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《Computer Applications and Software》 2009-07
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PARALLEL COLOUR INTERPOLATION ALGORITHM BASED ON COLOUR DIFFERENCE SPACE AND ITS IMPLEMENTATION ON AN FPGA SYSTEM

Xu Cai1 Bao Jilong1,2 Zheng Dechun21(School of Information Science and Engineering,East China University of Science and Technology,Shanghai 200237,China)2(College of Electronic and Information Engineering,Ningbo University of Technology,Ningbo 315016,Zhejiang,China)  
The work focuses on overcoming the conflict between the cost of hardware resource and the quality of the restored colour image that most conventional colour interpolation algorithms exist,a parallel colour interpolation algorithm based on colour difference space is presented in this regard.The algorithm has a premise that the colour differences among the pixels in a diamond field of 5 x 5 are almost the same,it uses the correlation interpolation between the known colour component of existing images and the different colour's component to obtain the unknown colour component.The algorithm can be realized by the powerful parallel computing ability of FPGA.MATLAB simulations verified the algorithm's validity and feasibility.Besides,the timing analysis shows that it is possible to have the excellent quality of restored colour image without costing much hardware resource.
【Fund】: 浙江省科技厅基金项目(2007R40G229003)
【CateGory Index】: TP391.41
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