Refactor rgb_pixel out of object detection

Also, move the vectorize template into its own header to
stop having to declare it again in vector.

tools/python/CMakeLists.txt

@@ -21,6 +21,7 @@ add_python_module(dlib
    src/cca.cpp
    src/sequence_segmenter.cpp
    src/svm_struct.cpp
+   src/image.cpp
    src/object_detection.cpp
    )
 

tools/python/src/dlib.cpp

@@ -13,6 +13,7 @@ void bind_svm_rank_trainer();
 void bind_cca();
 void bind_sequence_segmenter();
 void bind_svm_struct();
+void bind_image_classes();
 void bind_object_detection();
 
 
@@ -32,6 +33,7 @@ BOOST_PYTHON_MODULE(dlib)
     bind_cca();
     bind_sequence_segmenter();
     bind_svm_struct();
+    bind_image_classes();
     bind_object_detection();
 }
 

tools/python/src/image.cpp

@@ -0,0 +1,39 @@
+#include <dlib/python.h>
+#include <boost/python/args.hpp>
+#include "dlib/pixel.h"
+
+using namespace dlib;
+using namespace std;
+using namespace boost::python;
+
+// ----------------------------------------------------------------------------------------
+
+string print_rgb_pixel_str(const rgb_pixel& p)
+{
+    std::ostringstream sout;
+    sout << "red: "<< (int)p.red
+         << ", green: "<< (int)p.green
+         << ", blue: "<< (int)p.blue;
+    return sout.str();
+}
+
+string print_rgb_pixel_repr(const rgb_pixel& p)
+{
+    std::ostringstream sout;
+    sout << "rgb_pixel(" << p.red << "," << p.green << "," << p.blue << ")";
+    return sout.str();
+}
+
+// ----------------------------------------------------------------------------------------
+void bind_image_classes()
+{
+    using boost::python::arg;
+
+    class_<rgb_pixel>("rgb_pixel")
+        .def(init<unsigned char,unsigned char,unsigned char>( (arg("red"),arg("green"),arg("blue")) ))
+        .def("__str__", &print_rgb_pixel_str)
+        .def("__repr__", &print_rgb_pixel_repr)
+        .add_property("red", &rgb_pixel::red)
+        .add_property("green", &rgb_pixel::green)
+        .add_property("blue", &rgb_pixel::blue);
+}

tools/python/src/indexing.h

@@ -0,0 +1,11 @@
+// Copyright (C) 2014  Davis E. King (davis@dlib.net)
+// License: Boost Software License   See LICENSE.txt for the full license.
+#ifndef DLIB_PYTHON_INDEXING_H__
+#define DLIB_PYTHON_INDEXING_H__
+
+namespace dlib
+{
+    template <typename T>
+    void resize(T& v, unsigned long n) { v.resize(n); }
+}
+#endif // DLIB_PYTHON_INDEXING_H__

tools/python/src/object_detection.cpp

@@ -11,15 +11,13 @@
   #include <dlib/gui_widgets.h>
 #endif
 #include "simple_object_detector.h"
+#include "indexing.h"
 
 
 using namespace dlib;
 using namespace std;
 using namespace boost::python;
 
-template <typename T>
-void resize(T& v, unsigned long n) { v.resize(n); }
-
 // ----------------------------------------------------------------------------------------
 
 long left(const rectangle& r) { return r.left(); }
@@ -45,24 +43,6 @@ string print_rectangle_repr(const rectangle& r)
 
 // ----------------------------------------------------------------------------------------
 
-string print_rgb_pixel_str(const rgb_pixel& p)
-{
-    std::ostringstream sout;
-    sout << "red: "<< (int)p.red 
-         << ", green: "<< (int)p.green 
-         << ", blue: "<< (int)p.blue;
-    return sout.str();
-}
-
-string print_rgb_pixel_repr(const rgb_pixel& p)
-{
-    std::ostringstream sout;
-    sout << "rgb_pixel(" << p.red << "," << p.green << "," << p.blue << ")";
-    return sout.str();
-}
-
-// ----------------------------------------------------------------------------------------
-
 std::vector<rectangle> run_detector (
     frontal_face_detector& detector,
     object img,
@@ -615,14 +595,6 @@ ensures \n\
         .def("resize", resize<type>)
         .def_pickle(serialize_pickle<type>());
     }
-
-    class_<rgb_pixel>("rgb_pixel")
-        .def(init<unsigned char,unsigned char,unsigned char>( (arg("red"),arg("green"),arg("blue")) ))
-        .def("__str__", &print_rgb_pixel_str)
-        .def("__repr__", &print_rgb_pixel_repr)
-        .add_property("red", &rgb_pixel::red)
-        .add_property("green", &rgb_pixel::green)
-        .add_property("blue", &rgb_pixel::blue);
 }
 
 // ----------------------------------------------------------------------------------------

tools/python/src/vector.cpp

@@ -7,6 +7,7 @@
 #include <dlib/matrix.h>
 #include <boost/python/slice.hpp>
 #include <dlib/geometry/vector.h>
+#include "indexing.h"
 
 
 using namespace dlib;
@@ -15,9 +16,6 @@ using namespace boost::python;
 
 typedef matrix<double,0,1> cv;
 
-template <typename T>
-void resize(T& v, unsigned long n) { v.resize(n); }
-
 void cv_set_size(cv& m, long s)
 {
     m.set_size(s);