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| <h1>color_convert.hpp</h1><a href="g_i_l_0071.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span> |
| <a name="l00002"></a>00002 <span class="comment"> Copyright 2005-2007 Adobe Systems Incorporated</span> |
| <a name="l00003"></a>00003 <span class="comment"> </span> |
| <a name="l00004"></a>00004 <span class="comment"> Use, modification and distribution are subject to the Boost Software License,</span> |
| <a name="l00005"></a>00005 <span class="comment"> Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at</span> |
| <a name="l00006"></a>00006 <span class="comment"> http://www.boost.org/LICENSE_1_0.txt).</span> |
| <a name="l00007"></a>00007 <span class="comment"></span> |
| <a name="l00008"></a>00008 <span class="comment"> See http://opensource.adobe.com/gil for most recent version including documentation.</span> |
| <a name="l00009"></a>00009 <span class="comment">*/</span> |
| <a name="l00010"></a>00010 <span class="comment">/*************************************************************************************************/</span> |
| <a name="l00011"></a>00011 |
| <a name="l00012"></a>00012 <span class="preprocessor">#ifndef GIL_COLOR_CONVERT_HPP</span> |
| <a name="l00013"></a>00013 <span class="preprocessor"></span><span class="preprocessor">#define GIL_COLOR_CONVERT_HPP</span> |
| <a name="l00014"></a>00014 <span class="preprocessor"></span> |
| <a name="l00026"></a>00026 |
| <a name="l00027"></a>00027 <span class="preprocessor">#include <functional></span> |
| <a name="l00028"></a>00028 <span class="preprocessor">#include "<a class="code" href="g_i_l_0094.html" title="GIL configuration file.">gil_config.hpp</a>"</span> |
| <a name="l00029"></a>00029 <span class="preprocessor">#include "<a class="code" href="g_i_l_0016.html" title="Channel algorithms.">channel_algorithm.hpp</a>"</span> |
| <a name="l00030"></a>00030 <span class="preprocessor">#include "<a class="code" href="pixel_8hpp.html" title="pixel class and related utilities">pixel.hpp</a>"</span> |
| <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> |
| <a name="l00032"></a>00032 <span class="preprocessor">#include "<a class="code" href="rgb_8hpp.html" title="Support for RGB color space and variants.">rgb.hpp</a>"</span> |
| <a name="l00033"></a>00033 <span class="preprocessor">#include "<a class="code" href="rgba_8hpp.html" title="Support for RGBA color space and variants.">rgba.hpp</a>"</span> |
| <a name="l00034"></a>00034 <span class="preprocessor">#include "<a class="code" href="cmyk_8hpp.html" title="Support for CMYK color space and variants.">cmyk.hpp</a>"</span> |
| <a name="l00035"></a>00035 <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> |
| <a name="l00036"></a>00036 <span class="preprocessor">#include "<a class="code" href="utilities_8hpp.html" title="Various utilities not specific to the image library. Some are non-standard STL extensions...">utilities.hpp</a>"</span> |
| <a name="l00037"></a>00037 <span class="preprocessor">#include "<a class="code" href="g_i_l_0069.html" title="pixel related algorithms">color_base_algorithm.hpp</a>"</span> |
| <a name="l00038"></a>00038 |
| <a name="l00039"></a>00039 <span class="keyword">namespace </span>boost { <span class="keyword">namespace </span>gil { |
| <a name="l00040"></a>00040 |
| <a name="l00041"></a>00041 <span class="comment">// Forward-declare</span> |
| <a name="l00042"></a>00042 <span class="keyword">template</span> <<span class="keyword">typename</span> P> <span class="keyword">struct </span>channel_type; |
| <a name="l00043"></a>00043 |
| <a name="l00049"></a>00049 |
| <a name="l00052"></a>00052 <span class="keyword">template</span> <<span class="keyword">typename</span> C1, <span class="keyword">typename</span> C2> |
| <a name="l00053"></a><a class="code" href="g_i_l_0453.html">00053</a> <span class="keyword">struct </span><a class="code" href="g_i_l_0453.html" title="Color Convertion function object. To be specialized for every src/dst color space...">default_color_converter_impl</a> {}; |
| <a name="l00054"></a>00054 |
| <a name="l00057"></a>00057 <span class="keyword">template</span> <<span class="keyword">typename</span> C> |
| <a name="l00058"></a><a class="code" href="g_i_l_0457.html">00058</a> <span class="keyword">struct </span><a class="code" href="g_i_l_0453.html" title="Color Convertion function object. To be specialized for every src/dst color space...">default_color_converter_impl</a><C,C> { |
| <a name="l00059"></a>00059 <span class="keyword">template</span> <<span class="keyword">typename</span> P1, <span class="keyword">typename</span> P2> |
| <a name="l00060"></a>00060 <span class="keywordtype">void</span> operator()(<span class="keyword">const</span> P1& src, P2& dst)<span class="keyword"> const </span>{ |
| <a name="l00061"></a>00061 static_for_each(src,dst,<a class="code" href="g_i_l_0450.html" title="Same as channel_converter, except it takes the destination channel by reference,...">default_channel_converter</a>()); |
| <a name="l00062"></a>00062 } |
| <a name="l00063"></a>00063 }; |
| <a name="l00064"></a>00064 |
| <a name="l00065"></a>00065 <span class="keyword">namespace </span>detail { |
| <a name="l00066"></a>00066 |
| <a name="l00068"></a>00068 |
| <a name="l00069"></a>00069 <span class="comment">// The default implementation of to_luminance uses float0..1 as the intermediate channel type</span> |
| <a name="l00070"></a>00070 <span class="keyword">template</span> <<span class="keyword">typename</span> RedChannel, <span class="keyword">typename</span> GreenChannel, <span class="keyword">typename</span> BlueChannel, <span class="keyword">typename</span> GrayChannelValue> |
| <a name="l00071"></a><a class="code" href="g_i_l_0519.html">00071</a> <span class="keyword">struct </span><a class="code" href="g_i_l_0519.html" title="red * .3 + green * .59 + blue * .11 + .5">rgb_to_luminance_fn</a> { |
| <a name="l00072"></a>00072 GrayChannelValue operator()(<span class="keyword">const</span> RedChannel& red, <span class="keyword">const</span> GreenChannel& green, <span class="keyword">const</span> BlueChannel& blue)<span class="keyword"> const </span>{ |
| <a name="l00073"></a>00073 <span class="keywordflow">return</span> channel_convert<GrayChannelValue>( <a class="code" href="g_i_l_0620.html" title="A channel adaptor that modifies the range of the source channel. Models: ChannelValueConcept...">bits32f</a>( |
| <a name="l00074"></a>00074 channel_convert<bits32f>(red )*0.30f + |
| <a name="l00075"></a>00075 channel_convert<bits32f>(green)*0.59f + |
| <a name="l00076"></a>00076 channel_convert<bits32f>(blue )*0.11f) ); |
| <a name="l00077"></a>00077 } |
| <a name="l00078"></a>00078 }; |
| <a name="l00079"></a>00079 |
| <a name="l00080"></a>00080 <span class="comment">// performance specialization for unsigned char</span> |
| <a name="l00081"></a>00081 <span class="keyword">template</span> <<span class="keyword">typename</span> GrayChannelValue> |
| <a name="l00082"></a>00082 <span class="keyword">struct </span><a class="code" href="g_i_l_0519.html" title="red * .3 + green * .59 + blue * .11 + .5">rgb_to_luminance_fn</a><uint8_t,uint8_t,uint8_t, GrayChannelValue> { |
| <a name="l00083"></a>00083 GrayChannelValue operator()(uint8_t red, uint8_t green, uint8_t blue)<span class="keyword"> const </span>{ |
| <a name="l00084"></a>00084 <span class="keywordflow">return</span> channel_convert<GrayChannelValue>(uint8_t( |
| <a name="l00085"></a>00085 ((uint32_t(red )*4915 + uint32_t(green)*9667 + uint32_t(blue )*1802) + 8192) >> 14)); |
| <a name="l00086"></a>00086 } |
| <a name="l00087"></a>00087 }; |
| <a name="l00088"></a>00088 |
| <a name="l00089"></a>00089 <span class="keyword">template</span> <<span class="keyword">typename</span> GrayChannel, <span class="keyword">typename</span> RedChannel, <span class="keyword">typename</span> GreenChannel, <span class="keyword">typename</span> BlueChannel> |
| <a name="l00090"></a>00090 <span class="keyword">typename</span> channel_traits<GrayChannel>::value_type rgb_to_luminance(<span class="keyword">const</span> RedChannel& red, <span class="keyword">const</span> GreenChannel& green, <span class="keyword">const</span> BlueChannel& blue) { |
| <a name="l00091"></a>00091 <span class="keywordflow">return</span> rgb_to_luminance_fn<RedChannel,GreenChannel,BlueChannel, |
| <a name="l00092"></a>00092 <span class="keyword">typename</span> channel_traits<GrayChannel>::value_type>()(red,green,blue); |
| <a name="l00093"></a>00093 } |
| <a name="l00094"></a>00094 |
| <a name="l00095"></a>00095 } <span class="comment">// namespace detail</span> |
| <a name="l00096"></a>00096 |
| <a name="l00099"></a>00099 <span class="keyword">template</span> <> |
| <a name="l00100"></a><a class="code" href="g_i_l_0465.html">00100</a> <span class="keyword">struct </span><a class="code" href="g_i_l_0453.html" title="Color Convertion function object. To be specialized for every src/dst color space...">default_color_converter_impl</a><gray_t,rgb_t> { |
| <a name="l00101"></a>00101 <span class="keyword">template</span> <<span class="keyword">typename</span> P1, <span class="keyword">typename</span> P2> |
| <a name="l00102"></a>00102 <span class="keywordtype">void</span> operator()(<span class="keyword">const</span> P1& src, P2& dst)<span class="keyword"> const </span>{ |
| <a name="l00103"></a>00103 <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0618.html" title="Red.">red_t</a>()) = |
| <a name="l00104"></a>00104 channel_convert<typename color_element_type<P2, red_t >::type>(<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(src,<a class="code" href="g_i_l_0536.html" title="Gray.">gray_color_t</a>())); |
| <a name="l00105"></a>00105 <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0537.html" title="Green.">green_t</a>())= |
| <a name="l00106"></a>00106 channel_convert<typename color_element_type<P2, green_t>::type>(<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(src,<a class="code" href="g_i_l_0536.html" title="Gray.">gray_color_t</a>())); |
| <a name="l00107"></a>00107 <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0405.html" title="Blue.">blue_t</a>()) = |
| <a name="l00108"></a>00108 channel_convert<typename color_element_type<P2, blue_t >::type>(<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(src,<a class="code" href="g_i_l_0536.html" title="Gray.">gray_color_t</a>())); |
| <a name="l00109"></a>00109 } |
| <a name="l00110"></a>00110 }; |
| <a name="l00111"></a>00111 |
| <a name="l00114"></a>00114 <span class="keyword">template</span> <> |
| <a name="l00115"></a><a class="code" href="g_i_l_0463.html">00115</a> <span class="keyword">struct </span><a class="code" href="g_i_l_0453.html" title="Color Convertion function object. To be specialized for every src/dst color space...">default_color_converter_impl</a><gray_t,cmyk_t> { |
| <a name="l00116"></a>00116 <span class="keyword">template</span> <<span class="keyword">typename</span> P1, <span class="keyword">typename</span> P2> |
| <a name="l00117"></a>00117 <span class="keywordtype">void</span> operator()(<span class="keyword">const</span> P1& src, P2& dst)<span class="keyword"> const </span>{ |
| <a name="l00118"></a>00118 <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0448.html" title="Cyan.">cyan_t</a>())= |
| <a name="l00119"></a>00119 <a class="code" href="g_i_l_0429.html" title="Traits for channels. Contains the following members:.">channel_traits<typename color_element_type<P2, cyan_t >::type</a>>::min_value(); |
| <a name="l00120"></a>00120 <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0574.html" title="Magenta.">magenta_t</a>())= |
| <a name="l00121"></a>00121 <a class="code" href="g_i_l_0429.html" title="Traits for channels. Contains the following members:.">channel_traits<typename color_element_type<P2, magenta_t>::type</a>>::min_value(); |
| <a name="l00122"></a>00122 <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0637.html" title="Yellow.">yellow_t</a>())= |
| <a name="l00123"></a>00123 <a class="code" href="g_i_l_0429.html" title="Traits for channels. Contains the following members:.">channel_traits<typename color_element_type<P2, yellow_t >::type</a>>::min_value(); |
| <a name="l00124"></a>00124 <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0404.html" title="Black.">black_t</a>())= |
| <a name="l00125"></a>00125 channel_convert<typename color_element_type<P2, black_t >::type>(<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(src,<a class="code" href="g_i_l_0536.html" title="Gray.">gray_color_t</a>())); |
| <a name="l00126"></a>00126 } |
| <a name="l00127"></a>00127 }; |
| <a name="l00128"></a>00128 |
| <a name="l00131"></a>00131 <span class="keyword">template</span> <> |
| <a name="l00132"></a><a class="code" href="g_i_l_0469.html">00132</a> <span class="keyword">struct </span><a class="code" href="g_i_l_0453.html" title="Color Convertion function object. To be specialized for every src/dst color space...">default_color_converter_impl</a><rgb_t,gray_t> { |
| <a name="l00133"></a>00133 <span class="keyword">template</span> <<span class="keyword">typename</span> P1, <span class="keyword">typename</span> P2> |
| <a name="l00134"></a>00134 <span class="keywordtype">void</span> operator()(<span class="keyword">const</span> P1& src, P2& dst)<span class="keyword"> const </span>{ |
| <a name="l00135"></a>00135 <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0536.html" title="Gray.">gray_color_t</a>()) = |
| <a name="l00136"></a>00136 detail::rgb_to_luminance<typename color_element_type<P2,gray_color_t>::type>( |
| <a name="l00137"></a>00137 <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(src,<a class="code" href="g_i_l_0618.html" title="Red.">red_t</a>()), <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(src,<a class="code" href="g_i_l_0537.html" title="Green.">green_t</a>()), <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(src,<a class="code" href="g_i_l_0405.html" title="Blue.">blue_t</a>()) |
| <a name="l00138"></a>00138 ); |
| <a name="l00139"></a>00139 } |
| <a name="l00140"></a>00140 }; |
| <a name="l00141"></a>00141 |
| <a name="l00142"></a>00142 |
| <a name="l00150"></a>00150 <span class="keyword">template</span> <> |
| <a name="l00151"></a><a class="code" href="g_i_l_0467.html">00151</a> <span class="keyword">struct </span><a class="code" href="g_i_l_0453.html" title="Color Convertion function object. To be specialized for every src/dst color space...">default_color_converter_impl</a><rgb_t,cmyk_t> { |
| <a name="l00152"></a>00152 <span class="keyword">template</span> <<span class="keyword">typename</span> P1, <span class="keyword">typename</span> P2> |
| <a name="l00153"></a>00153 <span class="keywordtype">void</span> operator()(<span class="keyword">const</span> P1& src, P2& dst)<span class="keyword"> const </span>{ |
| <a name="l00154"></a>00154 <span class="keyword">typedef</span> <span class="keyword">typename</span> channel_type<P2>::type T2; |
| <a name="l00155"></a>00155 <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0448.html" title="Cyan.">cyan_t</a>()) = <a class="code" href="g_i_l_0101.html#ge2e0267865f89610ef26148874a04bb5" title="Default implementation. Provide overloads for performance.">channel_invert</a>(channel_convert<T2>(<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(src,<a class="code" href="g_i_l_0618.html" title="Red.">red_t</a>()))); <span class="comment">// c = 1 - r</span> |
| <a name="l00156"></a>00156 <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0574.html" title="Magenta.">magenta_t</a>()) = <a class="code" href="g_i_l_0101.html#ge2e0267865f89610ef26148874a04bb5" title="Default implementation. Provide overloads for performance.">channel_invert</a>(channel_convert<T2>(<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(src,<a class="code" href="g_i_l_0537.html" title="Green.">green_t</a>()))); <span class="comment">// m = 1 - g</span> |
| <a name="l00157"></a>00157 <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0637.html" title="Yellow.">yellow_t</a>()) = <a class="code" href="g_i_l_0101.html#ge2e0267865f89610ef26148874a04bb5" title="Default implementation. Provide overloads for performance.">channel_invert</a>(channel_convert<T2>(<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(src,<a class="code" href="g_i_l_0405.html" title="Blue.">blue_t</a>()))); <span class="comment">// y = 1 - b</span> |
| <a name="l00158"></a>00158 <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0404.html" title="Black.">black_t</a>()) = (std::min)(<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0448.html" title="Cyan.">cyan_t</a>()), |
| <a name="l00159"></a>00159 (std::min)(<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0574.html" title="Magenta.">magenta_t</a>()), |
| <a name="l00160"></a>00160 <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0637.html" title="Yellow.">yellow_t</a>()))); <span class="comment">// k = minimum(c, m, y)</span> |
| <a name="l00161"></a>00161 T2 x = <a class="code" href="g_i_l_0429.html" title="Traits for channels. Contains the following members:.">channel_traits<T2>::max_value</a>()-<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0404.html" title="Black.">black_t</a>()); <span class="comment">// x = 1 - k</span> |
| <a name="l00162"></a>00162 <span class="keywordflow">if</span> (x>0.0001f) { |
| <a name="l00163"></a>00163 <span class="keywordtype">float</span> x1 = <a class="code" href="g_i_l_0429.html" title="Traits for channels. Contains the following members:.">channel_traits<T2>::max_value</a>()/float(x); |
| <a name="l00164"></a>00164 <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0448.html" title="Cyan.">cyan_t</a>()) = (T2)((<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0448.html" title="Cyan.">cyan_t</a>()) - <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0404.html" title="Black.">black_t</a>()))*x1); <span class="comment">// c = (c - k) / x</span> |
| <a name="l00165"></a>00165 <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0574.html" title="Magenta.">magenta_t</a>()) = (T2)((<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0574.html" title="Magenta.">magenta_t</a>()) - <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0404.html" title="Black.">black_t</a>()))*x1); <span class="comment">// m = (m - k) / x</span> |
| <a name="l00166"></a>00166 <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0637.html" title="Yellow.">yellow_t</a>()) = (T2)((<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0637.html" title="Yellow.">yellow_t</a>()) - <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0404.html" title="Black.">black_t</a>()))*x1); <span class="comment">// y = (y - k) / x</span> |
| <a name="l00167"></a>00167 } <span class="keywordflow">else</span> { |
| <a name="l00168"></a>00168 <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0448.html" title="Cyan.">cyan_t</a>())=<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0574.html" title="Magenta.">magenta_t</a>())=<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0637.html" title="Yellow.">yellow_t</a>())=0; |
| <a name="l00169"></a>00169 } |
| <a name="l00170"></a>00170 } |
| <a name="l00171"></a>00171 }; |
| <a name="l00172"></a>00172 |
| <a name="l00179"></a>00179 <span class="keyword">template</span> <> |
| <a name="l00180"></a><a class="code" href="g_i_l_0461.html">00180</a> <span class="keyword">struct </span><a class="code" href="g_i_l_0453.html" title="Color Convertion function object. To be specialized for every src/dst color space...">default_color_converter_impl</a><cmyk_t,rgb_t> { |
| <a name="l00181"></a>00181 <span class="keyword">template</span> <<span class="keyword">typename</span> P1, <span class="keyword">typename</span> P2> |
| <a name="l00182"></a>00182 <span class="keywordtype">void</span> operator()(<span class="keyword">const</span> P1& src, P2& dst)<span class="keyword"> const </span>{ |
| <a name="l00183"></a>00183 <span class="keyword">typedef</span> <span class="keyword">typename</span> channel_type<P1>::type T1; |
| <a name="l00184"></a>00184 <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0618.html" title="Red.">red_t</a>()) = |
| <a name="l00185"></a>00185 channel_convert<typename color_element_type<P2,red_t>::type>( |
| <a name="l00186"></a>00186 channel_invert<T1>( |
| <a name="l00187"></a>00187 (std::min)(<a class="code" href="g_i_l_0429.html" title="Traits for channels. Contains the following members:.">channel_traits<T1>::max_value</a>(), |
| <a name="l00188"></a>00188 T1(<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(src,<a class="code" href="g_i_l_0448.html" title="Cyan.">cyan_t</a>())*<a class="code" href="g_i_l_0101.html#ge2e0267865f89610ef26148874a04bb5" title="Default implementation. Provide overloads for performance.">channel_invert</a>(<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(src,<a class="code" href="g_i_l_0404.html" title="Black.">black_t</a>()))+<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(src,<a class="code" href="g_i_l_0404.html" title="Black.">black_t</a>()))))); |
| <a name="l00189"></a>00189 <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0537.html" title="Green.">green_t</a>())= |
| <a name="l00190"></a>00190 channel_convert<typename color_element_type<P2,green_t>::type>( |
| <a name="l00191"></a>00191 channel_invert<T1>( |
| <a name="l00192"></a>00192 (std::min)(<a class="code" href="g_i_l_0429.html" title="Traits for channels. Contains the following members:.">channel_traits<T1>::max_value</a>(), |
| <a name="l00193"></a>00193 T1(<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(src,<a class="code" href="g_i_l_0574.html" title="Magenta.">magenta_t</a>())*<a class="code" href="g_i_l_0101.html#ge2e0267865f89610ef26148874a04bb5" title="Default implementation. Provide overloads for performance.">channel_invert</a>(<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(src,<a class="code" href="g_i_l_0404.html" title="Black.">black_t</a>()))+<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(src,<a class="code" href="g_i_l_0404.html" title="Black.">black_t</a>()))))); |
| <a name="l00194"></a>00194 <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0405.html" title="Blue.">blue_t</a>()) = |
| <a name="l00195"></a>00195 channel_convert<typename color_element_type<P2,blue_t>::type>( |
| <a name="l00196"></a>00196 channel_invert<T1>( |
| <a name="l00197"></a>00197 (std::min)(<a class="code" href="g_i_l_0429.html" title="Traits for channels. Contains the following members:.">channel_traits<T1>::max_value</a>(), |
| <a name="l00198"></a>00198 T1(<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(src,<a class="code" href="g_i_l_0637.html" title="Yellow.">yellow_t</a>())*<a class="code" href="g_i_l_0101.html#ge2e0267865f89610ef26148874a04bb5" title="Default implementation. Provide overloads for performance.">channel_invert</a>(<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(src,<a class="code" href="g_i_l_0404.html" title="Black.">black_t</a>()))+<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(src,<a class="code" href="g_i_l_0404.html" title="Black.">black_t</a>()))))); |
| <a name="l00199"></a>00199 } |
| <a name="l00200"></a>00200 }; |
| <a name="l00201"></a>00201 |
| <a name="l00202"></a>00202 |
| <a name="l00207"></a>00207 <span class="keyword">template</span> <> |
| <a name="l00208"></a><a class="code" href="g_i_l_0459.html">00208</a> <span class="keyword">struct </span><a class="code" href="g_i_l_0453.html" title="Color Convertion function object. To be specialized for every src/dst color space...">default_color_converter_impl</a><cmyk_t,gray_t> { |
| <a name="l00209"></a>00209 <span class="keyword">template</span> <<span class="keyword">typename</span> P1, <span class="keyword">typename</span> P2> |
| <a name="l00210"></a>00210 <span class="keywordtype">void</span> operator()(<span class="keyword">const</span> P1& src, P2& dst)<span class="keyword"> const </span>{ |
| <a name="l00211"></a>00211 <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0536.html" title="Gray.">gray_color_t</a>())= |
| <a name="l00212"></a>00212 channel_convert<typename color_element_type<P2,gray_t>::type>( |
| <a name="l00213"></a>00213 <a class="code" href="g_i_l_0103.html#gf73b2a47a7877767534df0eee46dda17" title="A function multiplying two channels. result = a * b / max_value.">channel_multiply</a>( |
| <a name="l00214"></a>00214 <a class="code" href="g_i_l_0101.html#ge2e0267865f89610ef26148874a04bb5" title="Default implementation. Provide overloads for performance.">channel_invert</a>( |
| <a name="l00215"></a>00215 detail::rgb_to_luminance<<span class="keyword">typename</span> <a class="code" href="g_i_l_0444.html" title="Specifies the type of the element associated with a given color tag.">color_element_type<P1,black_t>::type</a>>( |
| <a name="l00216"></a>00216 <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(src,<a class="code" href="g_i_l_0448.html" title="Cyan.">cyan_t</a>()), |
| <a name="l00217"></a>00217 <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(src,<a class="code" href="g_i_l_0574.html" title="Magenta.">magenta_t</a>()), |
| <a name="l00218"></a>00218 <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(src,<a class="code" href="g_i_l_0637.html" title="Yellow.">yellow_t</a>()) |
| <a name="l00219"></a>00219 ) |
| <a name="l00220"></a>00220 ), |
| <a name="l00221"></a>00221 <a class="code" href="g_i_l_0101.html#ge2e0267865f89610ef26148874a04bb5" title="Default implementation. Provide overloads for performance.">channel_invert</a>(<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(src,<a class="code" href="g_i_l_0404.html" title="Black.">black_t</a>())))); |
| <a name="l00222"></a>00222 } |
| <a name="l00223"></a>00223 }; |
| <a name="l00224"></a>00224 |
| <a name="l00225"></a>00225 <span class="keyword">namespace </span>detail { |
| <a name="l00226"></a>00226 <span class="keyword">template</span> <<span class="keyword">typename</span> Pixel> |
| <a name="l00227"></a>00227 <span class="keyword">typename</span> channel_type<Pixel>::type alpha_or_max_impl(<span class="keyword">const</span> Pixel& p, mpl::true_) { |
| <a name="l00228"></a>00228 <span class="keywordflow">return</span> <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(p,<a class="code" href="g_i_l_0385.html" title="Alpha.">alpha_t</a>()); |
| <a name="l00229"></a>00229 } |
| <a name="l00230"></a>00230 <span class="keyword">template</span> <<span class="keyword">typename</span> Pixel> |
| <a name="l00231"></a>00231 <span class="keyword">typename</span> channel_type<Pixel>::type alpha_or_max_impl(<span class="keyword">const</span> Pixel& , mpl::false_) { |
| <a name="l00232"></a>00232 <span class="keywordflow">return</span> channel_traits<typename channel_type<Pixel>::type>::max_value(); |
| <a name="l00233"></a>00233 } |
| <a name="l00234"></a>00234 } <span class="comment">// namespace detail</span> |
| <a name="l00235"></a>00235 |
| <a name="l00236"></a>00236 <span class="comment">// Returns max_value if the pixel has no alpha channel. Otherwise returns the alpha.</span> |
| <a name="l00237"></a>00237 <span class="keyword">template</span> <<span class="keyword">typename</span> Pixel> |
| <a name="l00238"></a>00238 <span class="keyword">typename</span> channel_type<Pixel>::type alpha_or_max(<span class="keyword">const</span> Pixel& p) { |
| <a name="l00239"></a>00239 <span class="keywordflow">return</span> detail::alpha_or_max_impl(p, mpl::contains<<span class="keyword">typename</span> color_space_type<Pixel>::type,alpha_t>()); |
| <a name="l00240"></a>00240 } |
| <a name="l00241"></a>00241 |
| <a name="l00242"></a>00242 |
| <a name="l00245"></a>00245 <span class="keyword">template</span> <<span class="keyword">typename</span> C1> |
| <a name="l00246"></a><a class="code" href="g_i_l_0455.html">00246</a> <span class="keyword">struct </span><a class="code" href="g_i_l_0453.html" title="Color Convertion function object. To be specialized for every src/dst color space...">default_color_converter_impl</a><C1,rgba_t> { |
| <a name="l00247"></a>00247 <span class="keyword">template</span> <<span class="keyword">typename</span> P1, <span class="keyword">typename</span> P2> |
| <a name="l00248"></a>00248 <span class="keywordtype">void</span> operator()(<span class="keyword">const</span> P1& src, P2& dst)<span class="keyword"> const </span>{ |
| <a name="l00249"></a>00249 <span class="keyword">typedef</span> <span class="keyword">typename</span> channel_type<P2>::type T2; |
| <a name="l00250"></a>00250 <a class="code" href="g_i_l_0599.html" title="Represents a pixel value (a container of channels). Models: HomogeneousColorBaseValueConcept...">pixel<T2,rgb_layout_t></a> tmp; |
| <a name="l00251"></a>00251 <a class="code" href="g_i_l_0453.html" title="Color Convertion function object. To be specialized for every src/dst color space...">default_color_converter_impl<C1,rgb_t></a>()(src,tmp); |
| <a name="l00252"></a>00252 <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0618.html" title="Red.">red_t</a>()) =<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(tmp,<a class="code" href="g_i_l_0618.html" title="Red.">red_t</a>()); |
| <a name="l00253"></a>00253 <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0537.html" title="Green.">green_t</a>())=<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(tmp,<a class="code" href="g_i_l_0537.html" title="Green.">green_t</a>()); |
| <a name="l00254"></a>00254 <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0405.html" title="Blue.">blue_t</a>()) =<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(tmp,<a class="code" href="g_i_l_0405.html" title="Blue.">blue_t</a>()); |
| <a name="l00255"></a>00255 <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(dst,<a class="code" href="g_i_l_0385.html" title="Alpha.">alpha_t</a>())=channel_convert<T2>(alpha_or_max(src)); |
| <a name="l00256"></a>00256 } |
| <a name="l00257"></a>00257 }; |
| <a name="l00258"></a>00258 |
| <a name="l00265"></a>00265 <span class="keyword">template</span> <<span class="keyword">typename</span> C2> |
| <a name="l00266"></a><a class="code" href="g_i_l_0471.html">00266</a> <span class="keyword">struct </span><a class="code" href="g_i_l_0453.html" title="Color Convertion function object. To be specialized for every src/dst color space...">default_color_converter_impl</a><rgba_t,C2> { |
| <a name="l00267"></a>00267 <span class="keyword">template</span> <<span class="keyword">typename</span> P1, <span class="keyword">typename</span> P2> |
| <a name="l00268"></a>00268 <span class="keywordtype">void</span> operator()(<span class="keyword">const</span> P1& src, P2& dst)<span class="keyword"> const </span>{ |
| <a name="l00269"></a>00269 <span class="keyword">typedef</span> <span class="keyword">typename</span> channel_type<P1>::type T1; |
| <a name="l00270"></a>00270 <a class="code" href="g_i_l_0453.html" title="Color Convertion function object. To be specialized for every src/dst color space...">default_color_converter_impl<rgb_t,C2></a>()( |
| <a name="l00271"></a>00271 <a class="code" href="g_i_l_0599.html" title="Represents a pixel value (a container of channels). Models: HomogeneousColorBaseValueConcept...">pixel<T1,rgb_layout_t></a>(<a class="code" href="g_i_l_0103.html#gf73b2a47a7877767534df0eee46dda17" title="A function multiplying two channels. result = a * b / max_value.">channel_multiply</a>(<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(src,<a class="code" href="g_i_l_0618.html" title="Red.">red_t</a>()), <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(src,<a class="code" href="g_i_l_0385.html" title="Alpha.">alpha_t</a>())), |
| <a name="l00272"></a>00272 <a class="code" href="g_i_l_0103.html#gf73b2a47a7877767534df0eee46dda17" title="A function multiplying two channels. result = a * b / max_value.">channel_multiply</a>(<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(src,<a class="code" href="g_i_l_0537.html" title="Green.">green_t</a>()),<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(src,<a class="code" href="g_i_l_0385.html" title="Alpha.">alpha_t</a>())), |
| <a name="l00273"></a>00273 <a class="code" href="g_i_l_0103.html#gf73b2a47a7877767534df0eee46dda17" title="A function multiplying two channels. result = a * b / max_value.">channel_multiply</a>(<a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(src,<a class="code" href="g_i_l_0405.html" title="Blue.">blue_t</a>()), <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239047ac50842800de872b9" title="Constant accessor to the element associated with a given color name.">get_color</a>(src,<a class="code" href="g_i_l_0385.html" title="Alpha.">alpha_t</a>()))) |
| <a name="l00274"></a>00274 ,dst); |
| <a name="l00275"></a>00275 } |
| <a name="l00276"></a>00276 }; |
| <a name="l00277"></a>00277 |
| <a name="l00280"></a>00280 <span class="keyword">template</span> <> |
| <a name="l00281"></a><a class="code" href="g_i_l_0473.html">00281</a> <span class="keyword">struct </span><a class="code" href="g_i_l_0453.html" title="Color Convertion function object. To be specialized for every src/dst color space...">default_color_converter_impl</a><rgba_t,rgba_t> { |
| <a name="l00282"></a>00282 <span class="keyword">template</span> <<span class="keyword">typename</span> P1, <span class="keyword">typename</span> P2> |
| <a name="l00283"></a>00283 <span class="keywordtype">void</span> operator()(<span class="keyword">const</span> P1& src, P2& dst)<span class="keyword"> const </span>{ |
| <a name="l00284"></a>00284 static_for_each(src,dst,<a class="code" href="g_i_l_0450.html" title="Same as channel_converter, except it takes the destination channel by reference,...">default_channel_converter</a>()); |
| <a name="l00285"></a>00285 } |
| <a name="l00286"></a>00286 }; |
| <a name="l00287"></a>00287 |
| <a name="l00291"></a>00291 |
| <a name="l00294"></a><a class="code" href="g_i_l_0452.html">00294</a> <span class="keyword">struct </span><a class="code" href="g_i_l_0452.html" title="class for color-converting one pixel to another">default_color_converter</a> { |
| <a name="l00295"></a>00295 <span class="keyword">template</span> <<span class="keyword">typename</span> SrcP, <span class="keyword">typename</span> DstP> |
| <a name="l00296"></a>00296 <span class="keywordtype">void</span> operator()(<span class="keyword">const</span> SrcP& src,DstP& dst)<span class="keyword"> const </span>{ |
| <a name="l00297"></a>00297 <span class="keyword">typedef</span> <span class="keyword">typename</span> color_space_type<SrcP>::type SrcColorSpace; |
| <a name="l00298"></a>00298 <span class="keyword">typedef</span> <span class="keyword">typename</span> color_space_type<DstP>::type DstColorSpace; |
| <a name="l00299"></a>00299 <a class="code" href="g_i_l_0453.html" title="Color Convertion function object. To be specialized for every src/dst color space...">default_color_converter_impl<SrcColorSpace,DstColorSpace></a>()(src,dst); |
| <a name="l00300"></a>00300 } |
| <a name="l00301"></a>00301 }; |
| <a name="l00302"></a>00302 |
| <a name="l00307"></a>00307 <span class="keyword">template</span> <<span class="keyword">typename</span> SrcP, <span class="keyword">typename</span> DstP> |
| <a name="l00308"></a><a class="code" href="g_i_l_0178.html#gaa258d34eafbf9d9e34a2a2ad6131af2">00308</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="g_i_l_0178.html#gaa258d34eafbf9d9e34a2a2ad6131af2" title="helper function for converting one pixel to another using GIL default color-converters...">color_convert</a>(<span class="keyword">const</span> SrcP& src, DstP& dst) { |
| <a name="l00309"></a>00309 <a class="code" href="g_i_l_0452.html" title="class for color-converting one pixel to another">default_color_converter</a>()(src,dst); |
| <a name="l00310"></a>00310 } |
| <a name="l00311"></a>00311 |
| <a name="l00312"></a>00312 } } <span class="comment">// namespace boost::gil</span> |
| <a name="l00313"></a>00313 |
| <a name="l00314"></a>00314 <span class="preprocessor">#endif</span> |
| </pre></div></div> |
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