function?[?output?]?=?edge（?Ig?）
%該函數實現圖像的邊緣提取功能（此處采用八鄰域方法）

%輸入Ig:輸入二值圖像

%輸出output:輸出檢測到的圖像邊緣
imedge?=?zeros（size（Ig））;
[mn]=size（Ig）;
%?定義數組實現圖像八鄰域操作從左上角像素判斷
ed=[-1?-1;0?-1;1?-1;1?0;1?1;0?1;-1?1;-1?0];
%對圖像進行遍歷操作
for?i=2:m-1
????for?j=2:n-1
????????if?Ig（ij）?==?1
????????????for?k=1:8
????????????????ii?=?i+ed（k1）;
????????????????jj?=?j+ed（k2）;
????????????????if?Ig（iijj）?==?0
????????????????????imedge（ij）?=?1;
????????????????end
????????????end
????????end
????????
????end
end

output?=?imedge;


????



end

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????639??2018-05-11?20:05??boundary?and?perimeter\edge.m

?????文件???????1563??2018-05-11?21:25??boundary?and?perimeter\main.m

?????文件??????30288??2018-05-11?20:09??boundary?and?perimeter\test.jpg

?????文件??????12884??2018-05-11?20:18??boundary?and?perimeter\test2.jpg

?????目錄??????????0??2018-05-11?21:32??boundary?and?perimeter

-----------?---------??----------?-----??----

????????????????45374????????????????????5