%AUTHOR?:?RAJJAN?SINGH?THAKUR?（VIT?UNIVERSITY）
%DATE?:14/2/09

%FUNCTION?TO?GET?CONTOUR?PIXELS?OF?A?BINARY?IMAGE


%INPUT?PARAMETERS?ARE?BINARY?IMAGE?AND?A?ROW?AND?COL?NO?OF
%ANY?1?PIXEL?ON?THE?CONTOUTR
%

%OUTPUT?PARAMETERS?ARE:
%1.KNEW:??CONTOUR?IMAGE?OF?THE?GIVEN?BINARY?IMAGE
%2.M:??[1x2]?VECTOR?CONTAINING?X?AND?Y?COORDINATES?OF?CONTOUR?BACKGROUND?PIXELS
%3.N:??[1X2]?VECTOR?CONTAINING?X?AND?Y?COORDINATES?OF?CONTOUR?object?PIXELS

function?[knewmn]?=?contour_b（arowcol）
i=row;
j=col;
loop=0;
count=0;
counto=0;
k=zeros（size（a1）size（a2））;
i=row;
j=?col;
%counto（1:）=[rowcol];
b=[1?2
????4?3];
z=1;
while（z）
????if?（a（ij）==1）
????????counto=counto+1;
????????n（counto:）=[ij];?
????????b=rot90（b）;
????????d=?b（11）;
????????switch（d）
????????case?1
????????????i=i;
????????????j=j+1;
????????????%n（counto:）=[ij];?
????????????
????????????%k（ij）=255;
????????????
????????case?2
????????????i=i-1;
????????????j=j;
????????????%n（counto:）=[ij];?
????????????%k（ij）=255;
????????????
????????case?3
????????????i=i;
????????????j=j-1;
????????????%n（counto:）=[ij];?
????????????%k（ij）=255;
????????????
????????case?4
????????????i=i+1;
????????????j=j;
????????????%n（counto:）=[ij];?
????????????%k（ij）=255;
????????otherwise
????????????[]
????????end
????????
????else
????????k（ij）=255;
????????count=count+1;
????????m（count:）=[i?j];
????????b=rot90（b-1）;
????????d=b（11）;
????????%UNCOMMENT?IMSHOW?COMMAND?IF?U?R?USING?MATLAB?6.5?TO?SEE?HOW?REGION?IS?GROWING
????????%imshow（k）
????????switch（d）
????????case?1
????????????i=i;
????????????j=j+1;
????????????%k（ij）=255;
????????????%m（count:）=[i?j];
????????????%imshow（k）
????????????
????????????
????????case?2
????????????i=i-1;
????????????j=j;
????????????%k（ij）=255;
????????????%m（count:）=[i?j];
????????????%imshow（k）
????????????
????????case?3
????????????i=i;
????????????j=j-1;
????????????%k（ij）=255;
????????????%m（count:）=[i?j];
????????????%imshow（k）
????????????
????????case?4
????????????i=i+1;
????????????j=j;
????????????%k（ij）=255;
????????????%m（count:）=[i?j];
????????????%mshow（k）
????????????
????????otherwise
????????????[]
????????end
????end
????
????if?（i==row?&?j==col?&?d==1）
????????z=0;
????end
end
knew=mat2gray（k）;
imshow（knew）
title（‘contour?of?given?image?（mixed?neihbourhood）‘）;
figureimshow（a）

%[xnyn]=find（k）;
%?knew2=eightneighbour（knewn）;
%?knew3=mat2gray（knew2）
%?figureimshow（knew3）
%?title（‘contour?image?with?eight?neighbourhood‘）

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

?????文件??????11546??2010-05-21?11:28??二值圖像的輪廓跟蹤\1.jpg

?????文件???????8567??2010-05-21?11:28??二值圖像的輪廓跟蹤\2.jpg

?????文件??????20350??2010-05-21?11:28??二值圖像的輪廓跟蹤\3.jpg

?????文件??????10552??2010-05-21?11:28??二值圖像的輪廓跟蹤\4.jpg

?????文件??????10896??2010-05-21?11:29??二值圖像的輪廓跟蹤\5.jpg

?????文件??????20154??2010-05-21?11:29??二值圖像的輪廓跟蹤\6.jpg

?????文件??????19953??2010-05-21?11:29??二值圖像的輪廓跟蹤\7.jpg

?????文件???????5320??2006-06-08?15:25??二值圖像的輪廓跟蹤\apple-12.JPG

?????文件???????2617??2009-02-24?01:24??二值圖像的輪廓跟蹤\contour_b_trial_2.m

?????文件???????1820??2009-02-24?01:22??二值圖像的輪廓跟蹤\contour_code_2.m

?????文件???????1272??2009-02-24?01:30??二值圖像的輪廓跟蹤\eightneighbour.m

?????文件???????1268??2009-02-24?01:37??二值圖像的輪廓跟蹤\fourneighbour2.m

?????文件???????1695??2010-05-21?11:26??二值圖像的輪廓跟蹤\labassign2scrpito.m

?????文件???????1132??2009-02-24?01:23??二值圖像的輪廓跟蹤\plot_contour_code.m

?????目錄??????????0??2016-02-27?17:14??二值圖像的輪廓跟蹤

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

???????????????117142????????????????????15