Getting Error in code

function[g,nr,si,ti]=regiongrow(f,s,t)
f=double(f);
if numel(s)==1
    si=f==s;
    s1=s;
else
    si=bwmorph(s,'shrink',inf);
    j=find(si);
    s1=f(j);    % Logical indexing is better than find
end
ti=false(size(f));
for k=1:length(s1)
    seedvalue=s1(k);
    s=abs(f-seedvalue)<=t;
    ti=ti|s;
end
[g,nr]=bwlabel(imreconstruct(si,ti));

Getting Error

j=find(si);

      s1=f(j);    % Logical indexing is better than find

Please Help

Answer 1

[Walter Roberson]

That is not an error, it is advice. You can improve your code speed by using

s1 = f(si);

Note: I suspect that your code is not correct for this case, but I do not understand it well enough to be sure.