MATLAB在平面图形边界信息提取中的应用

从平面图形中提取边界信息,是一项重要的数据处理技术,也是计算平面图形边界长度的基础.利用MATLAB进行平面图形边界信息提取的方法,处理过程依次为:保存为图像文件;调入MATLAB;确定边界像素坐标;边界像素坐标转为极坐标,把极角值安升序进行排列后再转换为直角坐标;最后把边界像素坐标实行线性变换转换为实际坐标.这里只对图像边界是简单闭曲线的情况进行了论述,对复杂的边界情况可以进行图像分割转换为几个边界为简单闭曲线的情况分别进行处理.

MATLAB Application in Planar Graph Boundary Information Extraction

To extract boundary information from the planar graph is an important data processing technology and is the foundation of calculating the boundary length of the planar graph.The processes of the method in using MATLAB to extract boundary information in turn are saving as the image file,tuning into MATLAB,determining the boundary pixel coordinates,trans ferring pixel coordinates to polar coordinates,placing the elements of the polar angle values in ascending order and then tuning them to rectangular coordina...