145 lines
4.4 KiB
C++
145 lines
4.4 KiB
C++
/*M///////////////////////////////////////////////////////////////////////////////////////
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//
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// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
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//
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// By downloading, copying, installing or using the software you agree to this license.
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// If you do not agree to this license, do not download, install,
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// copy or use the software.
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//
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//
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// License Agreement
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// For Open Source Computer Vision Library
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//
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// Copyright (C) 2015, Itseez Inc, all rights reserved.
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// Third party copyrights are property of their respective owners.
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//
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// Redistribution and use in source and binary forms, with or without modification,
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// are permitted provided that the following conditions are met:
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//
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// * Redistribution's of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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//
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// * Redistribution's in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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//
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// * The name of the copyright holders may not be used to endorse or promote products
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// derived from this software without specific prior written permission.
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//
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// This software is provided by the copyright holders and contributors "as is" and
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// any express or implied warranties, including, but not limited to, the implied
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// warranties of merchantability and fitness for a particular purpose are disclaimed.
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// In no event shall the Itseez Inc or contributors be liable for any direct,
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// indirect, incidental, special, exemplary, or consequential damages
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// (including, but not limited to, procurement of substitute goods or services;
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// loss of use, data, or profits; or business interruption) however caused
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// and on any theory of liability, whether in contract, strict liability,
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// or tort (including negligence or otherwise) arising in any way out of
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// the use of this software, even if advised of the possibility of such damage.
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//
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// Author: Jiaolong Xu <jiaolongxu AT gmail.com>
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//M*/
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#include <opencv2/dpm.hpp>
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#include <opencv2/core.hpp>
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#include <opencv2/imgproc.hpp>
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#include <opencv2/highgui.hpp>
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#include <opencv2/videoio.hpp>
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#include <opencv2/videoio/videoio_c.h>
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#include <stdio.h>
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#include <iostream>
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using namespace cv;
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using namespace cv::dpm;
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using namespace std;
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static void help()
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{
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cout << "\nThis is a demo of \"Deformable Part-based Model (DPM) cascade detection API\" using web camera.\n"
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"Call:\n"
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"./example_dpm_cascade_detect_camera <model_path>\n"
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<< endl;
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}
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void drawBoxes(Mat &frame,
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vector<DPMDetector::ObjectDetection> ds,
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Scalar color,
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string text);
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int main( int argc, char** argv )
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{
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const char* keys =
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{
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"{@model_path | | Path of the DPM cascade model}"
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};
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CommandLineParser parser(argc, argv, keys);
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string model_path(parser.get<string>(0));
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if( model_path.empty() )
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{
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help();
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return -1;
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}
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cv::Ptr<DPMDetector> detector = \
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DPMDetector::create(vector<string>(1, model_path));
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// use web camera
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VideoCapture capture(0);
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capture.set(CV_CAP_PROP_FRAME_WIDTH, 320);
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capture.set(CV_CAP_PROP_FRAME_HEIGHT, 240);
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if ( !capture.isOpened() )
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{
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cerr << "Fail to open default camera (0)!" << endl;
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return -1;
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}
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Mat frame;
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namedWindow("DPM Cascade Detection", 1);
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// the color of the rectangle
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Scalar color(0, 255, 255); // yellow
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while( capture.read(frame) )
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{
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vector<DPMDetector::ObjectDetection> ds;
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Mat image;
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frame.copyTo(image);
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double t = (double) getTickCount();
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// detection
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detector->detect(image, ds);
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// compute frame per second (fps)
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t = ((double) getTickCount() - t)/getTickFrequency();//elapsed time
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// draw boxes
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string text = format("%0.1f fps", 1.0/t);
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drawBoxes(frame, ds, color, text);
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imshow("DPM Cascade Detection", frame);
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if ( waitKey(30) >= 0)
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break;
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}
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return 0;
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}
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void drawBoxes(Mat &frame,
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vector<DPMDetector::ObjectDetection> ds,
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Scalar color,
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string text)
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{
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for (unsigned int i = 0; i < ds.size(); i++)
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{
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rectangle(frame, ds[i].rect, color, 2);
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}
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// draw text on image
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Scalar textColor(0,0,250);
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putText(frame, text, Point(10,50), FONT_HERSHEY_PLAIN, 2, textColor, 2);
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}
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