mirror of
https://github.com/kerberos-io/openalpr-base.git
synced 2025-10-05 22:06:52 +08:00
259 lines
7.5 KiB
C++
259 lines
7.5 KiB
C++
/*
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* Copyright (c) 2013 New Designs Unlimited, LLC
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* Opensource Automated License Plate Recognition [http://www.openalpr.com]
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*
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* This file is part of OpenAlpr.
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*
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* OpenAlpr is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License
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* version 3 as published by the Free Software Foundation
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <cstdio>
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#include <sstream>
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#include <iostream>
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#include <iterator>
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#include <algorithm>
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#include "opencv2/highgui/highgui.hpp"
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#include "opencv2/imgproc/imgproc.hpp"
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#include "tclap/CmdLine.h"
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#include "support/filesystem.h"
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#include "support/timing.h"
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#include "alpr.h"
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const std::string MAIN_WINDOW_NAME = "ALPR main window";
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const bool SAVE_LAST_VIDEO_STILL = false;
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const std::string LAST_VIDEO_STILL_LOCATION = "/tmp/laststill.jpg";
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/** Function Headers */
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bool detectandshow(Alpr* alpr, cv::Mat frame, std::string region, bool writeJson);
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bool measureProcessingTime = false;
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int main( int argc, const char** argv )
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{
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std::string filename;
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std::string runtimePath = "";
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bool outputJson = false;
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int seektoms = 0;
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bool detectRegion = false;
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std::string templateRegion;
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std::string country;
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int topn;
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TCLAP::CmdLine cmd("OpenAlpr Command Line Utility", ' ', Alpr::getVersion());
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TCLAP::UnlabeledValueArg<std::string> fileArg( "image_file", "Image containing license plates", false, "", "image_file_path" );
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TCLAP::ValueArg<std::string> countryCodeArg("c","country","Country code to identify (either us for USA or eu for Europe). Default=us",false, "us" ,"country_code");
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TCLAP::ValueArg<int> seekToMsArg("","seek","Seek to the specied millisecond in a video file. Default=0",false, 0 ,"integer_ms");
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TCLAP::ValueArg<std::string> runtimeDirArg("r","runtime_dir","Path to the OpenAlpr runtime data directory",false, "" ,"runtime_dir");
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TCLAP::ValueArg<std::string> templateRegionArg("t","template_region","Attempt to match the plate number against a region template (e.g., md for Maryland, ca for California)",false, "" ,"region code");
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TCLAP::ValueArg<int> topNArg("n","topn","Max number of possible plate numbers to return. Default=10",false, 10 ,"topN");
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TCLAP::SwitchArg jsonSwitch("j","json","Output recognition results in JSON format. Default=off", cmd, false);
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TCLAP::SwitchArg detectRegionSwitch("d","detect_region","Attempt to detect the region of the plate image. Default=off", cmd, false);
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TCLAP::SwitchArg clockSwitch("","clock","Measure/print the total time to process image and all plates. Default=off", cmd, false);
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try
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{
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cmd.add( fileArg );
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cmd.add( countryCodeArg );
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cmd.add( seekToMsArg );
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cmd.add( topNArg );
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cmd.add( runtimeDirArg );
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cmd.add( templateRegionArg );
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cmd.parse( argc, argv );
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filename = fileArg.getValue();
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country = countryCodeArg.getValue();
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seektoms = seekToMsArg.getValue();
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outputJson = jsonSwitch.getValue();
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runtimePath = runtimeDirArg.getValue();
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detectRegion = detectRegionSwitch.getValue();
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templateRegion = templateRegionArg.getValue();
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topn = topNArg.getValue();
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measureProcessingTime = clockSwitch.getValue();
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}
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catch (TCLAP::ArgException &e) // catch any exceptions
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{
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std::cerr << "error: " << e.error() << " for arg " << e.argId() << std::endl;
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return 1;
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}
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cv::Mat frame;
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Alpr alpr(country, runtimePath);
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alpr.setTopN(topn);
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if (detectRegion)
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alpr.setDetectRegion(detectRegion);
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if (templateRegion.empty() == false)
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alpr.setDefaultRegion(templateRegion);
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if (alpr.isLoaded() == false)
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{
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std::cerr << "Error loading OpenAlpr" << std::endl;
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return 1;
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}
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if (filename.empty())
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{
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std::string filename;
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while (std::getline(std::cin, filename))
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{
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if (fileExists(filename.c_str()))
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{
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frame = cv::imread( filename );
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detectandshow( &alpr, frame, "", outputJson);
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}
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else
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{
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std::cerr << "Image file not found: " << filename << std::endl;
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}
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}
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}
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else if (filename == "webcam")
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{
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int framenum = 0;
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cv::VideoCapture cap(0);
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if (!cap.isOpened())
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{
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std::cout << "Error opening webcam" << std::endl;
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return 1;
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}
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while (cap.read(frame))
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{
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detectandshow(&alpr, frame, "", outputJson);
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cv::waitKey(1);
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framenum++;
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}
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}
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else if (hasEnding(filename, ".avi") || hasEnding(filename, ".mp4") || hasEnding(filename, ".webm") || hasEnding(filename, ".flv"))
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{
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if (fileExists(filename.c_str()))
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{
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int framenum = 0;
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cv::VideoCapture cap=cv::VideoCapture();
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cap.open(filename);
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cap.set(CV_CAP_PROP_POS_MSEC, seektoms);
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while (cap.read(frame))
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{
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if (SAVE_LAST_VIDEO_STILL)
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{
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cv::imwrite(LAST_VIDEO_STILL_LOCATION, frame);
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}
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std::cout << "Frame: " << framenum << std::endl;
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detectandshow( &alpr, frame, "", outputJson);
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//create a 1ms delay
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cv::waitKey(1);
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framenum++;
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}
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}
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else
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{
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std::cerr << "Video file not found: " << filename << std::endl;
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}
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}
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else if (hasEnding(filename, ".png") || hasEnding(filename, ".jpg") || hasEnding(filename, ".gif"))
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{
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if (fileExists(filename.c_str()))
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{
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frame = cv::imread( filename );
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detectandshow( &alpr, frame, "", outputJson);
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}
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else
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{
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std::cerr << "Image file not found: " << filename << std::endl;
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}
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}
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else if (DirectoryExists(filename.c_str()))
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{
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std::vector<std::string> files = getFilesInDir(filename.c_str());
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std::sort( files.begin(), files.end(), stringCompare );
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for (int i = 0; i< files.size(); i++)
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{
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if (hasEnding(files[i], ".jpg") || hasEnding(files[i], ".png"))
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{
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std::string fullpath = filename + "/" + files[i];
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std::cout << fullpath << std::endl;
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frame = cv::imread( fullpath.c_str() );
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if (detectandshow( &alpr, frame, "", outputJson))
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{
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//while ((char) cv::waitKey(50) != 'c') { }
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}
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else
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{
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//cv::waitKey(50);
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}
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}
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}
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}
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else
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{
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std::cerr << "Unknown file type" << std::endl;
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return 1;
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}
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return 0;
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}
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bool detectandshow( Alpr* alpr, cv::Mat frame, std::string region, bool writeJson)
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{
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std::vector<uchar> buffer;
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cv::imencode(".bmp", frame, buffer );
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timespec startTime;
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getTime(&startTime);
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std::vector<AlprResult> results = alpr->recognize(buffer);
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if (writeJson)
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{
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std::cout << alpr->toJson(results) << std::endl;
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}
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else
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{
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for (int i = 0; i < results.size(); i++)
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{
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std::cout << "plate" << i << ": " << results[i].result_count << " results -- Processing Time = " << results[i].processing_time_ms << "ms." << std::endl;
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for (int k = 0; k < results[i].topNPlates.size(); k++)
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{
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std::cout << " - " << results[i].topNPlates[k].characters << "\t confidence: " << results[i].topNPlates[k].overall_confidence << "\t template_match: " << results[i].topNPlates[k].matches_template << std::endl;
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}
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}
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}
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timespec endTime;
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getTime(&endTime);
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if (measureProcessingTime)
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std::cout << "Total Time to process image: " << diffclock(startTime, endTime) << "ms." << std::endl;
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return results.size() > 0;
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}
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