function kmeans is not able to process uint8 what should i do?

1 view (last 30 days)
I am using kmeans function and getting following error
??? Error using ==> plus Integers can only be combined with integers of the same class, or scalar doubles.
Error in ==> kmeans>distfun at 704 D(:,i) = D(:,i) + (X(:,j) - C(i,j)).^2;
Error in ==> kmeans at 313 D = distfun(X, C, distance, 0);
What should i do know

Answers (1)

David Young
David Young on 2 Mar 2015
Convert your date to double before passing it to kmeans. For example, if Xi is your uint8 data array,
Xd = double(Xi);
idx = kmeans(Xd, k);
If you have very large arrays and so run out of memory, consider using single instead of double.
  2 Comments
Poonam
Poonam on 2 Mar 2015
done as you said but now getting ??? Error using ==> minus Number of array dimensions must match for binary array op.
Error in ==> kmeans>onlineUpdate at 557 Del(:,i) = (m(i) ./ (m(i) + sgn)) .* sum((X - C(repmat(i,n,1),:)).^2, 2);
Error in ==> kmeans at 324 converged = onlineUpdate();
David Young
David Young on 2 Mar 2015
Sorry, there isn't enough information to solve this new problem. I suggest you post a new question, showing the code that calls kmeans.

Sign in to comment.

Products

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!