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

Answer 1

[Matt J]

Yes, you can loop backward by doing

 for i=m:-1:1

etc...

[Sharen H]

Thank a lot