how to display the class result in knn classification?

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youb mr 2020-2-24

hello everyone

I would like to display the 4 class of image classification results with KNN but I always got 2 class how a can display the 4 class this is my code :

C=[1 1 1 1 1 2 2 2 2 2 3 3 3 3 3 4 4 4 4 4 ];

T=[MA1;MA2;MA3;MA4;MA5;MB1;MB2;MB3;MB4;MB5;MC1;MC2;MC3;MC4;MC5;MD1;MD2;MD3;MD4;MD5];

model=ClassificationKNN.fit(T,C,'NumNeighbors',2);

[~,result1]=predict(model,x);

img1= reshape(result1(:,2),nn,mm);

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