16-12.m

来自「文件是学习matlab过程中关于图形图像处理的源程序」· M 代码 · 共 9 行

BW = imread('circbw.tif'); 
imshow(BW)
SE = ones(5);
BW2 = imdilate(BW,SE);
%图像膨胀
figure,imshow(BW2)
increase = (bwarea(BW2) - bwarea(BW))/bwarea(BW)
%面积扩大的比率