点阵图形的矢量化研究及其算法

    On Extracting Vectors from Raster Image and Its Algorithm

    • 摘要: 根据Freeman H提出的直线链码必须满足的3个准则及吴立德的直线链码判定算法,建立了级直线、级折点的概念,给出了直线链码的判定定理。在此基础上,实现了点阵图形的矢量化算法。此算法的优点是,处理速度快,精度也很高。

       

      Abstract: The main problem in computer-scan-input of line drawings is to extract vectors from raster image. In this article, the concepts of graded-turning-point and graded-straightline are established and the theorem of testing if a chain-code is of a line is provided. Also the algorithm for extracting vectors from raster image is given, which has the advantages of high speed and accuracy.

       

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