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- <div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">//</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// Copyright 2005-2007 Adobe Systems Incorporated</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">//</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// Distributed under the Boost Software License, Version 1.0</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// See accompanying file LICENSE_1_0.txt or copy at</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// http://www.boost.org/LICENSE_1_0.txt</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">//</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#ifndef BOOST_GIL_IMAGE_VIEW_HPP</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#define BOOST_GIL_IMAGE_VIEW_HPP</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include <boost/gil/dynamic_step.hpp></span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include <boost/gil/iterator_from_2d.hpp></span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> </div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include <boost/assert.hpp></span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <cstddef></span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <iterator></span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="keyword">namespace </span>boost { <span class="keyword">namespace </span>gil {</div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Loc> <span class="comment">// Models 2D Pixel Locator</span></div><div class="line"><a name="l00053"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1image__view.html"> 53</a></span> <span class="keyword">class </span><a class="code" href="classboost_1_1gil_1_1image__view.html">image_view</a></div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> {</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="comment">// aliases required by ConstRandomAccessNDImageViewConcept</span></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keyword">static</span> <span class="keyword">const</span> std::size_t num_dimensions=2;</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keyword">using</span> value_type = <span class="keyword">typename</span> Loc::value_type;</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keyword">using</span> reference = <span class="keyword">typename</span> Loc::reference; <span class="comment">// result of dereferencing</span></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keyword">using</span> coord_t = <span class="keyword">typename</span> Loc::coord_t; <span class="comment">// 1D difference type (same for all dimensions)</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keyword">using</span> difference_type = coord_t; <span class="comment">// result of operator-(1d_iterator,1d_iterator)</span></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keyword">using</span> point_t = <span class="keyword">typename</span> Loc::point_t;</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keyword">using</span> locator = Loc;</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keyword">using</span> <a class="code" href="classboost_1_1gil_1_1image__view.html">const_t</a> = <a class="code" href="classboost_1_1gil_1_1image__view.html">image_view<typename Loc::const_t></a>; <span class="comment">// same as this type, but over const values</span></div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keyword">template</span> <std::<span class="keywordtype">size_t</span> D> <span class="keyword">struct </span>axis</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  {</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keyword">using</span> coord_t = <span class="keyword">typename</span> Loc::template axis<D>::coord_t; <span class="comment">// difference_type along each dimension</span></div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keyword">using</span> <a class="code" href="classboost_1_1gil_1_1iterator__from__2d.html">iterator</a> = <span class="keyword">typename</span> Loc::template axis<D>::iterator; <span class="comment">// 1D iterator type along each dimension</span></div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  };</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keyword">using</span> <a class="code" href="classboost_1_1gil_1_1iterator__from__2d.html">iterator</a> = <a class="code" href="classboost_1_1gil_1_1iterator__from__2d.html">iterator_from_2d<Loc></a>; <span class="comment">// 1D iterator type for each pixel left-to-right inside top-to-bottom</span></div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keyword">using</span> const_iterator = <span class="keyword">typename</span> <a class="code" href="classboost_1_1gil_1_1iterator__from__2d.html">const_t::iterator</a>; <span class="comment">// may be used to examine, but not to modify values</span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keyword">using</span> const_reference = <span class="keyword">typename</span> const_t::reference; <span class="comment">// behaves as a const reference</span></div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keyword">using</span> pointer = <span class="keyword">typename</span> std::iterator_traits<iterator>::pointer; <span class="comment">// behaves as a pointer to the value type</span></div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keyword">using</span> reverse_iterator = std::reverse_iterator<iterator>;</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keyword">using</span> size_type = std::size_t;</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> </div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="comment">// aliases required by ConstRandomAccess2DImageViewConcept</span></div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keyword">using</span> xy_locator = locator;</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keyword">using</span> x_iterator = <span class="keyword">typename</span> xy_locator::x_iterator; <span class="comment">// pixel iterator along a row</span></div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keyword">using</span> y_iterator = <span class="keyword">typename</span> xy_locator::y_iterator; <span class="comment">// pixel iterator along a column</span></div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keyword">using</span> x_coord_t = <span class="keyword">typename</span> xy_locator::x_coord_t;</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keyword">using</span> y_coord_t = <span class="keyword">typename</span> xy_locator::y_coord_t;</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> </div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Deref></div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keyword">struct </span>add_deref</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  {</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keyword">using</span> type = <a class="code" href="classboost_1_1gil_1_1image__view.html">image_view<typename Loc::template add_deref<Deref>::type</a>>;</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keyword">static</span> type make(<a class="code" href="classboost_1_1gil_1_1image__view.html">image_view<Loc></a> <span class="keyword">const</span>& <a class="code" href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">view</a>, Deref <span class="keyword">const</span>& d)</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  {</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordflow">return</span> type(<a class="code" href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">view</a>.dimensions(), Loc::template add_deref<Deref>::make(<a class="code" href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">view</a>.pixels(), d));</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  }</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  };</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> </div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <a class="code" href="classboost_1_1gil_1_1image__view.html">image_view</a>() : _dimensions(0,0) {}</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <a class="code" href="classboost_1_1gil_1_1image__view.html">image_view</a>(<a class="code" href="classboost_1_1gil_1_1image__view.html">image_view</a> <span class="keyword">const</span>& img_view)</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  : _dimensions(img_view.dimensions()), _pixels(img_view.pixels())</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  {}</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span> </div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> View></div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <a class="code" href="classboost_1_1gil_1_1image__view.html">image_view</a>(View <span class="keyword">const</span>& <a class="code" href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">view</a>) : _dimensions(<a class="code" href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">view</a>.dimensions()), _pixels(<a class="code" href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">view</a>.pixels()) {}</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> </div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> L2></div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <a class="code" href="classboost_1_1gil_1_1image__view.html">image_view</a>(point_t <span class="keyword">const</span>& dims, L2 <span class="keyword">const</span>& loc) : _dimensions(dims), _pixels(loc) {}</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> L2></div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <a class="code" href="classboost_1_1gil_1_1image__view.html">image_view</a>(coord_t width, coord_t height, L2 <span class="keyword">const</span>& loc)</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  : _dimensions(x_coord_t(width), y_coord_t(height)), _pixels(loc)</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  {}</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> </div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> View></div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <a class="code" href="classboost_1_1gil_1_1image__view.html">image_view</a>& operator=(View <span class="keyword">const</span>& <a class="code" href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">view</a>)</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  {</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  _pixels = <a class="code" href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">view</a>.pixels();</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  _dimensions = <a class="code" href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">view</a>.dimensions();</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  }</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span> </div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <a class="code" href="classboost_1_1gil_1_1image__view.html">image_view</a>& operator=(<a class="code" href="classboost_1_1gil_1_1image__view.html">image_view</a> <span class="keyword">const</span>& <a class="code" href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">view</a>)</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  {</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="comment">// TODO: Self-assignment protection?</span></div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  _pixels = <a class="code" href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">view</a>.pixels();</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  _dimensions = <a class="code" href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">view</a>.dimensions();</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  }</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span> </div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> View></div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordtype">bool</span> operator==(View <span class="keyword">const</span> &<a class="code" href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">view</a>)<span class="keyword"> const</span></div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordflow">return</span> pixels() == <a class="code" href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">view</a>.pixels() && dimensions() == <a class="code" href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">view</a>.dimensions();</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  }</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span> </div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> View></div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordtype">bool</span> operator!=(View <span class="keyword">const</span>& <a class="code" href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">view</a>)<span class="keyword"> const</span></div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keywordflow">return</span> !(*<span class="keyword">this</span> == <a class="code" href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">view</a>);</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  }</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span> </div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> L2></div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keyword">friend</span> <span class="keywordtype">void</span> swap(<a class="code" href="classboost_1_1gil_1_1image__view.html">image_view<L2></a> &lhs, <a class="code" href="classboost_1_1gil_1_1image__view.html">image_view<L2></a> &rhs);</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span> </div><div class="line"><a name="l00146"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1image__view.html#a6abdcb0b8cadeb8f39806bd6413a2075"> 146</a></span>  <span class="keywordtype">void</span> <a class="code" href="classboost_1_1gil_1_1image__view.html#a6abdcb0b8cadeb8f39806bd6413a2075">swap</a>(<a class="code" href="classboost_1_1gil_1_1image__view.html">image_view<Loc></a>& other)</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  {</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keyword">using</span> <a class="code" href="group___packed_channel_reference_model.html#ga70de3c85964650c16afcc42c02bd5df9">boost::gil::swap</a>;</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  swap(*<span class="keyword">this</span>, other);</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  }</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span> </div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keyword">auto</span> dimensions() const -> <a class="code" href="classboost_1_1gil_1_1point.html">point_t</a> const&</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  {</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordflow">return</span> _dimensions;</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  }</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span> </div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keyword">auto</span> pixels() const -> locator const&</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  {</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordflow">return</span> _pixels;</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  }</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span> </div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keyword">auto</span> width() const -> x_coord_t</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  {</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordflow">return</span> dimensions().x;</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  }</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span> </div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keyword">auto</span> height() const -> y_coord_t</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  {</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keywordflow">return</span> dimensions().y;</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  }</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span> </div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keyword">auto</span> num_channels() const -> std::<span class="keywordtype">size_t</span></div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  {</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keywordflow">return</span> gil::num_channels<value_type>::value;</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  }</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span> </div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="keywordtype">bool</span> is_1d_traversable()<span class="keyword"> const</span></div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keywordflow">return</span> _pixels.is_1d_traversable(width());</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  }</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span> </div><div class="line"><a name="l00186"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1image__view.html#a644718bb2fb240de962dc3c9a1fdf0dc"> 186</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classboost_1_1gil_1_1image__view.html#a644718bb2fb240de962dc3c9a1fdf0dc">empty</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keywordflow">return</span> !(width() > 0 && height() > 0);</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  }</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span> </div><div class="line"><a name="l00195"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1image__view.html#a34d0cb181d67db75fc76cf2c86714c63"> 195</a></span>  <span class="keyword">auto</span> <a class="code" href="classboost_1_1gil_1_1image__view.html#a34d0cb181d67db75fc76cf2c86714c63">front</a>() const -> reference</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  {</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  BOOST_ASSERT(!<a class="code" href="classboost_1_1gil_1_1image__view.html#a644718bb2fb240de962dc3c9a1fdf0dc">empty</a>());</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="keywordflow">return</span> *begin();</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  }</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span> </div><div class="line"><a name="l00205"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1image__view.html#a2250401399336343c9b61c4a115bb6f7"> 205</a></span>  <span class="keyword">auto</span> <a class="code" href="classboost_1_1gil_1_1image__view.html#a2250401399336343c9b61c4a115bb6f7">back</a>() const -> reference</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  {</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  BOOST_ASSERT(!<a class="code" href="classboost_1_1gil_1_1image__view.html#a644718bb2fb240de962dc3c9a1fdf0dc">empty</a>());</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="keywordflow">return</span> *rbegin();</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  }</div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span> </div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="comment">//\{@</span></div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span> <span class="comment"></span> <span class="keyword">auto</span> <a class="code" href="structboost_1_1gil_1_1size.html">size</a>() const -> size_type</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  {</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keywordflow">return</span> width() * height();</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  }</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span> </div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keyword">auto</span> begin() const -> iterator</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  {</div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keywordflow">return</span> iterator(_pixels, _dimensions.x);</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  }</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span> </div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keyword">auto</span> end() const -> iterator</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  {</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="comment">// potential performance problem!</span></div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="keywordflow">return</span> begin() + static_cast<difference_type>(size());</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  }</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span> </div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="keyword">auto</span> rbegin() const -> reverse_iterator</div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  {</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="keywordflow">return</span> reverse_iterator(end());</div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  }</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span> </div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="keyword">auto</span> rend() const -> reverse_iterator</div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  {</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="keywordflow">return</span> reverse_iterator(begin());</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  }</div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span> </div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keyword">auto</span> operator[](difference_type i) <span class="keyword">const</span> -> reference</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  {</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  BOOST_ASSERT(i < static_cast<difference_type>(size()));</div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="keywordflow">return</span> begin()[i]; <span class="comment">// potential performance problem!</span></div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  }</div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span> </div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="keyword">auto</span> at(difference_type i) <span class="keyword">const</span> ->iterator</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  {</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  BOOST_ASSERT(i < size());</div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="keywordflow">return</span> begin() + i;</div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  }</div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span> </div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="keyword">auto</span> at(point_t <span class="keyword">const</span>& p) <span class="keyword">const</span> -> iterator</div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  {</div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  BOOST_ASSERT(0 <= p.x && p.x < width());</div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  BOOST_ASSERT(0 <= p.y && p.y < height());</div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="keywordflow">return</span> begin() + p.y * width() + p.x;</div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  }</div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span> </div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  <span class="keyword">auto</span> at(x_coord_t x, y_coord_t y) <span class="keyword">const</span> -> iterator</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  {</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  BOOST_ASSERT(0 <= x && x < width());</div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  BOOST_ASSERT(0 <= y && y < height());</div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="keywordflow">return</span> begin() + y * width() + x;</div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  }</div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <span class="comment">//\}@</span></div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span> </div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  <span class="comment">//\{@</span></div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span> <span class="comment"></span> <span class="keyword">auto</span> operator()(point_t <span class="keyword">const</span>& p) <span class="keyword">const</span> -> reference</div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  {</div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  BOOST_ASSERT(0 <= p.x && p.x < width());</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  BOOST_ASSERT(0 <= p.y && p.y < height());</div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <span class="keywordflow">return</span> _pixels(p.x, p.y);</div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  }</div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span> </div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <span class="keyword">auto</span> operator()(x_coord_t x, y_coord_t y) <span class="keyword">const</span> -> reference</div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  {</div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  BOOST_ASSERT(0 <= x && x < width());</div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  BOOST_ASSERT(0 <= y && y < height());</div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <span class="keywordflow">return</span> _pixels(x, y);</div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  }</div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span> </div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="keyword">template</span> <std::<span class="keywordtype">size_t</span> D></div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="keyword">auto</span> axis_iterator(point_t <span class="keyword">const</span>& p) <span class="keyword">const</span> -> <span class="keyword">typename</span> axis<D>::iterator</div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  {</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="comment">// allow request for iterators from inclusive range of [begin, end]</span></div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  BOOST_ASSERT(0 <= p.x && p.x <= width());</div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  BOOST_ASSERT(0 <= p.y && p.y <= height());</div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  <span class="keywordflow">return</span> _pixels.template axis_iterator<D>(p);</div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  }</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span> </div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="keyword">auto</span> xy_at(x_coord_t x, y_coord_t y) <span class="keyword">const</span> -> xy_locator</div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  {</div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  <span class="comment">// TODO: Are relative locations of neighbors with negative offsets valid? Sampling?</span></div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  BOOST_ASSERT(x < width());</div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  BOOST_ASSERT(y < height());</div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  <span class="keywordflow">return</span> _pixels + point_t(x, y);</div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  }</div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span> </div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  <span class="keyword">auto</span> xy_at(point_t <span class="keyword">const</span>& p) <span class="keyword">const</span> -> locator</div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  {</div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  <span class="comment">// TODO: Are relative locations of neighbors with negative offsets valid? Sampling?</span></div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  BOOST_ASSERT(p.x < width());</div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  BOOST_ASSERT(p.y < height());</div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  <span class="keywordflow">return</span> _pixels + p;</div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  }</div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <span class="comment">//\}@</span></div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span> </div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="comment">//\{@</span></div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span> <span class="comment"></span> <span class="keyword">auto</span> x_at(x_coord_t x, y_coord_t y) <span class="keyword">const</span> -> x_iterator</div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  {</div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  BOOST_ASSERT(0 <= x && x <= width()); <span class="comment">// allow request for [begin, end] inclusive</span></div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  BOOST_ASSERT(0 <= y && y < height());</div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="keywordflow">return</span> _pixels.x_at(x, y);</div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  }</div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span> </div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="keyword">auto</span> x_at(point_t <span class="keyword">const</span>& p) <span class="keyword">const</span> -> x_iterator</div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  {</div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  BOOST_ASSERT(0 <= p.x && p.x <= width()); <span class="comment">// allow request for [begin, end] inclusive</span></div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  BOOST_ASSERT(0 <= p.y && p.y < height());</div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  <span class="keywordflow">return</span> _pixels.x_at(p);</div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  }</div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span> </div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="keyword">auto</span> row_begin(y_coord_t y) <span class="keyword">const</span> -> x_iterator</div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  {</div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  BOOST_ASSERT(0 <= y && y < height());</div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="keywordflow">return</span> x_at(0, y);</div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  }</div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span> </div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="keyword">auto</span> row_end(y_coord_t y) <span class="keyword">const</span> -> x_iterator</div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  {</div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  BOOST_ASSERT(0 <= y && y < height());</div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <span class="keywordflow">return</span> x_at(width(), y);</div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  }</div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  <span class="comment">//\}@</span></div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span> </div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="comment">//\{@</span></div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span> <span class="comment"></span> <span class="keyword">auto</span> y_at(x_coord_t x, y_coord_t y) <span class="keyword">const</span> -> y_iterator</div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  {</div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  BOOST_ASSERT(0 <= x && x < width());</div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  BOOST_ASSERT(0 <= y && y <= height()); <span class="comment">// allow request for [begin, end] inclusive</span></div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  <span class="keywordflow">return</span> xy_at(x, y).y();</div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  }</div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span> </div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="keyword">auto</span> y_at(point_t <span class="keyword">const</span>& p) <span class="keyword">const</span> -> y_iterator</div><div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  {</div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  BOOST_ASSERT(0 <= p.x && p.x < width());</div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  BOOST_ASSERT(0 <= p.y && p.y <= height()); <span class="comment">// allow request for [begin, end] inclusive</span></div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="keywordflow">return</span> xy_at(p).y();</div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  }</div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span> </div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  <span class="keyword">auto</span> col_begin(x_coord_t x) <span class="keyword">const</span> -> y_iterator</div><div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  {</div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  BOOST_ASSERT(0 <= x && x < width());</div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <span class="keywordflow">return</span> y_at(x, 0);</div><div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  }</div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span> </div><div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="keyword">auto</span> col_end(x_coord_t x) <span class="keyword">const</span> -> y_iterator</div><div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  {</div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  BOOST_ASSERT(0 <= x && x < width());</div><div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  <span class="keywordflow">return</span> y_at(x, height());</div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  }</div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  <span class="comment">//\}@</span></div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span> </div><div class="line"><a name="l00366"></a><span class="lineno"> 366</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> L2></div><div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="keyword">friend</span> <span class="keyword">class </span>image_view;</div><div class="line"><a name="l00369"></a><span class="lineno"> 369</span> </div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  point_t _dimensions;</div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  xy_locator _pixels;</div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span> };</div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span> </div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span> <span class="keyword">template</span> <<span class="keyword">typename</span> L2></div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="group___packed_channel_reference_model.html#ga70de3c85964650c16afcc42c02bd5df9">swap</a>(image_view<L2>& x, image_view<L2>& y) {</div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  <span class="keyword">using</span> <a class="code" href="group___packed_channel_reference_model.html#ga70de3c85964650c16afcc42c02bd5df9">std::swap</a>;</div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <a class="code" href="group___packed_channel_reference_model.html#ga70de3c85964650c16afcc42c02bd5df9">swap</a>(x._dimensions,y._dimensions);</div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  <a class="code" href="group___packed_channel_reference_model.html#ga70de3c85964650c16afcc42c02bd5df9">swap</a>(x._pixels, y._pixels); <span class="comment">// TODO: Extend further</span></div><div class="line"><a name="l00379"></a><span class="lineno"> 379</span> }</div><div class="line"><a name="l00380"></a><span class="lineno"> 380</span> </div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span> <span class="comment">// PixelBasedConcept</span></div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span> <span class="comment"></span></div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span> <span class="keyword">template</span> <<span class="keyword">typename</span> L></div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span> <span class="keyword">struct </span>channel_type<image_view<L> > : <span class="keyword">public</span> channel_type<L> {};</div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span> </div><div class="line"><a name="l00388"></a><span class="lineno"> 388</span> <span class="keyword">template</span> <<span class="keyword">typename</span> L></div><div class="line"><a name="l00389"></a><span class="lineno"> 389</span> <span class="keyword">struct </span>color_space_type<image_view<L> > : <span class="keyword">public</span> color_space_type<L> {};</div><div class="line"><a name="l00390"></a><span class="lineno"> 390</span> </div><div class="line"><a name="l00391"></a><span class="lineno"> 391</span> <span class="keyword">template</span> <<span class="keyword">typename</span> L></div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span> <span class="keyword">struct </span>channel_mapping_type<image_view<L> > : <span class="keyword">public</span> channel_mapping_type<L> {};</div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span> </div><div class="line"><a name="l00394"></a><span class="lineno"> 394</span> <span class="keyword">template</span> <<span class="keyword">typename</span> L></div><div class="line"><a name="l00395"></a><span class="lineno"> 395</span> <span class="keyword">struct </span>is_planar<image_view<L> > : <span class="keyword">public</span> is_planar<L> {};</div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span> </div><div class="line"><a name="l00398"></a><span class="lineno"> 398</span> <span class="comment">// HasDynamicXStepTypeConcept</span></div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span> <span class="comment"></span></div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span> <span class="keyword">template</span> <<span class="keyword">typename</span> L></div><div class="line"><a name="l00402"></a><span class="lineno"> 402</span> <span class="keyword">struct </span>dynamic_x_step_type<image_view<L>></div><div class="line"><a name="l00403"></a><span class="lineno"> 403</span> {</div><div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  <span class="keyword">using</span> type = image_view<typename gil::dynamic_x_step_type<L>::type>;</div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span> };</div><div class="line"><a name="l00406"></a><span class="lineno"> 406</span> </div><div class="line"><a name="l00408"></a><span class="lineno"> 408</span> <span class="comment">// HasDynamicYStepTypeConcept</span></div><div class="line"><a name="l00410"></a><span class="lineno"> 410</span> <span class="comment"></span></div><div class="line"><a name="l00411"></a><span class="lineno"> 411</span> <span class="keyword">template</span> <<span class="keyword">typename</span> L></div><div class="line"><a name="l00412"></a><span class="lineno"> 412</span> <span class="keyword">struct </span>dynamic_y_step_type<image_view<L>></div><div class="line"><a name="l00413"></a><span class="lineno"> 413</span> {</div><div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  <span class="keyword">using</span> type = image_view<typename gil::dynamic_y_step_type<L>::type>;</div><div class="line"><a name="l00415"></a><span class="lineno"> 415</span> };</div><div class="line"><a name="l00416"></a><span class="lineno"> 416</span> </div><div class="line"><a name="l00418"></a><span class="lineno"> 418</span> <span class="comment">// HasTransposedTypeConcept</span></div><div class="line"><a name="l00420"></a><span class="lineno"> 420</span> <span class="comment"></span></div><div class="line"><a name="l00421"></a><span class="lineno"> 421</span> <span class="keyword">template</span> <<span class="keyword">typename</span> L></div><div class="line"><a name="l00422"></a><span class="lineno"> 422</span> <span class="keyword">struct </span>transposed_type<image_view<L>></div><div class="line"><a name="l00423"></a><span class="lineno"> 423</span> {</div><div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  <span class="keyword">using</span> type = image_view<typename transposed_type<L>::type>;</div><div class="line"><a name="l00425"></a><span class="lineno"> 425</span> };</div><div class="line"><a name="l00426"></a><span class="lineno"> 426</span> </div><div class="line"><a name="l00427"></a><span class="lineno"> 427</span> }} <span class="comment">// namespace boost::gil</span></div><div class="line"><a name="l00428"></a><span class="lineno"> 428</span> </div><div class="line"><a name="l00429"></a><span class="lineno"> 429</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="classboost_1_1gil_1_1image__view_html"><div class="ttname"><a href="classboost_1_1gil_1_1image__view.html">boost::gil::image_view</a></div><div class="ttdoc">A lightweight object that interprets memory as a 2D array of pixels. Models ImageViewConcept,...</div><div class="ttdef"><b>Definition:</b> image_view.hpp:53</div></div>
- <div class="ttc" id="classboost_1_1gil_1_1iterator__from__2d_html"><div class="ttname"><a href="classboost_1_1gil_1_1iterator__from__2d.html">boost::gil::iterator_from_2d</a></div><div class="ttdoc">Provides 1D random-access navigation to the pixels of the image. Models: PixelIteratorConcept,...</div><div class="ttdef"><b>Definition:</b> iterator_from_2d.hpp:42</div></div>
- <div class="ttc" id="classboost_1_1gil_1_1image__view_html_a2250401399336343c9b61c4a115bb6f7"><div class="ttname"><a href="classboost_1_1gil_1_1image__view.html#a2250401399336343c9b61c4a115bb6f7">boost::gil::image_view::back</a></div><div class="ttdeci">auto back() const -> reference</div><div class="ttdoc">Returns a reference to the last element in raster order.</div><div class="ttdef"><b>Definition:</b> image_view.hpp:205</div></div>
- <div class="ttc" id="classboost_1_1gil_1_1image__view_html_a6abdcb0b8cadeb8f39806bd6413a2075"><div class="ttname"><a href="classboost_1_1gil_1_1image__view.html#a6abdcb0b8cadeb8f39806bd6413a2075">boost::gil::image_view::swap</a></div><div class="ttdeci">void swap(image_view< Loc > &other)</div><div class="ttdoc">Exchanges the elements of the current view with those of other in constant time.</div><div class="ttdef"><b>Definition:</b> image_view.hpp:146</div></div>
- <div class="ttc" id="group___packed_channel_reference_model_html_ga70de3c85964650c16afcc42c02bd5df9"><div class="ttname"><a href="group___packed_channel_reference_model.html#ga70de3c85964650c16afcc42c02bd5df9">std::swap</a></div><div class="ttdeci">void swap(boost::gil::packed_channel_reference< BF, FB, NB, M > const x, R &y)</div><div class="ttdoc">swap for packed_channel_reference</div><div class="ttdef"><b>Definition:</b> channel.hpp:529</div></div>
- <div class="ttc" id="classboost_1_1gil_1_1image__view_html_a644718bb2fb240de962dc3c9a1fdf0dc"><div class="ttname"><a href="classboost_1_1gil_1_1image__view.html#a644718bb2fb240de962dc3c9a1fdf0dc">boost::gil::image_view::empty</a></div><div class="ttdeci">bool empty() const</div><div class="ttdoc">Returns true if the view has no elements, false otherwise.</div><div class="ttdef"><b>Definition:</b> image_view.hpp:186</div></div>
- <div class="ttc" id="group___image_model_html_ga633557dbbff2d21c784b73412b47bb38"><div class="ttname"><a href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">boost::gil::view</a></div><div class="ttdeci">const image< Pixel, IsPlanar, Alloc >::view_t & view(image< Pixel, IsPlanar, Alloc > &img)</div><div class="ttdoc">Returns the non-constant-pixel view of an image.</div><div class="ttdef"><b>Definition:</b> image.hpp:443</div></div>
- <div class="ttc" id="structboost_1_1gil_1_1size_html"><div class="ttname"><a href="structboost_1_1gil_1_1size.html">boost::gil::size</a></div><div class="ttdoc">Returns an integral constant type specifying the number of elements in a color base.</div><div class="ttdef"><b>Definition:</b> color_base_algorithm.hpp:42</div></div>
- <div class="ttc" id="classboost_1_1gil_1_1point_html"><div class="ttname"><a href="classboost_1_1gil_1_1point.html">boost::gil::point< std::ptrdiff_t ></a></div></div>
- <div class="ttc" id="classboost_1_1gil_1_1image__view_html_a34d0cb181d67db75fc76cf2c86714c63"><div class="ttname"><a href="classboost_1_1gil_1_1image__view.html#a34d0cb181d67db75fc76cf2c86714c63">boost::gil::image_view::front</a></div><div class="ttdeci">auto front() const -> reference</div><div class="ttdoc">Returns a reference to the first element in raster order.</div><div class="ttdef"><b>Definition:</b> image_view.hpp:195</div></div>
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