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<html><!-- Created using the cpp_pretty_printer from the dlib C++ library.  See http://dlib.net for updates. --><head><title>dlib C++ Library - graph_labeler.h</title></head><body bgcolor='white'><pre>
<font color='#009900'>// Copyright (C) 2012  Davis E. King ([email protected])
</font><font color='#009900'>// License: Boost Software License   See LICENSE.txt for the full license.
</font><font color='#0000FF'>#ifndef</font> DLIB_GRAPH_LaBELER_Hh_
<font color='#0000FF'>#define</font> DLIB_GRAPH_LaBELER_Hh_

<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='graph_labeler_abstract.h.html'>graph_labeler_abstract.h</a>"
<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='../matrix.h.html'>../matrix.h</a>"
<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='../string.h.html'>../string.h</a>"
<font color='#0000FF'>#include</font> <font color='#5555FF'>&lt;</font>vector<font color='#5555FF'>&gt;</font>
<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='find_max_factor_graph_potts.h.html'>find_max_factor_graph_potts.h</a>"
<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='../svm/sparse_vector.h.html'>../svm/sparse_vector.h</a>"
<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='../graph.h.html'>../graph.h</a>"

<font color='#0000FF'>namespace</font> dlib
<b>{</b>

<font color='#009900'>// ----------------------------------------------------------------------------------------
</font>
    <font color='#0000FF'>template</font> <font color='#5555FF'>&lt;</font>
        <font color='#0000FF'>typename</font> vector_type 
        <font color='#5555FF'>&gt;</font>
    <font color='#0000FF'>class</font> <b><a name='graph_labeler'></a>graph_labeler</b> 
    <b>{</b>

    <font color='#0000FF'>public</font>:

        <font color='#0000FF'>typedef</font> std::vector<font color='#5555FF'>&lt;</font><font color='#0000FF'><u>bool</u></font><font color='#5555FF'>&gt;</font> label_type;
        <font color='#0000FF'>typedef</font> label_type result_type;

        <b><a name='graph_labeler'></a>graph_labeler</b><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>
        <b>{</b>
        <b>}</b>

        <b><a name='graph_labeler'></a>graph_labeler</b><font face='Lucida Console'>(</font>
            <font color='#0000FF'>const</font> vector_type<font color='#5555FF'>&amp;</font> edge_weights_,
            <font color='#0000FF'>const</font> vector_type<font color='#5555FF'>&amp;</font> node_weights_
        <font face='Lucida Console'>)</font> : 
            edge_weights<font face='Lucida Console'>(</font>edge_weights_<font face='Lucida Console'>)</font>,
            node_weights<font face='Lucida Console'>(</font>node_weights_<font face='Lucida Console'>)</font>
        <b>{</b>
            <font color='#009900'>// make sure requires clause is not broken
</font>            <font color='#BB00BB'>DLIB_ASSERT</font><font face='Lucida Console'>(</font>edge_weights.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>|</font><font color='#5555FF'>|</font> <font color='#BB00BB'>min</font><font face='Lucida Console'>(</font>edge_weights<font face='Lucida Console'>)</font> <font color='#5555FF'>&gt;</font><font color='#5555FF'>=</font> <font color='#979000'>0</font>,
                    "<font color='#CC0000'>\t graph_labeler::graph_labeler()</font>"
                    <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\t Invalid inputs were given to this function.</font>"
                    <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\t min(edge_weights): </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font color='#BB00BB'>min</font><font face='Lucida Console'>(</font>edge_weights<font face='Lucida Console'>)</font>
                    <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\t this:              </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font color='#0000FF'>this</font>
                    <font face='Lucida Console'>)</font>;
        <b>}</b>

        <font color='#0000FF'>const</font> vector_type<font color='#5555FF'>&amp;</font> <b><a name='get_edge_weights'></a>get_edge_weights</b> <font face='Lucida Console'>(</font>
        <font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> <b>{</b> <font color='#0000FF'>return</font> edge_weights; <b>}</b>

        <font color='#0000FF'>const</font> vector_type<font color='#5555FF'>&amp;</font> <b><a name='get_node_weights'></a>get_node_weights</b> <font face='Lucida Console'>(</font>
        <font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> <b>{</b> <font color='#0000FF'>return</font> node_weights; <b>}</b>

        <font color='#0000FF'>template</font> <font color='#5555FF'>&lt;</font><font color='#0000FF'>typename</font> graph_type<font color='#5555FF'>&gt;</font>
        <font color='#0000FF'><u>void</u></font> <b><a name='operator'></a>operator</b><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font face='Lucida Console'>(</font>
            <font color='#0000FF'>const</font> graph_type<font color='#5555FF'>&amp;</font> sample,
            std::vector<font color='#5555FF'>&lt;</font><font color='#0000FF'><u>bool</u></font><font color='#5555FF'>&gt;</font><font color='#5555FF'>&amp;</font> labels 
        <font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>
        <b>{</b>
            <font color='#009900'>// make sure requires clause is not broken
</font><font color='#0000FF'>#ifdef</font> ENABLE_ASSERTS
            <font color='#BB00BB'>DLIB_ASSERT</font><font face='Lucida Console'>(</font><font color='#BB00BB'>graph_contains_length_one_cycle</font><font face='Lucida Console'>(</font>sample<font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>false</font>,
                        "<font color='#CC0000'>\t void graph_labeler::operator()</font>"
                        <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\t Invalid inputs were given to this function.</font>"
                        <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\t get_edge_weights().size(): </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font color='#BB00BB'>get_edge_weights</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>
                        <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\t get_node_weights().size(): </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font color='#BB00BB'>get_node_weights</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>
                        <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\t graph_contains_length_one_cycle(sample): </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font color='#BB00BB'>graph_contains_length_one_cycle</font><font face='Lucida Console'>(</font>sample<font face='Lucida Console'>)</font>
                        <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\t this:                      </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font color='#0000FF'>this</font>
                    <font face='Lucida Console'>)</font>;
            <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font> i <font color='#5555FF'>=</font> <font color='#979000'>0</font>; i <font color='#5555FF'>&lt;</font> sample.<font color='#BB00BB'>number_of_nodes</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; <font color='#5555FF'>+</font><font color='#5555FF'>+</font>i<font face='Lucida Console'>)</font>
            <b>{</b>
                <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>is_matrix<font color='#5555FF'>&lt;</font>vector_type<font color='#5555FF'>&gt;</font>::value <font color='#5555FF'>&amp;</font><font color='#5555FF'>&amp;</font>
                    is_matrix<font color='#5555FF'>&lt;</font><font color='#0000FF'>typename</font> graph_type::type<font color='#5555FF'>&gt;</font>::value<font face='Lucida Console'>)</font>
                <b>{</b>
                    <font color='#009900'>// check that dot() is legal.
</font>                    <font color='#BB00BB'>DLIB_ASSERT</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font><font face='Lucida Console'>)</font><font color='#BB00BB'>get_node_weights</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font><font face='Lucida Console'>)</font>sample.<font color='#BB00BB'>node</font><font face='Lucida Console'>(</font>i<font face='Lucida Console'>)</font>.data.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>,
                                "<font color='#CC0000'>\t void graph_labeler::operator()</font>"
                                <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\t The size of the node weight vector must match the one in the node.</font>"
                                <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\t get_node_weights().size():  </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font color='#BB00BB'>get_node_weights</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>
                                <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\t sample.node(i).data.size(): </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> sample.<font color='#BB00BB'>node</font><font face='Lucida Console'>(</font>i<font face='Lucida Console'>)</font>.data.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>
                                <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\t i: </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> i 
                                <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\t this:              </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font color='#0000FF'>this</font>
                            <font face='Lucida Console'>)</font>;
                <b>}</b>

                <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font> n <font color='#5555FF'>=</font> <font color='#979000'>0</font>; n <font color='#5555FF'>&lt;</font> sample.<font color='#BB00BB'>node</font><font face='Lucida Console'>(</font>i<font face='Lucida Console'>)</font>.<font color='#BB00BB'>number_of_neighbors</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; <font color='#5555FF'>+</font><font color='#5555FF'>+</font>n<font face='Lucida Console'>)</font>
                <b>{</b>
                    <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>is_matrix<font color='#5555FF'>&lt;</font>vector_type<font color='#5555FF'>&gt;</font>::value <font color='#5555FF'>&amp;</font><font color='#5555FF'>&amp;</font>
                        is_matrix<font color='#5555FF'>&lt;</font><font color='#0000FF'>typename</font> graph_type::edge_type<font color='#5555FF'>&gt;</font>::value<font face='Lucida Console'>)</font>
                    <b>{</b>
                        <font color='#009900'>// check that dot() is legal.
</font>                        <font color='#BB00BB'>DLIB_ASSERT</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font><font face='Lucida Console'>)</font><font color='#BB00BB'>get_edge_weights</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font><font face='Lucida Console'>)</font>sample.<font color='#BB00BB'>node</font><font face='Lucida Console'>(</font>i<font face='Lucida Console'>)</font>.<font color='#BB00BB'>edge</font><font face='Lucida Console'>(</font>n<font face='Lucida Console'>)</font>.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>,
                                    "<font color='#CC0000'>\t void graph_labeler::operator()</font>"
                                    <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\t The size of the edge weight vector must match the one in graph's edge.</font>"
                                    <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\t get_edge_weights().size():  </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font color='#BB00BB'>get_edge_weights</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>
                                    <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\t sample.node(i).edge(n).size(): </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> sample.<font color='#BB00BB'>node</font><font face='Lucida Console'>(</font>i<font face='Lucida Console'>)</font>.<font color='#BB00BB'>edge</font><font face='Lucida Console'>(</font>n<font face='Lucida Console'>)</font>.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>
                                    <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\t i: </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> i 
                                    <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\t this:              </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font color='#0000FF'>this</font>
                        <font face='Lucida Console'>)</font>;
                    <b>}</b>

                    <font color='#BB00BB'>DLIB_ASSERT</font><font face='Lucida Console'>(</font>sample.<font color='#BB00BB'>node</font><font face='Lucida Console'>(</font>i<font face='Lucida Console'>)</font>.<font color='#BB00BB'>edge</font><font face='Lucida Console'>(</font>n<font face='Lucida Console'>)</font>.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>|</font><font color='#5555FF'>|</font> <font color='#BB00BB'>min</font><font face='Lucida Console'>(</font>sample.<font color='#BB00BB'>node</font><font face='Lucida Console'>(</font>i<font face='Lucida Console'>)</font>.<font color='#BB00BB'>edge</font><font face='Lucida Console'>(</font>n<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&gt;</font><font color='#5555FF'>=</font> <font color='#979000'>0</font>,
                                "<font color='#CC0000'>\t void graph_labeler::operator()</font>"
                                <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\t No edge vectors are allowed to have negative elements.</font>"
                                <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\t min(sample.node(i).edge(n)): </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font color='#BB00BB'>min</font><font face='Lucida Console'>(</font>sample.<font color='#BB00BB'>node</font><font face='Lucida Console'>(</font>i<font face='Lucida Console'>)</font>.<font color='#BB00BB'>edge</font><font face='Lucida Console'>(</font>n<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>
                                <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\t i:    </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> i 
                                <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\t n:    </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> n 
                                <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\t this: </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font color='#0000FF'>this</font>
                    <font face='Lucida Console'>)</font>;
                <b>}</b>
            <b>}</b>
<font color='#0000FF'>#endif</font>


            graph<font color='#5555FF'>&lt;</font><font color='#0000FF'><u>double</u></font>,<font color='#0000FF'><u>double</u></font><font color='#5555FF'>&gt;</font>::kernel_1a g; 
            <font color='#BB00BB'>copy_graph_structure</font><font face='Lucida Console'>(</font>sample, g<font face='Lucida Console'>)</font>;
            <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font> i <font color='#5555FF'>=</font> <font color='#979000'>0</font>; i <font color='#5555FF'>&lt;</font> g.<font color='#BB00BB'>number_of_nodes</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; <font color='#5555FF'>+</font><font color='#5555FF'>+</font>i<font face='Lucida Console'>)</font>
            <b>{</b>
                g.<font color='#BB00BB'>node</font><font face='Lucida Console'>(</font>i<font face='Lucida Console'>)</font>.data <font color='#5555FF'>=</font> <font color='#BB00BB'>dot</font><font face='Lucida Console'>(</font>node_weights, sample.<font color='#BB00BB'>node</font><font face='Lucida Console'>(</font>i<font face='Lucida Console'>)</font>.data<font face='Lucida Console'>)</font>;

                <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font> n <font color='#5555FF'>=</font> <font color='#979000'>0</font>; n <font color='#5555FF'>&lt;</font> g.<font color='#BB00BB'>node</font><font face='Lucida Console'>(</font>i<font face='Lucida Console'>)</font>.<font color='#BB00BB'>number_of_neighbors</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; <font color='#5555FF'>+</font><font color='#5555FF'>+</font>n<font face='Lucida Console'>)</font>
                <b>{</b>
                    <font color='#0000FF'>const</font> <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font> j <font color='#5555FF'>=</font> g.<font color='#BB00BB'>node</font><font face='Lucida Console'>(</font>i<font face='Lucida Console'>)</font>.<font color='#BB00BB'>neighbor</font><font face='Lucida Console'>(</font>n<font face='Lucida Console'>)</font>.<font color='#BB00BB'>index</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
                    <font color='#009900'>// Don't compute an edge weight more than once. 
</font>                    <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>i <font color='#5555FF'>&lt;</font> j<font face='Lucida Console'>)</font>
                    <b>{</b>
                        g.<font color='#BB00BB'>node</font><font face='Lucida Console'>(</font>i<font face='Lucida Console'>)</font>.<font color='#BB00BB'>edge</font><font face='Lucida Console'>(</font>n<font face='Lucida Console'>)</font> <font color='#5555FF'>=</font> <font color='#BB00BB'>dot</font><font face='Lucida Console'>(</font>edge_weights, sample.<font color='#BB00BB'>node</font><font face='Lucida Console'>(</font>i<font face='Lucida Console'>)</font>.<font color='#BB00BB'>edge</font><font face='Lucida Console'>(</font>n<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
                    <b>}</b>
                <b>}</b>

            <b>}</b>

            labels.<font color='#BB00BB'>clear</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
            std::vector<font color='#5555FF'>&lt;</font>node_label<font color='#5555FF'>&gt;</font> temp;
            <font color='#BB00BB'>find_max_factor_graph_potts</font><font face='Lucida Console'>(</font>g, temp<font face='Lucida Console'>)</font>;
            <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font> i <font color='#5555FF'>=</font> <font color='#979000'>0</font>; i <font color='#5555FF'>&lt;</font> temp.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; <font color='#5555FF'>+</font><font color='#5555FF'>+</font>i<font face='Lucida Console'>)</font>
            <b>{</b>
                <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>temp[i] <font color='#5555FF'>!</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font>
                    labels.<font color='#BB00BB'>push_back</font><font face='Lucida Console'>(</font><font color='#979000'>true</font><font face='Lucida Console'>)</font>;
                <font color='#0000FF'>else</font>
                    labels.<font color='#BB00BB'>push_back</font><font face='Lucida Console'>(</font><font color='#979000'>false</font><font face='Lucida Console'>)</font>;
            <b>}</b>
        <b>}</b>

        <font color='#0000FF'>template</font> <font color='#5555FF'>&lt;</font><font color='#0000FF'>typename</font> graph_type<font color='#5555FF'>&gt;</font>
        std::vector<font color='#5555FF'>&lt;</font><font color='#0000FF'><u>bool</u></font><font color='#5555FF'>&gt;</font> <b><a name='operator'></a>operator</b><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font face='Lucida Console'>(</font>
            <font color='#0000FF'>const</font> graph_type<font color='#5555FF'>&amp;</font> sample 
        <font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>
        <b>{</b>
            std::vector<font color='#5555FF'>&lt;</font><font color='#0000FF'><u>bool</u></font><font color='#5555FF'>&gt;</font> temp;
            <font face='Lucida Console'>(</font><font color='#5555FF'>*</font><font color='#0000FF'>this</font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font>sample, temp<font face='Lucida Console'>)</font>;
            <font color='#0000FF'>return</font> temp;
        <b>}</b>

    <font color='#0000FF'>private</font>:

        vector_type edge_weights;
        vector_type node_weights;
    <b>}</b>;


<font color='#009900'>// ----------------------------------------------------------------------------------------
</font>
    <font color='#0000FF'>template</font> <font color='#5555FF'>&lt;</font>
        <font color='#0000FF'>typename</font> vector_type 
        <font color='#5555FF'>&gt;</font>
    <font color='#0000FF'><u>void</u></font> <b><a name='serialize'></a>serialize</b> <font face='Lucida Console'>(</font>
        <font color='#0000FF'>const</font> graph_labeler<font color='#5555FF'>&lt;</font>vector_type<font color='#5555FF'>&gt;</font><font color='#5555FF'>&amp;</font> item,
        std::ostream<font color='#5555FF'>&amp;</font> out
    <font face='Lucida Console'>)</font>
    <b>{</b>
        <font color='#0000FF'><u>int</u></font> version <font color='#5555FF'>=</font> <font color='#979000'>1</font>;
        <font color='#BB00BB'>serialize</font><font face='Lucida Console'>(</font>version, out<font face='Lucida Console'>)</font>;
        <font color='#BB00BB'>serialize</font><font face='Lucida Console'>(</font>item.<font color='#BB00BB'>get_edge_weights</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>, out<font face='Lucida Console'>)</font>;
        <font color='#BB00BB'>serialize</font><font face='Lucida Console'>(</font>item.<font color='#BB00BB'>get_node_weights</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>, out<font face='Lucida Console'>)</font>;
    <b>}</b>

<font color='#009900'>// ----------------------------------------------------------------------------------------
</font>
    <font color='#0000FF'>template</font> <font color='#5555FF'>&lt;</font>
        <font color='#0000FF'>typename</font> vector_type 
        <font color='#5555FF'>&gt;</font>
    <font color='#0000FF'><u>void</u></font> <b><a name='deserialize'></a>deserialize</b> <font face='Lucida Console'>(</font>
        graph_labeler<font color='#5555FF'>&lt;</font>vector_type<font color='#5555FF'>&gt;</font><font color='#5555FF'>&amp;</font> item,
        std::istream<font color='#5555FF'>&amp;</font> in 
    <font face='Lucida Console'>)</font>
    <b>{</b>
        <font color='#0000FF'><u>int</u></font> version <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
        <font color='#BB00BB'>deserialize</font><font face='Lucida Console'>(</font>version, in<font face='Lucida Console'>)</font>;
        <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>version <font color='#5555FF'>!</font><font color='#5555FF'>=</font> <font color='#979000'>1</font><font face='Lucida Console'>)</font>
        <b>{</b>
            <font color='#0000FF'>throw</font> dlib::<font color='#BB00BB'>serialization_error</font><font face='Lucida Console'>(</font>"<font color='#CC0000'>While deserializing graph_labeler, found unexpected version number of </font>" <font color='#5555FF'>+</font> 
                                            <font color='#BB00BB'>cast_to_string</font><font face='Lucida Console'>(</font>version<font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> "<font color='#CC0000'>.</font>"<font face='Lucida Console'>)</font>;
        <b>}</b>

        vector_type edge_weights, node_weights;
        <font color='#BB00BB'>deserialize</font><font face='Lucida Console'>(</font>edge_weights, in<font face='Lucida Console'>)</font>;
        <font color='#BB00BB'>deserialize</font><font face='Lucida Console'>(</font>node_weights, in<font face='Lucida Console'>)</font>;

        item <font color='#5555FF'>=</font> graph_labeler<font color='#5555FF'>&lt;</font>vector_type<font color='#5555FF'>&gt;</font><font face='Lucida Console'>(</font>edge_weights, node_weights<font face='Lucida Console'>)</font>;
    <b>}</b>

<font color='#009900'>// ----------------------------------------------------------------------------------------
</font>
<b>}</b>

<font color='#0000FF'>#endif</font> <font color='#009900'>// DLIB_GRAPH_LaBELER_Hh_
</font>


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