need function 'bwlabel' but without image toolbox.Is there any option?

I don't have license for image toolbox.Is there any way to do this function? Maybe source code ? I don't know. Thank u for helping :D Wish u a nice day

Answer 1

[Walter Roberson]

http://www.mathworks.com/help/images/ref/bwlabel.html

References

[1] Haralick, Robert M., and Linda G. Shapiro, Computer and Robot Vision, Volume I, Addison-Wesley, 1992, pp. 28-48.

So you can look for that book and read the algorithm there and program it.

Or you could purchase a license for the Image Processing Toolbox.

Answer 2

[Adam Danz]

I recently had to solve this problem without Image Processing Toolbox but this solution will only work for vector inputs.

% vector of grouped 1s, separated by 0s
v = mod(1:100,10) > 0;

% Solve without Image Processing Toolbox
vcs = cumsum(diff([0,v]) == 1);  % if v is a column vector: [0;v]
L = zeros(size(v)); 
L(v) = vcs(v);

% Solve using Image Processing Toolbox
L2 = bwlabel(v);

% Compare outputs
isequal(L,L2)   % = TRUE, they match