How to process a matrix

Question

Sharen H 2013-8-16

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/84892-how-to-process-a-matrix

clc
clear all
BW=[ 0 0 0 0 1 0 0 0 0 1 0 0 0
      0 0 0 0 1 0 0 0 0 1 0 0 0
      0 0 0 0 1 0 0 0 0 1 0 0 0
      1 0 0 0 1 0 0 0 0 1 0 0 0]
[m,n]=size(BW)
x=1;
y=1;
count=0;
edgedet=edge(BW,'log');
for i=1:m
for j=1:n-1
if(edgedet(i,j)~=edgedet(i,j+1))
     c(x)= i;
     x= x+1;
     d(y)=j;
        y=y+1;
      break;
        count=count+1;
end
end
end
plot(c,d)

is it possible to do the search from the other side of the matrix as we do in C programming

for i=m:1
for j=n:2
if(edgedet(i,j)~=edgedet(i,j-1))
     c(x)= i;
     x= x+1;
     d(y)=j;
        y=y+1;
      break;
        count=count+1;
end
end
end