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    题名: Optimal colourization for greyscale images
    作者: Lin, Hwei-Jen;Yeh, Jih-Pin;Wu, Chun-Yi
    贡献者: 淡江大學資訊工程學系
    关键词: Linear Programming;Ycbcr Colour Space;Linear Interpolation;Rgb Colour Space;Optimal Colourization;expansion
    日期: 2009-04
    上传时间: 2010-03-26 18:53:55 (UTC+8)
    出版者: Leeds: Maney Publishing
    摘要: This paper proposes a user friendly interactive colourization system that utilizes iterative region expansion and linear programming to carry out colourization. The region corresponding to each scribbled colour is iteratively expanded using a sequence of increasing threshold values. Usually a few pixels remain unassigned to any colour region after this stage, each of which is then simply assigned to the nearest region based on an intrinsic distance measure. The optimal colours for the brightest pixel and the darkest pixel in each region are determined by employing linear programming, and then the whole region is colourized using linear interpolation. The proposed system provides several colourization modes users can select from. The user simply needs to scribble on the given greyscale image and select the colouring mode they want. The experimental results show that the proposed system provides natural and satisfactory colouring results.[ABSTRACT FROM AUTHOR]
    關聯: Imaging Science Journal 57(2), pp.61-68
    DOI: 10.1179/174313109X373657
    显示于类别:[資訊工程學系暨研究所] 期刊論文

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