pkg load signal

% Load training data variables
dctDims = 25:15:100;
ks = 1:2:7;
accuracy = zeros(length(ks), length(dctDims));

for dctDim = 25:15:100;
    face_recog_knn_train([1 40], dctDim);
    load("raw_data.mat");
    for k = 1:2:7
        hits = 0;
        for subject = 1:40
            ((dctDim-25)/15 + ((k-1)/2 + subject/40)/ length(ks)) / length(dctDims)
            for im = 6:10
                facePath = ["faces/att_faces/s" num2str(subject) '/' num2str(im) ".pgm"];
                bestGuess = knnFace(facePath, k, trdata_raw, dctDim, trclass);
                if bestGuess == subject
                    hits = hits + 1;
                end
            end
        end
        accuracy((k+1)/2, (dctDim-25)/15 + 1) = hits/200;
    end
end

surf(dctDims, ks, accuracy);