tuxbjie3.m

来自「包括MATLAB7.0实用指南（下）中所有例子的源代码」· M 代码 · 共 12 行

I = imread('coins.png');
imshow(I);
bw=im2bw(I);
%imview(bw)
dim=size(bw)
col=round(dim(2)/2)-90
row=min(find(bw(:,col)))
b=bwtraceboundary(bw,[row col],'N')
figure;
imshow(I)
hold on
plot(b(:,2),b(:,1),'g','linewidth',2)