matlab - 实施 kmeans 聚类时出错

Question

有一个灰度图像A，我想应用 kmeans 聚类K=2，MATLAB 给我以下代码的错误，如何解决？

[idx,ctrs] = kmeans(im2double(A),2);
??? Error using ==> minus
Number of array dimensions must match for binary array op.

Error in ==> kmeans>onlineUpdate at 576
        Del(:,i) = (m(i) ./ (m(i) + sgn)) .* sum((X - C(repmat(i,n,1),:)).^2, 2);

Error in ==> kmeans at 341
        converged = onlineUpdate(); 

Answer 1

您需要将图像分解为“矢量”组件才能使用 Matlab kmeans。请参阅此处的示例：http: //imageprocessingblog.com/ ?p=178