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<html><head><title>dlib C++ Library - hashed_feature_image.h</title></head><body bgcolor='white'><pre> |
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<font color='#009900'>// Copyright (C) 2011 Davis E. King ([email protected]) |
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</font><font color='#009900'>// License: Boost Software License See LICENSE.txt for the full license. |
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</font><font color='#0000FF'>#ifndef</font> DLIB_HASHED_IMAGE_FEATUrES_Hh_ |
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<font color='#0000FF'>#define</font> DLIB_HASHED_IMAGE_FEATUrES_Hh_ |
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<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='../lsh/projection_hash.h.html'>../lsh/projection_hash.h</a>" |
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<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='hashed_feature_image_abstract.h.html'>hashed_feature_image_abstract.h</a>" |
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<font color='#0000FF'>#include</font> <font color='#5555FF'><</font>vector<font color='#5555FF'>></font> |
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<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='../algs.h.html'>../algs.h</a>" |
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<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='../matrix.h.html'>../matrix.h</a>" |
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<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='../statistics.h.html'>../statistics.h</a>" |
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<font color='#0000FF'>namespace</font> dlib |
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<b>{</b> |
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<font color='#009900'>// ---------------------------------------------------------------------------------------- |
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</font> |
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<font color='#0000FF'>template</font> <font color='#5555FF'><</font> |
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<font color='#0000FF'>typename</font> feature_extractor, |
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<font color='#0000FF'>typename</font> hash_function_type_ <font color='#5555FF'>=</font> projection_hash |
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<font color='#5555FF'>></font> |
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<font color='#0000FF'>class</font> <b><a name='hashed_feature_image'></a>hashed_feature_image</b> : noncopyable |
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<b>{</b> |
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<font color='#0000FF'>public</font>: |
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<font color='#0000FF'>typedef</font> feature_extractor feature_extractor_type; |
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<font color='#0000FF'>typedef</font> hash_function_type_ hash_function_type; |
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<font color='#0000FF'>typedef</font> std::vector<font color='#5555FF'><</font>std::pair<font color='#5555FF'><</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>int</u></font>,<font color='#0000FF'><u>double</u></font><font color='#5555FF'>></font> <font color='#5555FF'>></font> descriptor_type; |
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<b><a name='hashed_feature_image'></a>hashed_feature_image</b> <font face='Lucida Console'>(</font> |
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<font face='Lucida Console'>)</font>; |
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<font color='#0000FF'><u>void</u></font> <b><a name='clear'></a>clear</b> <font face='Lucida Console'>(</font> |
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<font face='Lucida Console'>)</font>; |
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<font color='#0000FF'><u>void</u></font> <b><a name='set_hash'></a>set_hash</b> <font face='Lucida Console'>(</font> |
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<font color='#0000FF'>const</font> hash_function_type<font color='#5555FF'>&</font> hash_ |
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<font face='Lucida Console'>)</font>; |
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<font color='#0000FF'>const</font> hash_function_type<font color='#5555FF'>&</font> <b><a name='get_hash'></a>get_hash</b> <font face='Lucida Console'>(</font> |
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<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>; |
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<font color='#0000FF'><u>void</u></font> <b><a name='copy_configuration'></a>copy_configuration</b> <font face='Lucida Console'>(</font> |
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<font color='#0000FF'>const</font> feature_extractor<font color='#5555FF'>&</font> item |
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<font face='Lucida Console'>)</font>; |
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<font color='#0000FF'><u>void</u></font> <b><a name='copy_configuration'></a>copy_configuration</b> <font face='Lucida Console'>(</font> |
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<font color='#0000FF'>const</font> hashed_feature_image<font color='#5555FF'>&</font> item |
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<font face='Lucida Console'>)</font>; |
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<font color='#0000FF'>template</font> <font color='#5555FF'><</font> |
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<font color='#0000FF'>typename</font> image_type |
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<font color='#5555FF'>></font> |
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<font color='#0000FF'>inline</font> <font color='#0000FF'><u>void</u></font> <b><a name='load'></a>load</b> <font face='Lucida Console'>(</font> |
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<font color='#0000FF'>const</font> image_type<font color='#5555FF'>&</font> img |
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<font face='Lucida Console'>)</font>; |
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<font color='#0000FF'>inline</font> <font color='#0000FF'><u>size_t</u></font> <b><a name='size'></a>size</b> <font face='Lucida Console'>(</font> |
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<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>; |
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<font color='#0000FF'>inline</font> <font color='#0000FF'><u>long</u></font> <b><a name='nr'></a>nr</b> <font face='Lucida Console'>(</font> |
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<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>; |
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<font color='#0000FF'>inline</font> <font color='#0000FF'><u>long</u></font> <b><a name='nc'></a>nc</b> <font face='Lucida Console'>(</font> |
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<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>; |
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<font color='#0000FF'>inline</font> <font color='#0000FF'><u>long</u></font> <b><a name='get_num_dimensions'></a>get_num_dimensions</b> <font face='Lucida Console'>(</font> |
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<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>; |
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<font color='#0000FF'><u>void</u></font> <b><a name='use_relative_feature_weights'></a>use_relative_feature_weights</b> <font face='Lucida Console'>(</font> |
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<font face='Lucida Console'>)</font>; |
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<font color='#0000FF'><u>void</u></font> <b><a name='use_uniform_feature_weights'></a>use_uniform_feature_weights</b> <font face='Lucida Console'>(</font> |
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<font face='Lucida Console'>)</font>; |
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<font color='#0000FF'><u>bool</u></font> <b><a name='uses_uniform_feature_weights'></a>uses_uniform_feature_weights</b> <font face='Lucida Console'>(</font> |
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<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>; |
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<font color='#0000FF'>inline</font> <font color='#0000FF'>const</font> descriptor_type<font color='#5555FF'>&</font> <b><a name='operator'></a>operator</b><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font face='Lucida Console'>(</font> |
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<font color='#0000FF'><u>long</u></font> row, |
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<font color='#0000FF'><u>long</u></font> col |
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<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>; |
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<font color='#0000FF'>inline</font> <font color='#0000FF'>const</font> rectangle <b><a name='get_block_rect'></a>get_block_rect</b> <font face='Lucida Console'>(</font> |
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<font color='#0000FF'><u>long</u></font> row, |
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<font color='#0000FF'><u>long</u></font> col |
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<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>; |
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<font color='#0000FF'>inline</font> <font color='#0000FF'>const</font> point <b><a name='image_to_feat_space'></a>image_to_feat_space</b> <font face='Lucida Console'>(</font> |
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<font color='#0000FF'>const</font> point<font color='#5555FF'>&</font> p |
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<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>; |
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<font color='#0000FF'>inline</font> <font color='#0000FF'>const</font> rectangle <b><a name='image_to_feat_space'></a>image_to_feat_space</b> <font face='Lucida Console'>(</font> |
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<font color='#0000FF'>const</font> rectangle<font color='#5555FF'>&</font> rect |
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<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>; |
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<font color='#0000FF'>inline</font> <font color='#0000FF'>const</font> point <b><a name='feat_to_image_space'></a>feat_to_image_space</b> <font face='Lucida Console'>(</font> |
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<font color='#0000FF'>const</font> point<font color='#5555FF'>&</font> p |
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<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>; |
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<font color='#0000FF'>inline</font> <font color='#0000FF'>const</font> rectangle <b><a name='feat_to_image_space'></a>feat_to_image_space</b> <font face='Lucida Console'>(</font> |
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<font color='#0000FF'>const</font> rectangle<font color='#5555FF'>&</font> rect |
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<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>; |
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<font color='#0000FF'>template</font> <font color='#5555FF'><</font><font color='#0000FF'>typename</font> T<font color='#5555FF'>></font> |
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<font color='#0000FF'>friend</font> <font color='#0000FF'><u>void</u></font> <b><a name='serialize'></a>serialize</b> <font face='Lucida Console'>(</font> |
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<font color='#0000FF'>const</font> hashed_feature_image<font color='#5555FF'><</font>T<font color='#5555FF'>></font><font color='#5555FF'>&</font> item, |
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std::ostream<font color='#5555FF'>&</font> out |
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<font face='Lucida Console'>)</font>; |
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<font color='#0000FF'>template</font> <font color='#5555FF'><</font><font color='#0000FF'>typename</font> T<font color='#5555FF'>></font> |
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<font color='#0000FF'>friend</font> <font color='#0000FF'><u>void</u></font> <b><a name='deserialize'></a>deserialize</b> <font face='Lucida Console'>(</font> |
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hashed_feature_image<font color='#5555FF'><</font>T<font color='#5555FF'>></font><font color='#5555FF'>&</font> item, |
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std::istream<font color='#5555FF'>&</font> in |
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<font face='Lucida Console'>)</font>; |
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<font color='#0000FF'>private</font>: |
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array2d<font color='#5555FF'><</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font><font color='#5555FF'>></font> feats; |
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feature_extractor fe; |
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hash_function_type phash; |
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std::vector<font color='#5555FF'><</font><font color='#0000FF'><u>float</u></font><font color='#5555FF'>></font> feat_counts; |
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<font color='#0000FF'><u>bool</u></font> uniform_feature_weights; |
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<font color='#009900'>// This is a transient variable. It is just here so it doesn't have to be |
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</font> <font color='#009900'>// reallocated over and over inside operator() |
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</font> <font color='#0000FF'>mutable</font> descriptor_type hash_feats; |
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<b>}</b>; |
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<font color='#009900'>// ---------------------------------------------------------------------------------------- |
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</font> |
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<font color='#0000FF'>template</font> <font color='#5555FF'><</font><font color='#0000FF'>typename</font> T<font color='#5555FF'>></font> |
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<font color='#0000FF'><u>void</u></font> <b><a name='serialize'></a>serialize</b> <font face='Lucida Console'>(</font> |
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<font color='#0000FF'>const</font> hashed_feature_image<font color='#5555FF'><</font>T<font color='#5555FF'>></font><font color='#5555FF'>&</font> item, |
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std::ostream<font color='#5555FF'>&</font> out |
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<font face='Lucida Console'>)</font> |
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<b>{</b> |
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<font color='#0000FF'><u>int</u></font> version <font color='#5555FF'>=</font> <font color='#979000'>1</font>; |
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<font color='#BB00BB'>serialize</font><font face='Lucida Console'>(</font>version, out<font face='Lucida Console'>)</font>; |
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<font color='#BB00BB'>serialize</font><font face='Lucida Console'>(</font>item.feats, out<font face='Lucida Console'>)</font>; |
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<font color='#BB00BB'>serialize</font><font face='Lucida Console'>(</font>item.fe, out<font face='Lucida Console'>)</font>; |
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<font color='#BB00BB'>serialize</font><font face='Lucida Console'>(</font>item.phash, out<font face='Lucida Console'>)</font>; |
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<font color='#BB00BB'>serialize</font><font face='Lucida Console'>(</font>item.feat_counts, out<font face='Lucida Console'>)</font>; |
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<font color='#BB00BB'>serialize</font><font face='Lucida Console'>(</font>item.uniform_feature_weights, out<font face='Lucida Console'>)</font>; |
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<b>}</b> |
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<font color='#0000FF'>template</font> <font color='#5555FF'><</font><font color='#0000FF'>typename</font> T<font color='#5555FF'>></font> |
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<font color='#0000FF'><u>void</u></font> <b><a name='deserialize'></a>deserialize</b> <font face='Lucida Console'>(</font> |
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hashed_feature_image<font color='#5555FF'><</font>T<font color='#5555FF'>></font><font color='#5555FF'>&</font> item, |
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std::istream<font color='#5555FF'>&</font> in |
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<font face='Lucida Console'>)</font> |
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<b>{</b> |
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<font color='#0000FF'><u>int</u></font> version <font color='#5555FF'>=</font> <font color='#979000'>0</font>; |
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<font color='#BB00BB'>deserialize</font><font face='Lucida Console'>(</font>version, in<font face='Lucida Console'>)</font>; |
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<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> |
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<font color='#0000FF'>throw</font> <font color='#BB00BB'>serialization_error</font><font face='Lucida Console'>(</font>"<font color='#CC0000'>Unexpected version found while deserializing a dlib::hashed_feature_image object.</font>"<font face='Lucida Console'>)</font>; |
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<font color='#BB00BB'>deserialize</font><font face='Lucida Console'>(</font>item.feats, in<font face='Lucida Console'>)</font>; |
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<font color='#BB00BB'>deserialize</font><font face='Lucida Console'>(</font>item.fe, in<font face='Lucida Console'>)</font>; |
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<font color='#BB00BB'>deserialize</font><font face='Lucida Console'>(</font>item.phash, in<font face='Lucida Console'>)</font>; |
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<font color='#BB00BB'>deserialize</font><font face='Lucida Console'>(</font>item.feat_counts, in<font face='Lucida Console'>)</font>; |
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<font color='#BB00BB'>deserialize</font><font face='Lucida Console'>(</font>item.uniform_feature_weights, in<font face='Lucida Console'>)</font>; |
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<b>}</b> |
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<font color='#009900'>// ---------------------------------------------------------------------------------------- |
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</font><font color='#009900'>// ---------------------------------------------------------------------------------------- |
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</font><font color='#009900'>// hashed_feature_image member functions |
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</font><font color='#009900'>// ---------------------------------------------------------------------------------------- |
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</font><font color='#009900'>// ---------------------------------------------------------------------------------------- |
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</font> |
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<font color='#0000FF'>template</font> <font color='#5555FF'><</font> |
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<font color='#0000FF'>typename</font> feature_extractor, |
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<font color='#0000FF'>typename</font> hash_function_type |
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<font color='#5555FF'>></font> |
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hashed_feature_image<font color='#5555FF'><</font>feature_extractor,hash_function_type<font color='#5555FF'>></font>:: |
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<b><a name='hashed_feature_image'></a>hashed_feature_image</b> <font face='Lucida Console'>(</font> |
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<font face='Lucida Console'>)</font> |
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<b>{</b> |
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<font color='#BB00BB'>clear</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; |
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hash_feats.<font color='#BB00BB'>resize</font><font face='Lucida Console'>(</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>; |
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<b>}</b> |
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<font color='#009900'>// ---------------------------------------------------------------------------------------- |
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</font> |
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<font color='#0000FF'>template</font> <font color='#5555FF'><</font> |
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<font color='#0000FF'>typename</font> feature_extractor, |
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<font color='#0000FF'>typename</font> hash_function_type |
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<font color='#5555FF'>></font> |
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<font color='#0000FF'><u>void</u></font> hashed_feature_image<font color='#5555FF'><</font>feature_extractor,hash_function_type<font color='#5555FF'>></font>:: |
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<b><a name='clear'></a>clear</b> <font face='Lucida Console'>(</font> |
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<font face='Lucida Console'>)</font> |
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<b>{</b> |
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fe.<font color='#BB00BB'>clear</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; |
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phash <font color='#5555FF'>=</font> <font color='#BB00BB'>hash_function_type</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; |
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feats.<font color='#BB00BB'>clear</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; |
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feat_counts.<font color='#BB00BB'>clear</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; |
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uniform_feature_weights <font color='#5555FF'>=</font> <font color='#979000'>false</font>; |
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<b>}</b> |
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<font color='#009900'>// ---------------------------------------------------------------------------------------- |
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</font> |
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<font color='#0000FF'>template</font> <font color='#5555FF'><</font> |
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<font color='#0000FF'>typename</font> feature_extractor, |
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<font color='#0000FF'>typename</font> hash_function_type |
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<font color='#5555FF'>></font> |
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<font color='#0000FF'><u>void</u></font> hashed_feature_image<font color='#5555FF'><</font>feature_extractor,hash_function_type<font color='#5555FF'>></font>:: |
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<b><a name='set_hash'></a>set_hash</b> <font face='Lucida Console'>(</font> |
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<font color='#0000FF'>const</font> hash_function_type<font color='#5555FF'>&</font> hash_ |
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<font face='Lucida Console'>)</font> |
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<b>{</b> |
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phash <font color='#5555FF'>=</font> hash_; |
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<b>}</b> |
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<font color='#009900'>// ---------------------------------------------------------------------------------------- |
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</font> |
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<font color='#0000FF'>template</font> <font color='#5555FF'><</font> |
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<font color='#0000FF'>typename</font> feature_extractor, |
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<font color='#0000FF'>typename</font> hash_function_type |
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<font color='#5555FF'>></font> |
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<font color='#0000FF'>const</font> hash_function_type<font color='#5555FF'>&</font> hashed_feature_image<font color='#5555FF'><</font>feature_extractor,hash_function_type<font color='#5555FF'>></font>:: |
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<b><a name='get_hash'></a>get_hash</b> <font face='Lucida Console'>(</font> |
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<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> |
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<b>{</b> |
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<font color='#0000FF'>return</font> phash; |
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<b>}</b> |
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<font color='#009900'>// ---------------------------------------------------------------------------------------- |
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</font> |
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<font color='#0000FF'>template</font> <font color='#5555FF'><</font> |
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<font color='#0000FF'>typename</font> feature_extractor, |
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<font color='#0000FF'>typename</font> hash_function_type |
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<font color='#5555FF'>></font> |
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<font color='#0000FF'><u>void</u></font> hashed_feature_image<font color='#5555FF'><</font>feature_extractor,hash_function_type<font color='#5555FF'>></font>:: |
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<b><a name='copy_configuration'></a>copy_configuration</b> <font face='Lucida Console'>(</font> |
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<font color='#0000FF'>const</font> feature_extractor<font color='#5555FF'>&</font> item |
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<font face='Lucida Console'>)</font> |
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<b>{</b> |
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fe.<font color='#BB00BB'>copy_configuration</font><font face='Lucida Console'>(</font>item<font face='Lucida Console'>)</font>; |
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<b>}</b> |
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<font color='#009900'>// ---------------------------------------------------------------------------------------- |
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</font> |
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<font color='#0000FF'>template</font> <font color='#5555FF'><</font> |
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<font color='#0000FF'>typename</font> feature_extractor, |
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<font color='#0000FF'>typename</font> hash_function_type |
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<font color='#5555FF'>></font> |
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<font color='#0000FF'><u>void</u></font> hashed_feature_image<font color='#5555FF'><</font>feature_extractor,hash_function_type<font color='#5555FF'>></font>:: |
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<b><a name='copy_configuration'></a>copy_configuration</b> <font face='Lucida Console'>(</font> |
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<font color='#0000FF'>const</font> hashed_feature_image<font color='#5555FF'>&</font> item |
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<font face='Lucida Console'>)</font> |
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<b>{</b> |
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fe.<font color='#BB00BB'>copy_configuration</font><font face='Lucida Console'>(</font>item.fe<font face='Lucida Console'>)</font>; |
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phash <font color='#5555FF'>=</font> item.phash; |
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uniform_feature_weights <font color='#5555FF'>=</font> item.uniform_feature_weights; |
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<b>}</b> |
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<font color='#009900'>// ---------------------------------------------------------------------------------------- |
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</font> |
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<font color='#0000FF'>template</font> <font color='#5555FF'><</font> |
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<font color='#0000FF'>typename</font> feature_extractor, |
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<font color='#0000FF'>typename</font> hash_function_type |
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<font color='#5555FF'>></font> |
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<font color='#0000FF'>template</font> <font color='#5555FF'><</font> |
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<font color='#0000FF'>typename</font> image_type |
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<font color='#5555FF'>></font> |
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<font color='#0000FF'><u>void</u></font> hashed_feature_image<font color='#5555FF'><</font>feature_extractor,hash_function_type<font color='#5555FF'>></font>:: |
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<b><a name='load'></a>load</b> <font face='Lucida Console'>(</font> |
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<font color='#0000FF'>const</font> image_type<font color='#5555FF'>&</font> img |
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<font face='Lucida Console'>)</font> |
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<b>{</b> |
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fe.<font color='#BB00BB'>load</font><font face='Lucida Console'>(</font>img<font face='Lucida Console'>)</font>; |
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<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>fe.<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 face='Lucida Console'>)</font> |
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<b>{</b> |
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feats.<font color='#BB00BB'>set_size</font><font face='Lucida Console'>(</font>fe.<font color='#BB00BB'>nr</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>, fe.<font color='#BB00BB'>nc</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; |
|
feat_counts.<font color='#BB00BB'>assign</font><font face='Lucida Console'>(</font>phash.<font color='#BB00BB'>num_hash_bins</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>,<font color='#979000'>1</font><font face='Lucida Console'>)</font>; |
|
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>uniform_feature_weights<font face='Lucida Console'>)</font> |
|
<b>{</b> |
|
<font color='#0000FF'>for</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>long</u></font> r <font color='#5555FF'>=</font> <font color='#979000'>0</font>; r <font color='#5555FF'><</font> feats.<font color='#BB00BB'>nr</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; <font color='#5555FF'>+</font><font color='#5555FF'>+</font>r<font face='Lucida Console'>)</font> |
|
<b>{</b> |
|
<font color='#0000FF'>for</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>long</u></font> c <font color='#5555FF'>=</font> <font color='#979000'>0</font>; c <font color='#5555FF'><</font> feats.<font color='#BB00BB'>nc</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; <font color='#5555FF'>+</font><font color='#5555FF'>+</font>c<font face='Lucida Console'>)</font> |
|
<b>{</b> |
|
feats[r][c] <font color='#5555FF'>=</font> <font color='#BB00BB'>phash</font><font face='Lucida Console'>(</font><font color='#BB00BB'>fe</font><font face='Lucida Console'>(</font>r,c<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; |
|
<b>}</b> |
|
<b>}</b> |
|
<b>}</b> |
|
<font color='#0000FF'>else</font> |
|
<b>{</b> |
|
<font color='#0000FF'>for</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>long</u></font> r <font color='#5555FF'>=</font> <font color='#979000'>0</font>; r <font color='#5555FF'><</font> feats.<font color='#BB00BB'>nr</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; <font color='#5555FF'>+</font><font color='#5555FF'>+</font>r<font face='Lucida Console'>)</font> |
|
<b>{</b> |
|
<font color='#0000FF'>for</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>long</u></font> c <font color='#5555FF'>=</font> <font color='#979000'>0</font>; c <font color='#5555FF'><</font> feats.<font color='#BB00BB'>nc</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; <font color='#5555FF'>+</font><font color='#5555FF'>+</font>c<font face='Lucida Console'>)</font> |
|
<b>{</b> |
|
feats[r][c] <font color='#5555FF'>=</font> <font color='#BB00BB'>phash</font><font face='Lucida Console'>(</font><font color='#BB00BB'>fe</font><font face='Lucida Console'>(</font>r,c<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; |
|
feat_counts[feats[r][c]]<font color='#5555FF'>+</font><font color='#5555FF'>+</font>; |
|
<b>}</b> |
|
<b>}</b> |
|
<b>}</b> |
|
<b>}</b> |
|
<font color='#0000FF'>else</font> |
|
<b>{</b> |
|
feats.<font color='#BB00BB'>set_size</font><font face='Lucida Console'>(</font><font color='#979000'>0</font>,<font color='#979000'>0</font><font face='Lucida Console'>)</font>; |
|
<b>}</b> |
|
|
|
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font color='#5555FF'>!</font>uniform_feature_weights<font face='Lucida Console'>)</font> |
|
<b>{</b> |
|
<font color='#009900'>// use the inverse frequency as the scale for each feature. We also scale |
|
</font> <font color='#009900'>// these counts so that they are invariant to the size of the image (we scale |
|
</font> <font color='#009900'>// them so they all look like they come from a 500x400 images). |
|
</font> <font color='#0000FF'>const</font> <font color='#0000FF'><u>double</u></font> scale <font color='#5555FF'>=</font> <font color='#BB00BB'>image_size</font><font face='Lucida Console'>(</font>img<font face='Lucida Console'>)</font><font color='#5555FF'>/</font><font face='Lucida Console'>(</font><font color='#979000'>500.0</font><font color='#5555FF'>*</font><font color='#979000'>400.0</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'><</font> feat_counts.<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> |
|
feat_counts[i] <font color='#5555FF'>=</font> scale<font color='#5555FF'>/</font>feat_counts[i]; |
|
<b>}</b> |
|
<b>}</b> |
|
|
|
fe.<font color='#BB00BB'>unload</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; |
|
<b>}</b> |
|
|
|
<font color='#009900'>// ---------------------------------------------------------------------------------------- |
|
</font> |
|
<font color='#0000FF'>template</font> <font color='#5555FF'><</font> |
|
<font color='#0000FF'>typename</font> feature_extractor, |
|
<font color='#0000FF'>typename</font> hash_function_type |
|
<font color='#5555FF'>></font> |
|
<font color='#0000FF'><u>size_t</u></font> hashed_feature_image<font color='#5555FF'><</font>feature_extractor,hash_function_type<font color='#5555FF'>></font>:: |
|
<b><a name='size'></a>size</b> <font face='Lucida Console'>(</font> |
|
<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> |
|
<b>{</b> |
|
<font color='#0000FF'>return</font> feats.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; |
|
<b>}</b> |
|
|
|
<font color='#009900'>// ---------------------------------------------------------------------------------------- |
|
</font> |
|
<font color='#0000FF'>template</font> <font color='#5555FF'><</font> |
|
<font color='#0000FF'>typename</font> feature_extractor, |
|
<font color='#0000FF'>typename</font> hash_function_type |
|
<font color='#5555FF'>></font> |
|
<font color='#0000FF'><u>long</u></font> hashed_feature_image<font color='#5555FF'><</font>feature_extractor,hash_function_type<font color='#5555FF'>></font>:: |
|
<b><a name='nr'></a>nr</b> <font face='Lucida Console'>(</font> |
|
<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> |
|
<b>{</b> |
|
<font color='#0000FF'>return</font> feats.<font color='#BB00BB'>nr</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; |
|
<b>}</b> |
|
|
|
<font color='#009900'>// ---------------------------------------------------------------------------------------- |
|
</font> |
|
<font color='#0000FF'>template</font> <font color='#5555FF'><</font> |
|
<font color='#0000FF'>typename</font> feature_extractor, |
|
<font color='#0000FF'>typename</font> hash_function_type |
|
<font color='#5555FF'>></font> |
|
<font color='#0000FF'><u>long</u></font> hashed_feature_image<font color='#5555FF'><</font>feature_extractor,hash_function_type<font color='#5555FF'>></font>:: |
|
<b><a name='nc'></a>nc</b> <font face='Lucida Console'>(</font> |
|
<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> |
|
<b>{</b> |
|
<font color='#0000FF'>return</font> feats.<font color='#BB00BB'>nc</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; |
|
<b>}</b> |
|
|
|
<font color='#009900'>// ---------------------------------------------------------------------------------------- |
|
</font> |
|
<font color='#0000FF'>template</font> <font color='#5555FF'><</font> |
|
<font color='#0000FF'>typename</font> feature_extractor, |
|
<font color='#0000FF'>typename</font> hash_function_type |
|
<font color='#5555FF'>></font> |
|
<font color='#0000FF'><u>long</u></font> hashed_feature_image<font color='#5555FF'><</font>feature_extractor,hash_function_type<font color='#5555FF'>></font>:: |
|
<b><a name='get_num_dimensions'></a>get_num_dimensions</b> <font face='Lucida Console'>(</font> |
|
<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> |
|
<b>{</b> |
|
<font color='#0000FF'>return</font> phash.<font color='#BB00BB'>num_hash_bins</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; |
|
<b>}</b> |
|
|
|
<font color='#009900'>// ---------------------------------------------------------------------------------------- |
|
</font> |
|
<font color='#0000FF'>template</font> <font color='#5555FF'><</font> |
|
<font color='#0000FF'>typename</font> feature_extractor, |
|
<font color='#0000FF'>typename</font> hash_function_type |
|
<font color='#5555FF'>></font> |
|
<font color='#0000FF'><u>void</u></font> hashed_feature_image<font color='#5555FF'><</font>feature_extractor,hash_function_type<font color='#5555FF'>></font>:: |
|
<b><a name='use_relative_feature_weights'></a>use_relative_feature_weights</b> <font face='Lucida Console'>(</font> |
|
<font face='Lucida Console'>)</font> |
|
<b>{</b> |
|
uniform_feature_weights <font color='#5555FF'>=</font> <font color='#979000'>false</font>; |
|
<b>}</b> |
|
|
|
<font color='#009900'>// ---------------------------------------------------------------------------------------- |
|
</font> |
|
<font color='#0000FF'>template</font> <font color='#5555FF'><</font> |
|
<font color='#0000FF'>typename</font> feature_extractor, |
|
<font color='#0000FF'>typename</font> hash_function_type |
|
<font color='#5555FF'>></font> |
|
<font color='#0000FF'><u>void</u></font> hashed_feature_image<font color='#5555FF'><</font>feature_extractor,hash_function_type<font color='#5555FF'>></font>:: |
|
<b><a name='use_uniform_feature_weights'></a>use_uniform_feature_weights</b> <font face='Lucida Console'>(</font> |
|
<font face='Lucida Console'>)</font> |
|
<b>{</b> |
|
uniform_feature_weights <font color='#5555FF'>=</font> <font color='#979000'>true</font>; |
|
<b>}</b> |
|
|
|
<font color='#009900'>// ---------------------------------------------------------------------------------------- |
|
</font> |
|
<font color='#0000FF'>template</font> <font color='#5555FF'><</font> |
|
<font color='#0000FF'>typename</font> feature_extractor, |
|
<font color='#0000FF'>typename</font> hash_function_type |
|
<font color='#5555FF'>></font> |
|
<font color='#0000FF'><u>bool</u></font> hashed_feature_image<font color='#5555FF'><</font>feature_extractor,hash_function_type<font color='#5555FF'>></font>:: |
|
<b><a name='uses_uniform_feature_weights'></a>uses_uniform_feature_weights</b> <font face='Lucida Console'>(</font> |
|
<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> |
|
<b>{</b> |
|
<font color='#0000FF'>return</font> uniform_feature_weights; |
|
<b>}</b> |
|
|
|
<font color='#009900'>// ---------------------------------------------------------------------------------------- |
|
</font> |
|
<font color='#0000FF'>template</font> <font color='#5555FF'><</font> |
|
<font color='#0000FF'>typename</font> feature_extractor, |
|
<font color='#0000FF'>typename</font> hash_function_type |
|
<font color='#5555FF'>></font> |
|
<font color='#0000FF'>const</font> std::vector<font color='#5555FF'><</font>std::pair<font color='#5555FF'><</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>int</u></font>,<font color='#0000FF'><u>double</u></font><font color='#5555FF'>></font> <font color='#5555FF'>></font><font color='#5555FF'>&</font> hashed_feature_image<font color='#5555FF'><</font>feature_extractor,hash_function_type<font color='#5555FF'>></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'><u>long</u></font> row, |
|
<font color='#0000FF'><u>long</u></font> col |
|
<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='#BB00BB'>DLIB_ASSERT</font><font face='Lucida Console'>(</font><font color='#979000'>0</font> <font color='#5555FF'><</font><font color='#5555FF'>=</font> row <font color='#5555FF'>&</font><font color='#5555FF'>&</font> row <font color='#5555FF'><</font> <font color='#BB00BB'>nr</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> col <font color='#5555FF'>&</font><font color='#5555FF'>&</font> col <font color='#5555FF'><</font> <font color='#BB00BB'>nc</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>, |
|
"<font color='#CC0000'>\t descriptor_type hashed_feature_image::operator(row,col)</font>" |
|
<font color='#5555FF'><</font><font color='#5555FF'><</font> "<font color='#CC0000'>\n\t Invalid inputs were given to this function</font>" |
|
<font color='#5555FF'><</font><font color='#5555FF'><</font> "<font color='#CC0000'>\n\t row: </font>" <font color='#5555FF'><</font><font color='#5555FF'><</font> row |
|
<font color='#5555FF'><</font><font color='#5555FF'><</font> "<font color='#CC0000'>\n\t col: </font>" <font color='#5555FF'><</font><font color='#5555FF'><</font> col |
|
<font color='#5555FF'><</font><font color='#5555FF'><</font> "<font color='#CC0000'>\n\t nr(): </font>" <font color='#5555FF'><</font><font color='#5555FF'><</font> <font color='#BB00BB'>nr</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> |
|
<font color='#5555FF'><</font><font color='#5555FF'><</font> "<font color='#CC0000'>\n\t nc(): </font>" <font color='#5555FF'><</font><font color='#5555FF'><</font> <font color='#BB00BB'>nc</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> |
|
<font color='#5555FF'><</font><font color='#5555FF'><</font> "<font color='#CC0000'>\n\t this: </font>" <font color='#5555FF'><</font><font color='#5555FF'><</font> <font color='#0000FF'>this</font> |
|
<font face='Lucida Console'>)</font>; |
|
|
|
hash_feats[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> std::<font color='#BB00BB'>make_pair</font><font face='Lucida Console'>(</font>feats[row][col],feat_counts[feats[row][col]]<font face='Lucida Console'>)</font>; |
|
<font color='#0000FF'>return</font> hash_feats; |
|
<b>}</b> |
|
|
|
<font color='#009900'>// ---------------------------------------------------------------------------------------- |
|
</font> |
|
<font color='#0000FF'>template</font> <font color='#5555FF'><</font> |
|
<font color='#0000FF'>typename</font> feature_extractor, |
|
<font color='#0000FF'>typename</font> hash_function_type |
|
<font color='#5555FF'>></font> |
|
<font color='#0000FF'>const</font> rectangle hashed_feature_image<font color='#5555FF'><</font>feature_extractor,hash_function_type<font color='#5555FF'>></font>:: |
|
<b><a name='get_block_rect'></a>get_block_rect</b> <font face='Lucida Console'>(</font> |
|
<font color='#0000FF'><u>long</u></font> row, |
|
<font color='#0000FF'><u>long</u></font> col |
|
<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> |
|
<b>{</b> |
|
<font color='#0000FF'>return</font> fe.<font color='#BB00BB'>get_block_rect</font><font face='Lucida Console'>(</font>row,col<font face='Lucida Console'>)</font>; |
|
<b>}</b> |
|
|
|
<font color='#009900'>// ---------------------------------------------------------------------------------------- |
|
</font> |
|
<font color='#0000FF'>template</font> <font color='#5555FF'><</font> |
|
<font color='#0000FF'>typename</font> feature_extractor, |
|
<font color='#0000FF'>typename</font> hash_function_type |
|
<font color='#5555FF'>></font> |
|
<font color='#0000FF'>const</font> point hashed_feature_image<font color='#5555FF'><</font>feature_extractor,hash_function_type<font color='#5555FF'>></font>:: |
|
<b><a name='image_to_feat_space'></a>image_to_feat_space</b> <font face='Lucida Console'>(</font> |
|
<font color='#0000FF'>const</font> point<font color='#5555FF'>&</font> p |
|
<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> |
|
<b>{</b> |
|
<font color='#0000FF'>return</font> fe.<font color='#BB00BB'>image_to_feat_space</font><font face='Lucida Console'>(</font>p<font face='Lucida Console'>)</font>; |
|
<b>}</b> |
|
|
|
<font color='#009900'>// ---------------------------------------------------------------------------------------- |
|
</font> |
|
<font color='#0000FF'>template</font> <font color='#5555FF'><</font> |
|
<font color='#0000FF'>typename</font> feature_extractor, |
|
<font color='#0000FF'>typename</font> hash_function_type |
|
<font color='#5555FF'>></font> |
|
<font color='#0000FF'>const</font> rectangle hashed_feature_image<font color='#5555FF'><</font>feature_extractor,hash_function_type<font color='#5555FF'>></font>:: |
|
<b><a name='image_to_feat_space'></a>image_to_feat_space</b> <font face='Lucida Console'>(</font> |
|
<font color='#0000FF'>const</font> rectangle<font color='#5555FF'>&</font> rect |
|
<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> |
|
<b>{</b> |
|
<font color='#0000FF'>return</font> fe.<font color='#BB00BB'>image_to_feat_space</font><font face='Lucida Console'>(</font>rect<font face='Lucida Console'>)</font>; |
|
<b>}</b> |
|
|
|
<font color='#009900'>// ---------------------------------------------------------------------------------------- |
|
</font> |
|
<font color='#0000FF'>template</font> <font color='#5555FF'><</font> |
|
<font color='#0000FF'>typename</font> feature_extractor, |
|
<font color='#0000FF'>typename</font> hash_function_type |
|
<font color='#5555FF'>></font> |
|
<font color='#0000FF'>const</font> point hashed_feature_image<font color='#5555FF'><</font>feature_extractor,hash_function_type<font color='#5555FF'>></font>:: |
|
<b><a name='feat_to_image_space'></a>feat_to_image_space</b> <font face='Lucida Console'>(</font> |
|
<font color='#0000FF'>const</font> point<font color='#5555FF'>&</font> p |
|
<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> |
|
<b>{</b> |
|
<font color='#0000FF'>return</font> fe.<font color='#BB00BB'>feat_to_image_space</font><font face='Lucida Console'>(</font>p<font face='Lucida Console'>)</font>; |
|
<b>}</b> |
|
|
|
<font color='#009900'>// ---------------------------------------------------------------------------------------- |
|
</font> |
|
<font color='#0000FF'>template</font> <font color='#5555FF'><</font> |
|
<font color='#0000FF'>typename</font> feature_extractor, |
|
<font color='#0000FF'>typename</font> hash_function_type |
|
<font color='#5555FF'>></font> |
|
<font color='#0000FF'>const</font> rectangle hashed_feature_image<font color='#5555FF'><</font>feature_extractor,hash_function_type<font color='#5555FF'>></font>:: |
|
<b><a name='feat_to_image_space'></a>feat_to_image_space</b> <font face='Lucida Console'>(</font> |
|
<font color='#0000FF'>const</font> rectangle<font color='#5555FF'>&</font> rect |
|
<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> |
|
<b>{</b> |
|
<font color='#0000FF'>return</font> fe.<font color='#BB00BB'>feat_to_image_space</font><font face='Lucida Console'>(</font>rect<font face='Lucida Console'>)</font>; |
|
<b>}</b> |
|
|
|
<font color='#009900'>// ---------------------------------------------------------------------------------------- |
|
</font> |
|
<b>}</b> |
|
|
|
<font color='#0000FF'>#endif</font> <font color='#009900'>// DLIB_HASHED_IMAGE_FEATUrES_Hh_ |
|
</font> |
|
|
|
|
|
</pre></body></html> |
