我正在学习如何使用kmean聚类来分割颜色,就像matlab 2015a中的示例一样。但每次运行代码时,我想要的颜色都在不同的群集中。例如,对于第一次运行,它将显示黄色在群集1中,蓝色在群集2中。当我再次运行它时,它们将切换到不同的群集。如何使黄色和蓝色在特定的群集中,即使我一次又一次地运行它?请帮帮我。在此先感谢为什么kmean颜色分割每次都显示不同的颜色?
这是我使用的代码:
[FileName,PathName] = uigetfile('*.jpg','Select the MATLAB code file');
he1= imread(FileName);
cform = makecform('srgb2lab');
lab_he = applycform(he1,cform);
figure (2)
imshow (lab_he)
ab = double(lab_he(:,:,2:3));
nrows = size(ab,1);
ncols = size(ab,2);
ab = reshape(ab,nrows*ncols,2);
nColors = 3;
% repeat the clustering 3 times to avoid local minima
[cluster_idx, cluster_center] = kmeans(ab,nColors,'distance','sqEuclidean', ...
'Replicates',3);
pixel_labels = reshape(cluster_idx,nrows,ncols);
figure (3)
imshow(pixel_labels,[]), title('image labeled by cluster index');
segmented_images = cell(1,3);
rgb_label = repmat(pixel_labels,[1 1 3]);
for k = 1:nColors
color = he1;
color(rgb_label ~= k) = 0;
segmented_images{k} = color;
end
%%
figure (4)
imshow(segmented_images{1}), title('objects in cluster 1');
%%
figure (5)
imshow(segmented_images{2}), title('objects in cluster 2');
%%
figure (6)
imshow(segmented_images{3}), title('objects in cluster 3');
%%
a = im2bw (segmented_images{2},0.05);
figure (7)
imshow (a);
b = im2bw (segmented_images{3},0.05);
figure (8)
imshow (b);
在我的情况,与黄色的区域应该是在第2组和蓝色区域的面积应在集群3.请出示我该怎么做
即时通讯对不起,先生,你能向我解释这是如何工作的吗? –
@badrulhisham我已经更新了答案,希望能让它更加清晰 – Suever
非常感谢您的帮助先生,我会尽力将这些写入我的编码 –