基于Freeman链码的图像中多个区域面积的计算方法

Method for calculating areas of multiple regions in image based on freeman chain code

在进行图像处理时,经常需要求图像中的多个区域的面积。对同时求取一幅图像中多个区域的面积的方法进行了研究。首先利用Freeman链码方式对目标区域求取边界链码,然后基于边界链码及制定的上边界和下边界的判定规则表,求取各区域的面积。该方法具有简单快速的特点。

The areas of multiple regions in an image are required to be calculated in many cases of image processing,a method to obtain these areas is presented to meet the requirement.Freeman chain code is employed to depict the boundary of target regions.The areas of regions are calculated from the boundary chain codes and upper bounds or lower bounds determined by decision rule table proposed in this paper.The approach is characterized by simpleness and quickness