I need to cluster different colors using k-means clustering algorithm.
when i use function like this with k=4 for 5 colors image.
It will end up with empty cluster at iteration 1 and no partition. If i run multiple times,then at one time it will partition the colors .
then if i change above function like this [cluster_idx cluster_centre]=kmeans(inputImg,k); and then also end up with same result.
Why it showing like this even though image is having 5 colors..? How to debug this problem..? Does any one know please help me out.