How can I get constant clusters using this code?

Question

Mohammad Farhad Aryan 2020-3-8

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/509752-how-can-i-get-constant-clusters-using-this-code

评论： ams 2022-10-3

I am using this code but getting different result for the desired cluster. Using the following code, the desired cluster for image hand.jpg is cluster 1 but for foot.jpg is cluster 4. I want the desired cluster number for every image not to be changed or any other ways that I can automatically pick the desired cluster for further analysis if the desired cluster number is changing.

I = imread(['ColorSpace\ForExperiment\foot.jpg']);
lab_he = rgb2lab(I);
% Extract first channel (L)
ab = lab_he(:, :, 2:3);
% Convert to data type single
ab = im2single(ab);
% Perform clustering using K-Means
nColors = 4;
pixel_labels = imsegkmeans(ab, nColors, "NumAttempts", 5);
imshow(pixel_labels, []);
% Display each cluster with their objects
mask1 = pixel_labels == 1;
cluster1 = I .* uint8(mask1);
imshow(cluster1); title('Objects in cluster1');
% Display second cluster's objects
mask2 = pixel_labels == 2;
cluster2 = I .* uint8(mask2);
imshow(cluster2); title('Objects in cluster2');
% Display third cluster's objects
mask3 = pixel_labels == 3;
cluster3 = I .* uint8(mask3);
imshow(cluster3); title('Objects in cluster3');
% Display fourth cluster's objects
mask4 = pixel_labels == 4;
cluster4 = I .* uint8(mask4);
imshow(cluster4); title('Objects in cluster4');