1 <!-- Copyright 2008 Lubomir Bourdev and Hailin Jin
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9 Copyright 2005-2007 Adobe Systems Incorporated
10 Distributed under the MIT License (see accompanying file LICENSE_1_0_0.txt
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40 <div class=
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41 <h1>image_view_factory.hpp
</h1><a href=
"g_i_l_0227.html">Go to the documentation of this file.
</a><div class=
"fragment"><pre class=
"fragment"><a name=
"l00001"></a>00001 <span class=
"comment">/*
</span>
42 <a name=
"l00002"></a>00002 <span class=
"comment"> Copyright
2005-
2007 Adobe Systems Incorporated
</span>
43 <a name=
"l00003"></a>00003 <span class=
"comment"> </span>
44 <a name=
"l00004"></a>00004 <span class=
"comment"> Use, modification and distribution are subject to the Boost Software License,
</span>
45 <a name=
"l00005"></a>00005 <span class=
"comment"> Version
1.0. (See accompanying file LICENSE_1_0.txt or copy at
</span>
46 <a name=
"l00006"></a>00006 <span class=
"comment"> http://www.boost.org/LICENSE_1_0.txt).
</span>
47 <a name=
"l00007"></a>00007 <span class=
"comment"></span>
48 <a name=
"l00008"></a>00008 <span class=
"comment"> See http://opensource.adobe.com/gil for most recent version including documentation.
</span>
49 <a name=
"l00009"></a>00009 <span class=
"comment">*/
</span>
50 <a name=
"l00010"></a>00010
51 <a name=
"l00011"></a>00011 <span class=
"comment">/*************************************************************************************************/
</span>
52 <a name=
"l00012"></a>00012
53 <a name=
"l00013"></a>00013 <span class=
"preprocessor">#ifndef GIL_IMAGE_VIEW_FACTORY_HPP
</span>
54 <a name=
"l00014"></a>00014 <span class=
"preprocessor"></span><span class=
"preprocessor">#define GIL_IMAGE_VIEW_FACTORY_HPP
</span>
55 <a name=
"l00015"></a>00015 <span class=
"preprocessor"></span>
56 <a name=
"l00025"></a>00025
57 <a name=
"l00027"></a>00027 <span class=
"preprocessor">#include
<cassert
></span>
58 <a name=
"l00028"></a>00028 <span class=
"preprocessor">#include
<cstddef
></span>
59 <a name=
"l00029"></a>00029 <span class=
"preprocessor">#include
"<a class="code
" href="g_i_l_0094.html
" title="GIL configuration file.
">gil_config.hpp</a>"</span>
60 <a name=
"l00030"></a>00030 <span class=
"preprocessor">#include
"<a class="code
" href="g_i_l_0238.html
" title="metafunctions that construct types or return type properties
">metafunctions.hpp</a>"</span>
61 <a name=
"l00031"></a>00031 <span class=
"preprocessor">#include
"<a class="code
" href="gray_8hpp.html
" title="Support for grayscale color space and variants.
">gray.hpp</a>"</span>
62 <a name=
"l00032"></a>00032 <span class=
"preprocessor">#include
"<a class="code
" href="g_i_l_0071.html
" title="GIL default color space conversions.
">color_convert.hpp</a>"</span>
63 <a name=
"l00033"></a>00033
64 <a name=
"l00037"></a>00037
65 <a name=
"l00041"></a>00041
66 <a name=
"l00042"></a>00042 <span class=
"keyword">namespace
</span>boost {
<span class=
"keyword">namespace
</span>gil {
67 <a name=
"l00043"></a>00043 <span class=
"keyword">struct
</span>default_color_converter;
68 <a name=
"l00044"></a>00044
69 <a name=
"l00045"></a>00045 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> T
> <span class=
"keyword">struct
</span>dynamic_x_step_type;
70 <a name=
"l00046"></a>00046 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> T
> <span class=
"keyword">struct
</span>dynamic_y_step_type;
71 <a name=
"l00047"></a>00047 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> T
> <span class=
"keyword">struct
</span>transposed_type;
72 <a name=
"l00048"></a>00048
73 <a name=
"l00051"></a>00051 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> View
>
74 <a name=
"l00052"></a><a class=
"code" href=
"g_i_l_0532.html">00052</a> <span class=
"keyword">struct
</span><a class=
"code" href=
"g_i_l_0532.html" title=
"Returns the type of a view that has a dynamic step along both X and Y.">dynamic_xy_step_type
</a> :
<span class=
"keyword">public
</span> dynamic_y_step_type
<typename dynamic_x_step_type
<View
>::type
> {};
75 <a name=
"l00053"></a>00053
76 <a name=
"l00056"></a>00056 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> View
>
77 <a name=
"l00057"></a><a class=
"code" href=
"g_i_l_0531.html">00057</a> <span class=
"keyword">struct
</span><a class=
"code" href=
"g_i_l_0531.html" title=
"Returns the type of a transposed view that has a dynamic step along both X and Y...">dynamic_xy_step_transposed_type
</a> :
<span class=
"keyword">public
</span> <a class=
"code" href=
"g_i_l_0532.html" title=
"Returns the type of a view that has a dynamic step along both X and Y.">dynamic_xy_step_type
</a><typename transposed_type
<View
>::type
> {};
78 <a name=
"l00058"></a>00058
79 <a name=
"l00059"></a>00059
80 <a name=
"l00062"></a>00062 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> Iterator
>
81 <a name=
"l00063"></a>00063 <span class=
"keyword">typename
</span> <a class=
"code" href=
"g_i_l_0627.html" title=
"Given a pixel iterator defining access to pixels along a row, returns the types of...">type_from_x_iterator
<Iterator
>::view_t
</a>
82 <a name=
"l00064"></a><a class=
"code" href=
"g_i_l_0140.html#g258d615c33c66b17c85b018297164df1">00064</a> <a class=
"code" href=
"g_i_l_0140.html#g558c29855a5b73404d4d21f22832a624" title=
"Constructing image views from raw interleaved pixel data.">interleaved_view
</a>(std::size_t width, std::size_t height,
83 <a name=
"l00065"></a>00065 Iterator pixels, std::ptrdiff_t rowsize_in_bytes) {
84 <a name=
"l00066"></a>00066 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> <a class=
"code" href=
"g_i_l_0627.html" title=
"Given a pixel iterator defining access to pixels along a row, returns the types of...">type_from_x_iterator
<Iterator
>::view_t
</a> RView;
85 <a name=
"l00067"></a>00067 <span class=
"keywordflow">return
</span> RView(width, height,
<span class=
"keyword">typename
</span> RView::locator(pixels, rowsize_in_bytes));
86 <a name=
"l00068"></a>00068 }
87 <a name=
"l00069"></a>00069
88 <a name=
"l00072"></a>00072 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> Iterator
>
89 <a name=
"l00073"></a>00073 <span class=
"keyword">typename
</span> type_from_x_iterator
<Iterator
>::view_t
90 <a name=
"l00074"></a><a class=
"code" href=
"g_i_l_0140.html#g558c29855a5b73404d4d21f22832a624">00074</a> <a class=
"code" href=
"g_i_l_0140.html#g558c29855a5b73404d4d21f22832a624" title=
"Constructing image views from raw interleaved pixel data.">interleaved_view
</a>(
<a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">point2
<std::size_t
></a> dim,
91 <a name=
"l00075"></a>00075 Iterator pixels, std::ptrdiff_t rowsize_in_bytes) {
92 <a name=
"l00076"></a>00076 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> <a class=
"code" href=
"g_i_l_0627.html" title=
"Given a pixel iterator defining access to pixels along a row, returns the types of...">type_from_x_iterator
<Iterator
>::view_t
</a> RView;
93 <a name=
"l00077"></a>00077 <span class=
"keywordflow">return
</span> RView(dim,
<span class=
"keyword">typename
</span> RView::locator(pixels, rowsize_in_bytes));
94 <a name=
"l00078"></a>00078 }
95 <a name=
"l00079"></a>00079
96 <a name=
"l00081"></a>00081 <span class=
"comment">// interleaved_view_get_raw_data, planar_view_get_raw_data - return pointers to the raw data (the channels) of a basic homogeneous view.
</span>
97 <a name=
"l00083"></a>00083 <span class=
"comment"></span>
98 <a name=
"l00084"></a>00084 <span class=
"keyword">namespace
</span>detail {
99 <a name=
"l00085"></a>00085 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> View,
<span class=
"keywordtype">bool
</span> IsMutable
> <span class=
"keyword">struct
</span>channel_pointer_type_impl;
100 <a name=
"l00086"></a>00086
101 <a name=
"l00087"></a>00087 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> View
> <span class=
"keyword">struct
</span>channel_pointer_type_impl
<View, true
> {
102 <a name=
"l00088"></a>00088 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> channel_type
<View
>::type* type;
103 <a name=
"l00089"></a>00089 };
104 <a name=
"l00090"></a>00090 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> View
> <span class=
"keyword">struct
</span>channel_pointer_type_impl
<View, false
> {
105 <a name=
"l00091"></a>00091 <span class=
"keyword">typedef
</span> <span class=
"keyword">const
</span> <span class=
"keyword">typename
</span> channel_type
<View
>::type* type;
106 <a name=
"l00092"></a>00092 };
107 <a name=
"l00093"></a>00093
108 <a name=
"l00094"></a>00094 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> View
> <span class=
"keyword">struct
</span>channel_pointer_type
109 <a name=
"l00095"></a>00095 :
<span class=
"keyword">public
</span> channel_pointer_type_impl
<View, view_is_mutable
<View
>::value
> {};
110 <a name=
"l00096"></a>00096 }
<span class=
"comment">// namespace detail
</span>
111 <a name=
"l00097"></a>00097
112 <a name=
"l00100"></a>00100 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> HomogeneousView
>
113 <a name=
"l00101"></a><a class=
"code" href=
"g_i_l_0140.html#g01d2b0e1eb77cd5cafb18f4140278918">00101</a> <span class=
"keyword">typename
</span> detail::channel_pointer_type
<HomogeneousView
>::type
<a class=
"code" href=
"g_i_l_0140.html#g01d2b0e1eb77cd5cafb18f4140278918" title=
"Returns C pointer to the the channels of an interleaved homogeneous view.">interleaved_view_get_raw_data
</a>(
<span class=
"keyword">const
</span> HomogeneousView
& <a class=
"code" href=
"g_i_l_0135.html#g55e45a15dddfc0d870c2f7fb9739cb2e" title=
"Returns the non-constant-pixel view of any image. The returned view is any view.">view
</a>) {
114 <a name=
"l00102"></a>00102 BOOST_STATIC_ASSERT((!is_planar
<HomogeneousView
>::value
&& <a class=
"code" href=
"g_i_l_0628.html" title=
"Basic views must be over basic locators.">view_is_basic
<HomogeneousView
>::value
</a>));
115 <a name=
"l00103"></a>00103 BOOST_STATIC_ASSERT((boost::is_pointer
<typename HomogeneousView::x_iterator
>::value));
116 <a name=
"l00104"></a>00104
117 <a name=
"l00105"></a>00105 <span class=
"keywordflow">return
</span> &at_c
<0>(
<a class=
"code" href=
"g_i_l_0135.html#g55e45a15dddfc0d870c2f7fb9739cb2e" title=
"Returns the non-constant-pixel view of any image. The returned view is any view.">view
</a>(
0,
0));
118 <a name=
"l00106"></a>00106 }
119 <a name=
"l00107"></a>00107
120 <a name=
"l00110"></a>00110 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> HomogeneousView
>
121 <a name=
"l00111"></a><a class=
"code" href=
"g_i_l_0140.html#ga696176662e719ef5637c2ed4d9a2035">00111</a> <span class=
"keyword">typename
</span> detail::channel_pointer_type
<HomogeneousView
>::type
<a class=
"code" href=
"g_i_l_0140.html#ga696176662e719ef5637c2ed4d9a2035" title=
"Returns C pointer to the the channels of a given color plane of a planar homogeneous...">planar_view_get_raw_data
</a>(
<span class=
"keyword">const
</span> HomogeneousView
& <a class=
"code" href=
"g_i_l_0135.html#g55e45a15dddfc0d870c2f7fb9739cb2e" title=
"Returns the non-constant-pixel view of any image. The returned view is any view.">view
</a>,
<span class=
"keywordtype">int
</span> plane_index) {
122 <a name=
"l00112"></a>00112 BOOST_STATIC_ASSERT((is_planar
<HomogeneousView
>::value
&& <a class=
"code" href=
"g_i_l_0628.html" title=
"Basic views must be over basic locators.">view_is_basic
<HomogeneousView
>::value
</a>));
123 <a name=
"l00113"></a>00113 <span class=
"keywordflow">return
</span> dynamic_at_c(view.row_begin(
0),plane_index);
124 <a name=
"l00114"></a>00114 }
125 <a name=
"l00115"></a>00115
126 <a name=
"l00116"></a>00116
127 <a name=
"l00120"></a>00120
128 <a name=
"l00125"></a>00125 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> SrcConstRefP,
<span class=
"keyword">typename
</span> DstP,
<span class=
"keyword">typename
</span> CC=default_color_converter
> <span class=
"comment">// const_reference to the source pixel and destination pixel value
</span>
129 <a name=
"l00126"></a><a class=
"code" href=
"g_i_l_0022.html">00126</a> <span class=
"keyword">class
</span><a class=
"code" href=
"g_i_l_0022.html" title=
"Function object that given a source pixel, returns it converted to a given color...">color_convert_deref_fn
</a> :
<span class=
"keyword">public
</span> <a class=
"code" href=
"g_i_l_0475.html" title=
"Helper base class for pixel dereference adaptors.">deref_base
</a><color_convert_deref_fn
<SrcConstRefP,DstP,CC
>, DstP, DstP, const DstP
&, SrcConstRefP, DstP, false
> {
130 <a name=
"l00127"></a>00127 <span class=
"keyword">private
</span>:
131 <a name=
"l00128"></a>00128 CC _cc;
<span class=
"comment">// color-converter
</span>
132 <a name=
"l00129"></a>00129 <span class=
"keyword">public
</span>:
133 <a name=
"l00130"></a>00130 <a class=
"code" href=
"g_i_l_0022.html" title=
"Function object that given a source pixel, returns it converted to a given color...">color_convert_deref_fn
</a>() {}
134 <a name=
"l00131"></a>00131 <a class=
"code" href=
"g_i_l_0022.html" title=
"Function object that given a source pixel, returns it converted to a given color...">color_convert_deref_fn
</a>(CC cc_in) : _cc(cc_in) {}
135 <a name=
"l00132"></a>00132
136 <a name=
"l00133"></a>00133 DstP operator()(SrcConstRefP srcP)
<span class=
"keyword"> const
</span>{
137 <a name=
"l00134"></a>00134 DstP dstP;
138 <a name=
"l00135"></a>00135 _cc(srcP,dstP);
139 <a name=
"l00136"></a>00136 <span class=
"keywordflow">return
</span> dstP;
140 <a name=
"l00137"></a>00137 }
141 <a name=
"l00138"></a>00138 };
142 <a name=
"l00139"></a>00139
143 <a name=
"l00140"></a>00140 <span class=
"keyword">namespace
</span>detail {
144 <a name=
"l00141"></a>00141 <span class=
"comment">// Add color converter upon dereferencing
</span>
145 <a name=
"l00142"></a>00142 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> SrcView,
<span class=
"keyword">typename
</span> CC,
<span class=
"keyword">typename
</span> DstP,
<span class=
"keyword">typename
</span> SrcP
>
146 <a name=
"l00143"></a>00143 <span class=
"keyword">struct
</span>_color_converted_view_type {
147 <a name=
"l00144"></a>00144 <span class=
"keyword">private
</span>:
148 <a name=
"l00145"></a>00145 <span class=
"keyword">typedef
</span> <a class=
"code" href=
"g_i_l_0022.html" title=
"Function object that given a source pixel, returns it converted to a given color...">color_convert_deref_fn
<typename SrcView::const_t::reference,DstP,CC
></a> deref_t;
149 <a name=
"l00146"></a>00146 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> SrcView::template add_deref
<deref_t
> add_ref_t;
150 <a name=
"l00147"></a>00147 <span class=
"keyword">public
</span>:
151 <a name=
"l00148"></a>00148 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> add_ref_t::type type;
152 <a name=
"l00149"></a>00149 <span class=
"keyword">static
</span> type make(
<span class=
"keyword">const
</span> SrcView
& sv,CC cc) {
<span class=
"keywordflow">return
</span> add_ref_t::make(sv,deref_t(cc));}
153 <a name=
"l00150"></a>00150 };
154 <a name=
"l00151"></a>00151
155 <a name=
"l00152"></a>00152 <span class=
"comment">// If the Src view has the same pixel type as the target, there is no need for color conversion
</span>
156 <a name=
"l00153"></a>00153 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> SrcView,
<span class=
"keyword">typename
</span> CC,
<span class=
"keyword">typename
</span> DstP
>
157 <a name=
"l00154"></a>00154 <span class=
"keyword">struct
</span>_color_converted_view_type
<SrcView,CC,DstP,DstP
> {
158 <a name=
"l00155"></a>00155 <span class=
"keyword">typedef
</span> SrcView type;
159 <a name=
"l00156"></a>00156 <span class=
"keyword">static
</span> type make(
<span class=
"keyword">const
</span> SrcView
& sv,CC) {
<span class=
"keywordflow">return
</span> sv;}
160 <a name=
"l00157"></a>00157 };
161 <a name=
"l00158"></a>00158 }
<span class=
"comment">// namespace detail
</span>
162 <a name=
"l00159"></a>00159
163 <a name=
"l00160"></a>00160
164 <a name=
"l00163"></a>00163 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> SrcView,
<span class=
"keyword">typename
</span> DstP,
<span class=
"keyword">typename
</span> CC=default_color_converter
>
165 <a name=
"l00164"></a><a class=
"code" href=
"g_i_l_0434.html">00164</a> <span class=
"keyword">struct
</span><a class=
"code" href=
"g_i_l_0434.html" title=
"Returns the type of a view that does color conversion upon dereferencing its pixels...">color_converted_view_type
</a> :
<span class=
"keyword">public
</span> detail::_color_converted_view_type
<SrcView,
166 <a name=
"l00165"></a>00165 CC,
167 <a name=
"l00166"></a>00166 DstP,
168 <a name=
"l00167"></a>00167 typename SrcView::value_type
> {
169 <a name=
"l00168"></a>00168 GIL_CLASS_REQUIRE(DstP, boost::gil,
<a class=
"code" href=
"g_i_l_0328.html" title=
"Pixel concept that allows for changing its channels.">MutablePixelConcept
</a>)
<span class=
"comment">//why does it have to be mutable???
</span>
170 <a name=
"l00169"></a>00169 };
171 <a name=
"l00170"></a>00170
172 <a name=
"l00171"></a>00171
173 <a name=
"l00174"></a>00174 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> DstP,
<span class=
"keyword">typename
</span> View,
<span class=
"keyword">typename
</span> CC
>
174 <a name=
"l00175"></a><a class=
"code" href=
"g_i_l_0161.html#gb5114cdb6c2a34f6706952f80baf2dfa">00175</a> <span class=
"keyword">inline
</span> <span class=
"keyword">typename
</span> <a class=
"code" href=
"g_i_l_0434.html" title=
"Returns the type of a view that does color conversion upon dereferencing its pixels...">color_converted_view_type
<View,DstP,CC
>::type
</a> <a class=
"code" href=
"g_i_l_0161.html#g4e84970128101b572125f025dc81f8e0" title=
"overload of generic color_converted_view with the default color-converter">color_converted_view
</a>(
<span class=
"keyword">const
</span> View
& src,CC cc) {
175 <a name=
"l00176"></a>00176 <span class=
"keywordflow">return
</span> <a class=
"code" href=
"g_i_l_0434.html" title=
"Returns the type of a view that does color conversion upon dereferencing its pixels...">color_converted_view_type
<View,DstP,CC
>::make
</a>(src,cc);
176 <a name=
"l00177"></a>00177 }
177 <a name=
"l00178"></a>00178
178 <a name=
"l00181"></a>00181 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> DstP,
<span class=
"keyword">typename
</span> View
>
179 <a name=
"l00182"></a>00182 <span class=
"keyword">inline
</span> <span class=
"keyword">typename
</span> color_converted_view_type
<View,DstP
>::type
180 <a name=
"l00183"></a><a class=
"code" href=
"g_i_l_0161.html#gf2cd4971200b4e54dd2fda3cb9e24d0f">00183</a> <a class=
"code" href=
"g_i_l_0161.html#g4e84970128101b572125f025dc81f8e0" title=
"overload of generic color_converted_view with the default color-converter">color_converted_view
</a>(
<span class=
"keyword">const
</span> View
& src) {
181 <a name=
"l00184"></a>00184 <span class=
"keywordflow">return
</span> color_converted_view
<DstP
>(src,
<a class=
"code" href=
"g_i_l_0452.html" title=
"class for color-converting one pixel to another">default_color_converter
</a>());
182 <a name=
"l00185"></a>00185 }
183 <a name=
"l00186"></a>00186
184 <a name=
"l00190"></a>00190
185 <a name=
"l00192"></a>00192 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> View
>
186 <a name=
"l00193"></a>00193 <span class=
"keyword">inline
</span> <span class=
"keyword">typename
</span> dynamic_y_step_type
<View
>::type flipped_up_down_view(
<span class=
"keyword">const
</span> View
& src) {
187 <a name=
"l00194"></a>00194 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> dynamic_y_step_type
<View
>::type RView;
188 <a name=
"l00195"></a>00195 <span class=
"keywordflow">return
</span> RView(src.dimensions(),
<span class=
"keyword">typename
</span> RView::xy_locator(src.xy_at(
0,src.height()-
1),-
1));
189 <a name=
"l00196"></a>00196 }
190 <a name=
"l00197"></a>00197
191 <a name=
"l00201"></a>00201
192 <a name=
"l00203"></a>00203 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> View
>
193 <a name=
"l00204"></a>00204 <span class=
"keyword">inline
</span> <span class=
"keyword">typename
</span> dynamic_x_step_type
<View
>::type flipped_left_right_view(
<span class=
"keyword">const
</span> View
& src) {
194 <a name=
"l00205"></a>00205 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> dynamic_x_step_type
<View
>::type RView;
195 <a name=
"l00206"></a>00206 <span class=
"keywordflow">return
</span> RView(src.dimensions(),
<span class=
"keyword">typename
</span> RView::xy_locator(src.xy_at(src.width()-
1,
0),-
1,
1));
196 <a name=
"l00207"></a>00207 }
197 <a name=
"l00208"></a>00208
198 <a name=
"l00212"></a>00212
199 <a name=
"l00214"></a>00214 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> View
>
200 <a name=
"l00215"></a>00215 <span class=
"keyword">inline
</span> <span class=
"keyword">typename
</span> dynamic_xy_step_transposed_type
<View
>::type transposed_view(
<span class=
"keyword">const
</span> View
& src) {
201 <a name=
"l00216"></a>00216 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> dynamic_xy_step_transposed_type
<View
>::type RView;
202 <a name=
"l00217"></a>00217 <span class=
"keywordflow">return
</span> RView(src.height(),src.width(),
<span class=
"keyword">typename
</span> RView::xy_locator(src.xy_at(
0,
0),
1,
1,
<span class=
"keyword">true
</span>));
203 <a name=
"l00218"></a>00218 }
204 <a name=
"l00219"></a>00219
205 <a name=
"l00223"></a>00223
206 <a name=
"l00225"></a>00225 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> View
>
207 <a name=
"l00226"></a>00226 <span class=
"keyword">inline
</span> <span class=
"keyword">typename
</span> dynamic_xy_step_transposed_type
<View
>::type rotated90cw_view(
<span class=
"keyword">const
</span> View
& src) {
208 <a name=
"l00227"></a>00227 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> dynamic_xy_step_transposed_type
<View
>::type RView;
209 <a name=
"l00228"></a>00228 <span class=
"keywordflow">return
</span> RView(src.height(),src.width(),
<span class=
"keyword">typename
</span> RView::xy_locator(src.xy_at(
0,src.height()-
1),-
1,
1,
<span class=
"keyword">true
</span>));
210 <a name=
"l00229"></a>00229 }
211 <a name=
"l00230"></a>00230
212 <a name=
"l00234"></a>00234
213 <a name=
"l00236"></a>00236 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> View
>
214 <a name=
"l00237"></a>00237 <span class=
"keyword">inline
</span> <span class=
"keyword">typename
</span> dynamic_xy_step_transposed_type
<View
>::type rotated90ccw_view(
<span class=
"keyword">const
</span> View
& src) {
215 <a name=
"l00238"></a>00238 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> dynamic_xy_step_transposed_type
<View
>::type RView;
216 <a name=
"l00239"></a>00239 <span class=
"keywordflow">return
</span> RView(src.height(),src.width(),
<span class=
"keyword">typename
</span> RView::xy_locator(src.xy_at(src.width()-
1,
0),
1,-
1,
<span class=
"keyword">true
</span>));
217 <a name=
"l00240"></a>00240 }
218 <a name=
"l00241"></a>00241
219 <a name=
"l00245"></a>00245
220 <a name=
"l00247"></a>00247 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> View
>
221 <a name=
"l00248"></a>00248 <span class=
"keyword">inline
</span> <span class=
"keyword">typename
</span> dynamic_xy_step_type
<View
>::type rotated180_view(
<span class=
"keyword">const
</span> View
& src) {
222 <a name=
"l00249"></a>00249 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> dynamic_xy_step_type
<View
>::type RView;
223 <a name=
"l00250"></a>00250 <span class=
"keywordflow">return
</span> RView(src.dimensions(),
<span class=
"keyword">typename
</span> RView::xy_locator(src.xy_at(src.width()-
1,src.height()-
1),-
1,-
1));
224 <a name=
"l00251"></a>00251 }
225 <a name=
"l00252"></a>00252
226 <a name=
"l00256"></a>00256
227 <a name=
"l00258"></a>00258 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> View
>
228 <a name=
"l00259"></a>00259 <span class=
"keyword">inline
</span> View subimage_view(
<span class=
"keyword">const
</span> View
& src,
<span class=
"keyword">const
</span> <span class=
"keyword">typename
</span> View::point_t
& topleft,
<span class=
"keyword">const
</span> <span class=
"keyword">typename
</span> View::point_t
& dimensions) {
229 <a name=
"l00260"></a>00260 <span class=
"keywordflow">return
</span> View(dimensions,src.xy_at(topleft));
230 <a name=
"l00261"></a>00261 }
231 <a name=
"l00262"></a>00262
232 <a name=
"l00264"></a>00264 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> View
>
233 <a name=
"l00265"></a>00265 <span class=
"keyword">inline
</span> View subimage_view(
<span class=
"keyword">const
</span> View
& src,
<span class=
"keywordtype">int
</span> xMin,
<span class=
"keywordtype">int
</span> yMin,
<span class=
"keywordtype">int
</span> width,
<span class=
"keywordtype">int
</span> height) {
234 <a name=
"l00266"></a>00266 <span class=
"keywordflow">return
</span> View(width,height,src.xy_at(xMin,yMin));
235 <a name=
"l00267"></a>00267 }
236 <a name=
"l00268"></a>00268
237 <a name=
"l00272"></a>00272
238 <a name=
"l00274"></a>00274 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> View
>
239 <a name=
"l00275"></a>00275 <span class=
"keyword">inline
</span> <span class=
"keyword">typename
</span> dynamic_xy_step_type
<View
>::type subsampled_view(
<span class=
"keyword">const
</span> View
& src,
<span class=
"keyword">typename
</span> View::coord_t xStep,
<span class=
"keyword">typename
</span> View::coord_t yStep) {
240 <a name=
"l00276"></a>00276 assert(xStep
>0 && yStep
>0);
241 <a name=
"l00277"></a>00277 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> dynamic_xy_step_type
<View
>::type RView;
242 <a name=
"l00278"></a>00278 <span class=
"keywordflow">return
</span> RView((src.width()+(xStep-
1))/xStep,(src.height()+(yStep-
1))/yStep,
243 <a name=
"l00279"></a>00279 <span class=
"keyword">typename
</span> RView::xy_locator(src.xy_at(
0,
0),xStep,yStep));
244 <a name=
"l00280"></a>00280 }
245 <a name=
"l00281"></a>00281
246 <a name=
"l00283"></a>00283 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> View
>
247 <a name=
"l00284"></a>00284 <span class=
"keyword">inline
</span> <span class=
"keyword">typename
</span> dynamic_xy_step_type
<View
>::type subsampled_view(
<span class=
"keyword">const
</span> View
& src,
<span class=
"keyword">const
</span> <span class=
"keyword">typename
</span> View::point_t
& step) {
248 <a name=
"l00285"></a>00285 <span class=
"keywordflow">return
</span> subsampled_view(src,step.x,step.y);
249 <a name=
"l00286"></a>00286 }
250 <a name=
"l00287"></a>00287
251 <a name=
"l00291"></a>00291
252 <a name=
"l00292"></a>00292 <span class=
"keyword">namespace
</span>detail {
253 <a name=
"l00293"></a>00293 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> View,
<span class=
"keywordtype">bool
</span> AreChannelsTogether
> <span class=
"keyword">struct
</span>__nth_channel_view_basic;
254 <a name=
"l00294"></a>00294
255 <a name=
"l00295"></a>00295 <span class=
"comment">// nth_channel_view when the channels are not adjacent in memory. This can happen for multi-channel interleaved images
</span>
256 <a name=
"l00296"></a>00296 <span class=
"comment">// or images with a step
</span>
257 <a name=
"l00297"></a>00297 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> View
>
258 <a name=
"l00298"></a>00298 <span class=
"keyword">struct
</span>__nth_channel_view_basic
<View,false
> {
259 <a name=
"l00299"></a>00299 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> view_type
<typename channel_type
<View
>::type, gray_layout_t,
<span class=
"keyword">false
</span>,
<span class=
"keyword">true
</span>, view_is_mutable
<View
>::value
>::type type;
260 <a name=
"l00300"></a>00300
261 <a name=
"l00301"></a>00301 <span class=
"keyword">static
</span> type make(
<span class=
"keyword">const
</span> View
& src,
<span class=
"keywordtype">int
</span> n) {
262 <a name=
"l00302"></a>00302 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> type::xy_locator locator_t;
263 <a name=
"l00303"></a>00303 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> type::x_iterator x_iterator_t;
264 <a name=
"l00304"></a>00304 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> iterator_adaptor_get_base
<x_iterator_t
>::type x_iterator_base_t;
265 <a name=
"l00305"></a>00305 x_iterator_t sit(x_iterator_base_t(
&(src(
0,
0)[n])),src.pixels().pixel_size());
266 <a name=
"l00306"></a>00306 <span class=
"keywordflow">return
</span> type(src.dimensions(),locator_t(sit, src.pixels().row_size()));
267 <a name=
"l00307"></a>00307 }
268 <a name=
"l00308"></a>00308 };
269 <a name=
"l00309"></a>00309
270 <a name=
"l00310"></a>00310 <span class=
"comment">// nth_channel_view when the channels are together in memory (true for simple grayscale or planar images)
</span>
271 <a name=
"l00311"></a>00311 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> View
>
272 <a name=
"l00312"></a>00312 <span class=
"keyword">struct
</span>__nth_channel_view_basic
<View,true
> {
273 <a name=
"l00313"></a>00313 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> view_type
<typename channel_type
<View
>::type, gray_layout_t,
<span class=
"keyword">false
</span>,
<span class=
"keyword">false
</span>, view_is_mutable
<View
>::value
>::type type;
274 <a name=
"l00314"></a>00314 <span class=
"keyword">static
</span> type make(
<span class=
"keyword">const
</span> View
& src,
<span class=
"keywordtype">int
</span> n) {
275 <a name=
"l00315"></a>00315 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> type::x_iterator x_iterator_t;
276 <a name=
"l00316"></a>00316 <span class=
"keywordflow">return
</span> <a class=
"code" href=
"g_i_l_0140.html#g558c29855a5b73404d4d21f22832a624" title=
"Constructing image views from raw interleaved pixel data.">interleaved_view
</a>(src.width(),src.height(),(x_iterator_t)
&(src(
0,
0)[n]), src.pixels().row_size());
277 <a name=
"l00317"></a>00317 }
278 <a name=
"l00318"></a>00318 };
279 <a name=
"l00319"></a>00319
280 <a name=
"l00320"></a>00320 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> View,
<span class=
"keywordtype">bool
</span> IsBasic
> <span class=
"keyword">struct
</span>__nth_channel_view;
281 <a name=
"l00321"></a>00321
282 <a name=
"l00322"></a>00322 <span class=
"comment">// For basic (memory-based) views dispatch to __nth_channel_view_basic
</span>
283 <a name=
"l00323"></a>00323 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> View
> <span class=
"keyword">struct
</span>__nth_channel_view
<View,true
> {
284 <a name=
"l00324"></a>00324 <span class=
"keyword">private
</span>:
285 <a name=
"l00325"></a>00325 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> View::x_iterator src_x_iterator;
286 <a name=
"l00326"></a>00326
287 <a name=
"l00327"></a>00327 <span class=
"comment">// Determines whether the channels of a given pixel iterator are adjacent in memory.
</span>
288 <a name=
"l00328"></a>00328 <span class=
"comment">// Planar and grayscale iterators have channels adjacent in memory, whereas multi-channel interleaved and iterators with non-fundamental step do not.
</span>
289 <a name=
"l00329"></a>00329 BOOST_STATIC_CONSTANT(
<span class=
"keywordtype">bool
</span>, adjacent=
290 <a name=
"l00330"></a>00330 !iterator_is_step
<src_x_iterator
>::value
&&
291 <a name=
"l00331"></a>00331 (is_planar
<src_x_iterator
>::value ||
292 <a name=
"l00332"></a>00332 num_channels
<View
>::value==
1));
293 <a name=
"l00333"></a>00333 <span class=
"keyword">public
</span>:
294 <a name=
"l00334"></a>00334 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> __nth_channel_view_basic
<View,adjacent
>::type type;
295 <a name=
"l00335"></a>00335
296 <a name=
"l00336"></a>00336 <span class=
"keyword">static
</span> type make(
<span class=
"keyword">const
</span> View
& src,
<span class=
"keywordtype">int
</span> n) {
297 <a name=
"l00337"></a>00337 <span class=
"keywordflow">return
</span> __nth_channel_view_basic
<View,adjacent
>::make(src,n);
298 <a name=
"l00338"></a>00338 }
299 <a name=
"l00339"></a>00339 };
300 <a name=
"l00340"></a>00340
301 <a name=
"l00345"></a>00345 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> SrcP
> <span class=
"comment">// SrcP is a reference to PixelConcept (could be pixel value or const/non-const reference)
</span>
302 <a name=
"l00346"></a>00346 <span class=
"comment">// Examples: pixel
<T,L
>, pixel
<T,L
>&, const pixel
<T,L
>&, planar_pixel_reference
<T
&,L
>, planar_pixel_reference
<const T
&,L
></span>
303 <a name=
"l00347"></a><a class=
"code" href=
"g_i_l_0515.html">00347</a> <span class=
"keyword">struct
</span><a class=
"code" href=
"g_i_l_0515.html" title=
"Function object that returns a grayscale reference of the N-th channel of a given...">nth_channel_deref_fn
</a> {
304 <a name=
"l00348"></a>00348 BOOST_STATIC_CONSTANT(
<span class=
"keywordtype">bool
</span>, is_mutable=
<a class=
"code" href=
"g_i_l_0600.html" title=
"Given a model of a pixel, determines whether the model represents a pixel reference...">pixel_is_reference
<SrcP
>::value
</a> && <a class=
"code" href=
"g_i_l_0602.html" title=
"Determines if the given pixel reference is mutable (i.e. its channels can be changed)...">pixel_reference_is_mutable
<SrcP
>::value
</a>);
305 <a name=
"l00349"></a>00349 <span class=
"keyword">private
</span>:
306 <a name=
"l00350"></a>00350 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> remove_reference
<SrcP
>::type src_pixel_t;
307 <a name=
"l00351"></a>00351 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> channel_type
<src_pixel_t
>::type channel_t;
308 <a name=
"l00352"></a>00352 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> src_pixel_t::const_reference const_ref_t;
309 <a name=
"l00353"></a>00353 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> <a class=
"code" href=
"g_i_l_0604.html" title=
"Returns the type of a homogeneous pixel reference given the channel type, layout...">pixel_reference_type
<channel_t,gray_layout_t,false,is_mutable
>::type
</a> ref_t;
310 <a name=
"l00354"></a>00354 <span class=
"keyword">public
</span>:
311 <a name=
"l00355"></a>00355 <span class=
"keyword">typedef
</span> <a class=
"code" href=
"g_i_l_0515.html" title=
"Function object that returns a grayscale reference of the N-th channel of a given...">nth_channel_deref_fn
<const_ref_t
></a> <a class=
"code" href=
"g_i_l_0515.html" title=
"Function object that returns a grayscale reference of the N-th channel of a given...">const_t
</a>;
312 <a name=
"l00356"></a>00356 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> <a class=
"code" href=
"g_i_l_0606.html" title=
"Returns the type of a homogeneous pixel given the channel type and layout.">pixel_value_type
<channel_t,gray_layout_t
>::type
</a> <a class=
"code" href=
"g_i_l_0599.html" title=
"Represents a pixel value (a container of channels). Models: HomogeneousColorBaseValueConcept...">value_type
</a>;
313 <a name=
"l00357"></a>00357 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> <a class=
"code" href=
"g_i_l_0604.html" title=
"Returns the type of a homogeneous pixel reference given the channel type, layout...">pixel_reference_type
<channel_t,gray_layout_t,false,false
>::type
</a> const_reference;
314 <a name=
"l00358"></a>00358 <span class=
"keyword">typedef
</span> SrcP argument_type;
315 <a name=
"l00359"></a>00359 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> mpl::if_c
<is_mutable, ref_t, value_type
>::type reference;
316 <a name=
"l00360"></a>00360 <span class=
"keyword">typedef
</span> reference result_type;
317 <a name=
"l00361"></a>00361
318 <a name=
"l00362"></a>00362 <a class=
"code" href=
"g_i_l_0515.html" title=
"Function object that returns a grayscale reference of the N-th channel of a given...">nth_channel_deref_fn
</a>(
<span class=
"keywordtype">int
</span> n=
0) : _n(n) {}
319 <a name=
"l00363"></a>00363 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> P
> <a class=
"code" href=
"g_i_l_0515.html" title=
"Function object that returns a grayscale reference of the N-th channel of a given...">nth_channel_deref_fn
</a>(
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0515.html" title=
"Function object that returns a grayscale reference of the N-th channel of a given...">nth_channel_deref_fn
<P
></a>& d) : _n(d.
<a class=
"code" href=
"g_i_l_0515.html#da0e3adfe5f3db62623fb73a49c120b3">_n
</a>) {}
320 <a name=
"l00364"></a>00364
321 <a name=
"l00365"></a>00365 <span class=
"keywordtype">int
</span> _n;
<span class=
"comment">// the channel to use
</span>
322 <a name=
"l00366"></a>00366
323 <a name=
"l00367"></a>00367 result_type operator()(argument_type srcP)
<span class=
"keyword"> const
</span>{
324 <a name=
"l00368"></a>00368 <span class=
"keywordflow">return
</span> result_type(srcP[_n]);
325 <a name=
"l00369"></a>00369 }
326 <a name=
"l00370"></a>00370 };
327 <a name=
"l00371"></a>00371
328 <a name=
"l00372"></a>00372 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> View
> <span class=
"keyword">struct
</span>__nth_channel_view
<View,false
> {
329 <a name=
"l00373"></a>00373 <span class=
"keyword">private
</span>:
330 <a name=
"l00374"></a>00374 <span class=
"keyword">typedef
</span> <a class=
"code" href=
"g_i_l_0515.html" title=
"Function object that returns a grayscale reference of the N-th channel of a given...">nth_channel_deref_fn
<typename View::reference
></a> deref_t;
331 <a name=
"l00375"></a>00375 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> View::template add_deref
<deref_t
> AD;
332 <a name=
"l00376"></a>00376 <span class=
"keyword">public
</span>:
333 <a name=
"l00377"></a>00377 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> AD::type type;
334 <a name=
"l00378"></a>00378 <span class=
"keyword">static
</span> type make(
<span class=
"keyword">const
</span> View
& src,
<span class=
"keywordtype">int
</span> n) {
335 <a name=
"l00379"></a>00379 <span class=
"keywordflow">return
</span> AD::make(src, deref_t(n));
336 <a name=
"l00380"></a>00380 }
337 <a name=
"l00381"></a>00381 };
338 <a name=
"l00382"></a>00382 }
<span class=
"comment">// namespace detail
</span>
339 <a name=
"l00383"></a>00383
340 <a name=
"l00390"></a>00390 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> View
>
341 <a name=
"l00391"></a><a class=
"code" href=
"g_i_l_0578.html">00391</a> <span class=
"keyword">struct
</span><a class=
"code" href=
"g_i_l_0578.html" title=
"Given a source image view type View, returns the type of an image view over a single...">nth_channel_view_type
</a> {
342 <a name=
"l00392"></a>00392 <span class=
"keyword">private
</span>:
343 <a name=
"l00393"></a>00393 GIL_CLASS_REQUIRE(View, boost::gil,
<a class=
"code" href=
"g_i_l_0308.html" title=
"GIL&#39;s 2-dimensional view over immutable GIL pixels.">ImageViewConcept
</a>)
344 <a name=
"l00394"></a>00394 <span class=
"keyword">typedef
</span> detail::__nth_channel_view
<View,view_is_basic
<View
>::value
> VB;
345 <a name=
"l00395"></a>00395 <span class=
"keyword">public
</span>:
346 <a name=
"l00396"></a>00396 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> VB::type type;
347 <a name=
"l00397"></a>00397 <span class=
"keyword">static
</span> type make(
<span class=
"keyword">const
</span> View
& src,
<span class=
"keywordtype">int
</span> n) {
<span class=
"keywordflow">return
</span> VB::make(src,n); }
348 <a name=
"l00398"></a>00398 };
349 <a name=
"l00399"></a>00399
350 <a name=
"l00400"></a>00400
351 <a name=
"l00402"></a>00402 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> View
>
352 <a name=
"l00403"></a>00403 <span class=
"keyword">typename
</span> <a class=
"code" href=
"g_i_l_0578.html" title=
"Given a source image view type View, returns the type of an image view over a single...">nth_channel_view_type
<View
>::type
</a> nth_channel_view(
<span class=
"keyword">const
</span> View
& src,
<span class=
"keywordtype">int
</span> n) {
353 <a name=
"l00404"></a>00404 <span class=
"keywordflow">return
</span> <a class=
"code" href=
"g_i_l_0578.html" title=
"Given a source image view type View, returns the type of an image view over a single...">nth_channel_view_type
<View
>::make
</a>(src,n);
354 <a name=
"l00405"></a>00405 }
355 <a name=
"l00406"></a>00406
356 <a name=
"l00407"></a>00407
357 <a name=
"l00408"></a>00408
358 <a name=
"l00409"></a>00409
359 <a name=
"l00410"></a>00410
360 <a name=
"l00411"></a>00411
361 <a name=
"l00412"></a>00412
362 <a name=
"l00416"></a>00416
363 <a name=
"l00417"></a>00417 <span class=
"keyword">namespace
</span>detail {
364 <a name=
"l00418"></a>00418 <span class=
"keyword">template
</span> <<span class=
"keywordtype">int
</span> K,
<span class=
"keyword">typename
</span> View,
<span class=
"keywordtype">bool
</span> AreChannelsTogether
> <span class=
"keyword">struct
</span>__kth_channel_view_basic;
365 <a name=
"l00419"></a>00419
366 <a name=
"l00420"></a>00420 <span class=
"comment">// kth_channel_view when the channels are not adjacent in memory. This can happen for multi-channel interleaved images
</span>
367 <a name=
"l00421"></a>00421 <span class=
"comment">// or images with a step
</span>
368 <a name=
"l00422"></a>00422 <span class=
"keyword">template
</span> <<span class=
"keywordtype">int
</span> K,
<span class=
"keyword">typename
</span> View
>
369 <a name=
"l00423"></a>00423 <span class=
"keyword">struct
</span>__kth_channel_view_basic
<K,View,false
> {
370 <a name=
"l00424"></a>00424 <span class=
"keyword">private
</span>:
371 <a name=
"l00425"></a>00425 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> kth_element_type
<typename View::value_type,K
>::type channel_t;
372 <a name=
"l00426"></a>00426 <span class=
"keyword">public
</span>:
373 <a name=
"l00427"></a>00427 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> view_type
<channel_t, gray_layout_t, false, true, view_is_mutable
<View
>::value
>::type type;
374 <a name=
"l00428"></a>00428
375 <a name=
"l00429"></a>00429 <span class=
"keyword">static
</span> type make(
<span class=
"keyword">const
</span> View
& src) {
376 <a name=
"l00430"></a>00430 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> type::xy_locator locator_t;
377 <a name=
"l00431"></a>00431 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> type::x_iterator x_iterator_t;
378 <a name=
"l00432"></a>00432 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> iterator_adaptor_get_base
<x_iterator_t
>::type x_iterator_base_t;
379 <a name=
"l00433"></a>00433 x_iterator_t sit(x_iterator_base_t(
&at_c
<K
>(src(
0,
0))),src.pixels().pixel_size());
380 <a name=
"l00434"></a>00434 <span class=
"keywordflow">return
</span> type(src.dimensions(),locator_t(sit, src.pixels().row_size()));
381 <a name=
"l00435"></a>00435 }
382 <a name=
"l00436"></a>00436 };
383 <a name=
"l00437"></a>00437
384 <a name=
"l00438"></a>00438 <span class=
"comment">// kth_channel_view when the channels are together in memory (true for simple grayscale or planar images)
</span>
385 <a name=
"l00439"></a>00439 <span class=
"keyword">template
</span> <<span class=
"keywordtype">int
</span> K,
<span class=
"keyword">typename
</span> View
>
386 <a name=
"l00440"></a>00440 <span class=
"keyword">struct
</span>__kth_channel_view_basic
<K,View,true
> {
387 <a name=
"l00441"></a>00441 <span class=
"keyword">private
</span>:
388 <a name=
"l00442"></a>00442 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> kth_element_type
<typename View::value_type, K
>::type channel_t;
389 <a name=
"l00443"></a>00443 <span class=
"keyword">public
</span>:
390 <a name=
"l00444"></a>00444 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> view_type
<channel_t, gray_layout_t, false, false, view_is_mutable
<View
>::value
>::type type;
391 <a name=
"l00445"></a>00445 <span class=
"keyword">static
</span> type make(
<span class=
"keyword">const
</span> View
& src) {
392 <a name=
"l00446"></a>00446 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> type::x_iterator x_iterator_t;
393 <a name=
"l00447"></a>00447 <span class=
"keywordflow">return
</span> <a class=
"code" href=
"g_i_l_0140.html#g558c29855a5b73404d4d21f22832a624" title=
"Constructing image views from raw interleaved pixel data.">interleaved_view
</a>(src.width(),src.height(),(x_iterator_t)
&at_c
<K
>(src(
0,
0)), src.pixels().row_size());
394 <a name=
"l00448"></a>00448 }
395 <a name=
"l00449"></a>00449 };
396 <a name=
"l00450"></a>00450
397 <a name=
"l00451"></a>00451 <span class=
"keyword">template
</span> <<span class=
"keywordtype">int
</span> K,
<span class=
"keyword">typename
</span> View,
<span class=
"keywordtype">bool
</span> IsBasic
> <span class=
"keyword">struct
</span>__kth_channel_view;
398 <a name=
"l00452"></a>00452
399 <a name=
"l00453"></a>00453 <span class=
"comment">// For basic (memory-based) views dispatch to __kth_channel_view_basic
</span>
400 <a name=
"l00454"></a>00454 <span class=
"keyword">template
</span> <<span class=
"keywordtype">int
</span> K,
<span class=
"keyword">typename
</span> View
> <span class=
"keyword">struct
</span>__kth_channel_view
<K,View,true
> {
401 <a name=
"l00455"></a>00455 <span class=
"keyword">private
</span>:
402 <a name=
"l00456"></a>00456 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> View::x_iterator src_x_iterator;
403 <a name=
"l00457"></a>00457
404 <a name=
"l00458"></a>00458 <span class=
"comment">// Determines whether the channels of a given pixel iterator are adjacent in memory.
</span>
405 <a name=
"l00459"></a>00459 <span class=
"comment">// Planar and grayscale iterators have channels adjacent in memory, whereas multi-channel interleaved and iterators with non-fundamental step do not.
</span>
406 <a name=
"l00460"></a>00460 BOOST_STATIC_CONSTANT(
<span class=
"keywordtype">bool
</span>, adjacent=
407 <a name=
"l00461"></a>00461 !iterator_is_step
<src_x_iterator
>::value
&&
408 <a name=
"l00462"></a>00462 (is_planar
<src_x_iterator
>::value ||
409 <a name=
"l00463"></a>00463 num_channels
<View
>::value==
1));
410 <a name=
"l00464"></a>00464 <span class=
"keyword">public
</span>:
411 <a name=
"l00465"></a>00465 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> __kth_channel_view_basic
<K,View,adjacent
>::type type;
412 <a name=
"l00466"></a>00466
413 <a name=
"l00467"></a>00467 <span class=
"keyword">static
</span> type make(
<span class=
"keyword">const
</span> View
& src) {
414 <a name=
"l00468"></a>00468 <span class=
"keywordflow">return
</span> __kth_channel_view_basic
<K,View,adjacent
>::make(src);
415 <a name=
"l00469"></a>00469 }
416 <a name=
"l00470"></a>00470 };
417 <a name=
"l00471"></a>00471
418 <a name=
"l00476"></a>00476 <span class=
"keyword">template
</span> <<span class=
"keywordtype">int
</span> K,
<span class=
"keyword">typename
</span> SrcP
> <span class=
"comment">// SrcP is a reference to PixelConcept (could be pixel value or const/non-const reference)
</span>
419 <a name=
"l00477"></a>00477 <span class=
"comment">// Examples: pixel
<T,L
>, pixel
<T,L
>&, const pixel
<T,L
>&, planar_pixel_reference
<T
&,L
>, planar_pixel_reference
<const T
&,L
></span>
420 <a name=
"l00478"></a><a class=
"code" href=
"g_i_l_0513.html">00478</a> <span class=
"keyword">struct
</span><a class=
"code" href=
"g_i_l_0513.html" title=
"Function object that returns a grayscale reference of the K-th channel (specified...">kth_channel_deref_fn
</a> {
421 <a name=
"l00479"></a>00479 BOOST_STATIC_CONSTANT(
<span class=
"keywordtype">bool
</span>, is_mutable=
<a class=
"code" href=
"g_i_l_0600.html" title=
"Given a model of a pixel, determines whether the model represents a pixel reference...">pixel_is_reference
<SrcP
>::value
</a> && <a class=
"code" href=
"g_i_l_0602.html" title=
"Determines if the given pixel reference is mutable (i.e. its channels can be changed)...">pixel_reference_is_mutable
<SrcP
>::value
</a>);
422 <a name=
"l00480"></a>00480 <span class=
"keyword">private
</span>:
423 <a name=
"l00481"></a>00481 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> remove_reference
<SrcP
>::type src_pixel_t;
424 <a name=
"l00482"></a>00482 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> kth_element_type
<src_pixel_t, K
>::type channel_t;
425 <a name=
"l00483"></a>00483 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> src_pixel_t::const_reference const_ref_t;
426 <a name=
"l00484"></a>00484 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> <a class=
"code" href=
"g_i_l_0604.html" title=
"Returns the type of a homogeneous pixel reference given the channel type, layout...">pixel_reference_type
<channel_t,gray_layout_t,false,is_mutable
>::type
</a> ref_t;
427 <a name=
"l00485"></a>00485 <span class=
"keyword">public
</span>:
428 <a name=
"l00486"></a>00486 <span class=
"keyword">typedef
</span> <a class=
"code" href=
"g_i_l_0513.html" title=
"Function object that returns a grayscale reference of the K-th channel (specified...">kth_channel_deref_fn
<K,const_ref_t
></a> <a class=
"code" href=
"g_i_l_0513.html" title=
"Function object that returns a grayscale reference of the K-th channel (specified...">const_t
</a>;
429 <a name=
"l00487"></a>00487 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> <a class=
"code" href=
"g_i_l_0606.html" title=
"Returns the type of a homogeneous pixel given the channel type and layout.">pixel_value_type
<channel_t,gray_layout_t
>::type
</a> <a class=
"code" href=
"g_i_l_0599.html" title=
"Represents a pixel value (a container of channels). Models: HomogeneousColorBaseValueConcept...">value_type
</a>;
430 <a name=
"l00488"></a>00488 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> <a class=
"code" href=
"g_i_l_0604.html" title=
"Returns the type of a homogeneous pixel reference given the channel type, layout...">pixel_reference_type
<channel_t,gray_layout_t,false,false
>::type
</a> const_reference;
431 <a name=
"l00489"></a>00489 <span class=
"keyword">typedef
</span> SrcP argument_type;
432 <a name=
"l00490"></a>00490 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> mpl::if_c
<is_mutable, ref_t, value_type
>::type reference;
433 <a name=
"l00491"></a>00491 <span class=
"keyword">typedef
</span> reference result_type;
434 <a name=
"l00492"></a>00492
435 <a name=
"l00493"></a>00493 <a class=
"code" href=
"g_i_l_0513.html" title=
"Function object that returns a grayscale reference of the K-th channel (specified...">kth_channel_deref_fn
</a>() {}
436 <a name=
"l00494"></a>00494 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> P
> <a class=
"code" href=
"g_i_l_0513.html" title=
"Function object that returns a grayscale reference of the K-th channel (specified...">kth_channel_deref_fn
</a>(
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0513.html" title=
"Function object that returns a grayscale reference of the K-th channel (specified...">kth_channel_deref_fn
<K,P
></a>&) {}
437 <a name=
"l00495"></a>00495
438 <a name=
"l00496"></a>00496 result_type operator()(argument_type srcP)
<span class=
"keyword"> const
</span>{
439 <a name=
"l00497"></a>00497 <span class=
"keywordflow">return
</span> result_type(at_c
<K
>(srcP));
440 <a name=
"l00498"></a>00498 }
441 <a name=
"l00499"></a>00499 };
442 <a name=
"l00500"></a>00500
443 <a name=
"l00501"></a>00501 <span class=
"keyword">template
</span> <<span class=
"keywordtype">int
</span> K,
<span class=
"keyword">typename
</span> View
> <span class=
"keyword">struct
</span>__kth_channel_view
<K,View,false
> {
444 <a name=
"l00502"></a>00502 <span class=
"keyword">private
</span>:
445 <a name=
"l00503"></a>00503 <span class=
"keyword">typedef
</span> <a class=
"code" href=
"g_i_l_0513.html" title=
"Function object that returns a grayscale reference of the K-th channel (specified...">kth_channel_deref_fn
<K,typename View::reference
></a> deref_t;
446 <a name=
"l00504"></a>00504 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> View::template add_deref
<deref_t
> AD;
447 <a name=
"l00505"></a>00505 <span class=
"keyword">public
</span>:
448 <a name=
"l00506"></a>00506 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> AD::type type;
449 <a name=
"l00507"></a>00507 <span class=
"keyword">static
</span> type make(
<span class=
"keyword">const
</span> View
& src) {
450 <a name=
"l00508"></a>00508 <span class=
"keywordflow">return
</span> AD::make(src, deref_t());
451 <a name=
"l00509"></a>00509 }
452 <a name=
"l00510"></a>00510 };
453 <a name=
"l00511"></a>00511 }
<span class=
"comment">// namespace detail
</span>
454 <a name=
"l00512"></a>00512
455 <a name=
"l00519"></a>00519 <span class=
"keyword">template
</span> <<span class=
"keywordtype">int
</span> K,
<span class=
"keyword">typename
</span> View
>
456 <a name=
"l00520"></a><a class=
"code" href=
"g_i_l_0559.html">00520</a> <span class=
"keyword">struct
</span><a class=
"code" href=
"g_i_l_0559.html" title=
"Given a source image view type View, returns the type of an image view over a given...">kth_channel_view_type
</a> {
457 <a name=
"l00521"></a>00521 <span class=
"keyword">private
</span>:
458 <a name=
"l00522"></a>00522 GIL_CLASS_REQUIRE(View, boost::gil,
<a class=
"code" href=
"g_i_l_0308.html" title=
"GIL&#39;s 2-dimensional view over immutable GIL pixels.">ImageViewConcept
</a>)
459 <a name=
"l00523"></a>00523 <span class=
"keyword">typedef
</span> detail::__kth_channel_view
<K,View,view_is_basic
<View
>::value
> VB;
460 <a name=
"l00524"></a>00524 <span class=
"keyword">public
</span>:
461 <a name=
"l00525"></a>00525 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> VB::type type;
462 <a name=
"l00526"></a>00526 <span class=
"keyword">static
</span> type make(
<span class=
"keyword">const
</span> View
& src) {
<span class=
"keywordflow">return
</span> VB::make(src); }
463 <a name=
"l00527"></a>00527 };
464 <a name=
"l00528"></a>00528
465 <a name=
"l00530"></a>00530 <span class=
"keyword">template
</span> <<span class=
"keywordtype">int
</span> K,
<span class=
"keyword">typename
</span> View
>
466 <a name=
"l00531"></a>00531 <span class=
"keyword">typename
</span> <a class=
"code" href=
"g_i_l_0559.html" title=
"Given a source image view type View, returns the type of an image view over a given...">kth_channel_view_type
<K,View
>::type
</a> kth_channel_view(
<span class=
"keyword">const
</span> View
& src) {
467 <a name=
"l00532"></a>00532 <span class=
"keywordflow">return
</span> <a class=
"code" href=
"g_i_l_0559.html" title=
"Given a source image view type View, returns the type of an image view over a given...">kth_channel_view_type
<K,View
>::make
</a>(src);
468 <a name=
"l00533"></a>00533 }
469 <a name=
"l00534"></a>00534
470 <a name=
"l00535"></a>00535 } }
<span class=
"comment">// namespace boost::gil
</span>
471 <a name=
"l00536"></a>00536
472 <a name=
"l00537"></a>00537 <span class=
"preprocessor">#endif
</span>
474 <hr size=
"1"><address style=
"text-align: right;"><small>Generated on Sat May
2 13:
50:
14 2009 for Generic Image Library by
475 <a href=
"http://www.doxygen.org/index.html">
476 <img src=
"doxygen.png" alt=
"doxygen" align=
"middle" border=
"0"></a> 1.5.6 </small></address>