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-// The contents of this file are in the public domain. See LICENSE_FOR_EXAMPLE_PROGRAMS.txt
-/*
- This example shows how to run a CNN based vehicle detector using dlib. The
- example loads a pretrained model and uses it to find the front and rear ends
- of cars in an image. The model used by this example was trained by the
- dnn_mmod_train_find_cars_ex.cpp example program on this dataset:
- http://dlib.net/files/data/dlib_front_and_rear_vehicles_v1.tar
-
- Users who are just learning about dlib's deep learning API should read
- the dnn_introduction_ex.cpp and dnn_introduction2_ex.cpp examples to learn
- how the API works. For an introduction to the object detection method you
- should read dnn_mmod_ex.cpp.
-
- You can also see a video of this vehicle detector running on YouTube:
- https://www.youtube.com/watch?v=OHbJ7HhbG74
-*/
-
-
-#include <iostream>
-#include <dlib/dnn.h>
-#include <dlib/image_io.h>
-#include <dlib/gui_widgets.h>
-#include <dlib/image_processing.h>
-
-using namespace std;
-using namespace dlib;
-
-
-
-// The front and rear view vehicle detector network
-template <long num_filters, typename SUBNET> using con5d = con<num_filters,5,5,2,2,SUBNET>;
-template <long num_filters, typename SUBNET> using con5 = con<num_filters,5,5,1,1,SUBNET>;
-template <typename SUBNET> using downsampler = relu<affine<con5d<32, relu<affine<con5d<32, relu<affine<con5d<16,SUBNET>>>>>>>>>;
-template <typename SUBNET> using rcon5 = relu<affine<con5<55,SUBNET>>>;
-using net_type = loss_mmod<con<1,9,9,1,1,rcon5<rcon5<rcon5<downsampler<input_rgb_image_pyramid<pyramid_down<6>>>>>>>>;
-
-// ----------------------------------------------------------------------------------------
-
-int main() try
-{
- net_type net;
- shape_predictor sp;
- // You can get this file from http://dlib.net/files/mmod_front_and_rear_end_vehicle_detector.dat.bz2
- // This network was produced by the dnn_mmod_train_find_cars_ex.cpp example program.
- // As you can see, the file also includes a separately trained shape_predictor. To see
- // a generic example of how to train those refer to train_shape_predictor_ex.cpp.
- deserialize("mmod_front_and_rear_end_vehicle_detector.dat") >> net >> sp;
-
- matrix<rgb_pixel> img;
- load_image(img, "../mmod_cars_test_image2.jpg");
-
- image_window win;
- win.set_image(img);
-
- // Run the detector on the image and show us the output.
- for (auto&& d : net(img))
- {
- // We use a shape_predictor to refine the exact shape and location of the detection
- // box. This shape_predictor is trained to simply output the 4 corner points of
- // the box. So all we do is make a rectangle that tightly contains those 4 points
- // and that rectangle is our refined detection position.
- auto fd = sp(img,d);
- rectangle rect;
- for (unsigned long j = 0; j < fd.num_parts(); ++j)
- rect += fd.part(j);
-
- if (d.label == "rear")
- win.add_overlay(rect, rgb_pixel(255,0,0), d.label);
- else
- win.add_overlay(rect, rgb_pixel(255,255,0), d.label);
- }
-
-
-
-
- cout << "Hit enter to end program" << endl;
- cin.get();
-}
-catch(image_load_error& e)
-{
- cout << e.what() << endl;
- cout << "The test image is located in the examples folder. So you should run this program from a sub folder so that the relative path is correct." << endl;
-}
-catch(serialization_error& e)
-{
- cout << e.what() << endl;
- cout << "The correct model file can be obtained from: http://dlib.net/files/mmod_front_and_rear_end_vehicle_detector.dat.bz2" << endl;
-}
-catch(std::exception& e)
-{
- cout << e.what() << endl;
-}
-
-
-
-