Error when trying to create a loop for k-means

Hi all,

I'm trying to loop for a given value of k for a k-means segmentation. The following is the documentation code:

mask1 = pixelLabels==1;
cluster1 = img .*uint8(mask1);
imshow(cluster1)
title ('Objects in Cluster 1');

mask2 = pixelLabels==2;
cluster2 = img .* uint8(mask2);
imshow(cluster2)
title('Objects in Cluster 2');

mask3 = pixelLabels==3;
cluster3 = img .* uint8(mask3);
imshow(cluster3)
title('Objects in Cluster 3');

And this is my attempt at turning it into a loop:

imshow(pixelLabels,[])
title('Image Labeled by Cluster Index');
 for i = 1 : k
     maskID = strcat('mask', k);
     clusterID = strcat('cluster', k);
     maskID = pixelLabels == k
     clusterID = img.*uint8(maskID);
     imshow(clusterID)
     title('Objects in Cluster ', num2str(clusterID));
 end
 

I not only get an error (incorrect number of arguments) but I also get an incorrect output (only 1 black image).

Any help would be much appreciated!

Answer 1

[KALYAN ACHARJYA]

%Defined 
img=
pixelLabels=
k=
for i = 1 : k
     maskID = strcat('mask', 1);
     clusterID = strcat('cluster', 1);
     maskID = pixelLabels == k
     clusterID = img.*uint8(maskID);
     imshow(clusterID)
     title(['Objects in Cluster ',num2str(i)]);
 end

[Teshan Rezel]

thanks, this seems to work! Do you know how I can plot each figure seperately, once each iteration of the loop ends please?

[KALYAN ACHARJYA]

%Defined 
img=
pixelLabels=
k=
for i = 1 : k
     maskID = strcat('mask', 1);
     clusterID = strcat('cluster', 1);
     maskID = pixelLabels == k
     clusterID = img.*uint8(maskID);
     figure,imshow(clusterID); % Figure here
     title(['Objects in Cluster ',num2str(i)]);
 end