code_book

    vector<mat> train_data_combined, code_book_avg(code_book_size);
    vector< vector<mat> > code_book(10);

    cout << "Generating Code-book..." << endl;
    for(int j=0; j<code_book_size; j++)
        code_book_avg[i].zeros(1, DIM);

    for(int i=0; i<10; i++)
    {
        kmeans(code_book_size, train_data_combined, dummy, DIM, train_data_combined.size(), code_book[i]);
        for(int j=0; j<code_book_size; j++)
            code_book_avg[j] = code_book_avg[j] + code_book[i][j];
    }

    for(int j=0; j<code_book_size; j++)
        code_book_avg[j] = code_book_avg[j]/10;
    cout << "Code-book generated..." << endl;