位图矢量化的处理算法研究

Research of Algorithm for Bitmap’s Vectorization

摘要: 图像主要分为位图和矢量图，矢量图可以任意放缩，图形不会有任何改变。而位图一旦放大后会产生较为明显的模糊，线条也会出现锯齿边缘等现象，可能会失去图像原有的边缘拓扑结构。矢量图虽然能对图形进行精确描述，但在以像素为基本显示单元的显示器或打印机上是无法直接表现，给实际的应用造成了很大的不便。本文研究了一种位图转化为矢量图的算法，通过MATLAB编程给出了具体图片算例的矢量化过程。

Abstract: Image is mainly divided into bitmap and vector diagram. Vector diagram can be arbitrarily zooming, while graphics will not have any change. But once bitmap is amplified, it will produce obvious vagueness, line will also show the phenomenon such as serrated edge, and the edge of the image of the original topology may be lost. Although vector diagram can make accurate description of graphics, it can not be output directly on the display or printer which uses pixels as the basic display unit. It caused great inconvenience to the actual application. In this paper, we studied an algorithm for bitmap’s vectorization, and the vectorization process of the picture sample was given by MATLAB software.