexity and bad real-time quality to realize the algorithm.ZedBoard uses resources of PL and PS to execute white balance processing,extracts light information,and then achieves retinex color correction algorithm efficiently.Eventually projector exports reflection coefficient information images representing objects inherent color.Color data of projection light are collected by color light meter named CL200A from Konica Minolta.Data show that the algorithm spreads color gamut of images to make it approach the standard.And white pixels after being corrected are closer to the standard white pixels.Color resolution is improved and color cast is solved.Compared with time cost of the algorithm’s implementation on PCs,time cost on ZedBoard is reduced about two orders of magnitude.

Key words: Retinex,White balance,Color correction,Embedded,OpenCV

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