19 lines
642 B
Matlab
Executable File
19 lines
642 B
Matlab
Executable File
function eigenfaces_scatter(images, indices);
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[w, h, nExpressions, nIndividuals]=size(images);
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X=reshape(images,[w*h,nIndividuals*nExpressions]);
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avg=mean(X,2);
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Xd=bsxfun(@minus,X,avg);
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[U,S,V]=svd(Xd,0);
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scores=U(:,indices)'*Xd;
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%normalize scores and samples
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%scores=bsxfun(@rdivide,scores,sqrt(sum(abs(scores).^2)));
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if length(indices) == 3
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scatter3(scores(1,:),scores(2,:),scores(3,:),50*ones(size(scores(1,:))),kron(1:nIndividuals,ones(1,nExpressions)));
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elseif length(indices) == 2
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scatter(scores(1,:),scores(2,:),50*ones(size(scores(1,:))),kron(1:nIndividuals,ones(1,nExpressions)));
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else
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error('wrong indices size');
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end
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