Exemple #1
0
        private static void PerformAlpr(AlprNet alpr, byte[] buffer, bool benchmark, bool writeJson)
        {
            var sw = Stopwatch.StartNew();

            sbyte[] signedBuffer = (sbyte[])(Array)buffer;
            var     results      = alpr.recognize(signedBuffer);

            sw.Stop();
            if (benchmark)
            {
                Console.WriteLine("Total Time to process image(s): {0} msec(s)", sw.ElapsedMilliseconds);
            }

            if (writeJson)
            {
                //Console.WriteLine(alpr.toJson());
            }
            else
            {
                var i = 0;
                foreach (var result in results.plates)
                {
                    Console.WriteLine("Plate {0}: {1} result(s)", i++, result.topNPlates.Count);
                    Console.WriteLine("  Processing Time: {0} msec(s)", result.processing_time_ms);
                    foreach (var plate in result.topNPlates)
                    {
                        Console.WriteLine("  - {0}\t Confidence: {1}\tMatches Template: {2}", plate.characters,
                                          plate.overall_confidence, plate.matches_template);
                    }
                }
            }
        }
Exemple #2
0
        static void Main(string[] args)
        {
            var alpr = new AlprNet(DEFAULT_PAIS, RUTA_CONF, RUTA_RUNTIME_DATA);

            if (!alpr.isLoaded())
            {
                Console.WriteLine(MENSAJE_ERROR_CARGA);
                return;
            }

            // Opcional, configurar el patron para una region en particular
            alpr.DefaultRegion = DEFAULT_REGION;

            var resultados = alpr.recognize(IMAGEN_PLACA_EJEMPLO);
            int i          = 0;

            foreach (var resultado in resultados.plates)
            {
                Console.WriteLine(MENSAJE_INICIO_RESULTADO, i++, resultado.topNPlates.Count);
                Console.WriteLine(MENSAJE_TIEMPO_PROCESAMIENTO, resultado.processing_time_ms);

                foreach (var placa in resultado.topNPlates)
                {
                    Console.WriteLine(MENSAJE_RESULTADO_FINAL, placa.characters,
                                      placa.overall_confidence, placa.matches_template);
                }
            }

            Console.ReadKey();
        }
Exemple #3
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        private void processImageFile(string fileName)
        {
            resetControls();
            var    region           = rbUSA.Checked ? "us" : "eu";
            String config_file      = Path.Combine(AssemblyDirectory, "openalpr.conf");
            String runtime_data_dir = Path.Combine(AssemblyDirectory, "runtime_data");

            using (var alpr = new AlprNet(region, config_file, runtime_data_dir))
            {
                if (!alpr.isLoaded())
                {
                    lbxPlates.Items.Add("Error initializing OpenALPR");
                    return;
                }
                picOriginal.ImageLocation = fileName;
                picOriginal.Load();

                var results = alpr.recognize(fileName);

                var images = new List <Image>(results.plates.Count());
                var i      = 1;
                foreach (var result in results.plates)
                {
                    var rect    = boundingRectangle(result.plate_points);
                    var img     = Image.FromFile(fileName);
                    var cropped = cropImage(img, rect);
                    images.Add(cropped);

                    lbxPlates.Items.Add("\t\t-- Plate #" + i++ + " --");
                    foreach (var plate in result.topNPlates)
                    {
                        lbxPlates.Items.Add(string.Format(@"{0} {1}% {2}",
                                                          plate.characters.PadRight(12),
                                                          plate.overall_confidence.ToString("N1").PadLeft(8),
                                                          plate.matches_template.ToString().PadLeft(8)));
                    }
                }

                if (images.Any())
                {
                    picLicensePlate.Image = combineImages(images);
                }
            }
        }
        /// <summary>
        /// Gets all license plate matches for their confidence for given image
        /// </summary>
        /// <param name="country">Country (US / EU)</param>
        /// <param name="imagePath">Image path</param>
        /// <returns>License plate matches for their confidence</returns>
        public List<Result> GetPlateNumberCandidates(Country country, string imagePath)
        {
            var ass = Assembly.GetExecutingAssembly();
            var assemblyDirectory = Path.GetDirectoryName(ass.Location);

            var configFile = Path.Combine(assemblyDirectory, "openalpr", "openalpr.conf");
            var runtimeDataDir = Path.Combine(assemblyDirectory, "openalpr", "runtime_data");
            using (var alpr = new AlprNet(country == Country.EU ? "eu" : "us", configFile, runtimeDataDir))
            {
                if (!alpr.isLoaded())
                {
                    throw new Exception("Error initializing OpenALPR");
                }

                var results = alpr.recognize(imagePath);
                return results.plates.SelectMany(l => l.topNPlates.Select(plate => new Result
                {
                    PlateNumber = plate.characters,
                    Confidence = plate.overall_confidence
                })).ToList();
            }
        }
Exemple #5
0
        /// <summary>
        /// Gets all license plate matches for their confidence for given image
        /// </summary>
        /// <param name="country">Country (US / EU)</param>
        /// <param name="imagePath">Image path</param>
        /// <returns>License plate matches for their confidence</returns>
        public List <Result> GetPlateNumberCandidates(Country country, string imagePath)
        {
            var ass = Assembly.GetExecutingAssembly();
            var assemblyDirectory = Path.GetDirectoryName(ass.Location);

            var configFile     = Path.Combine(assemblyDirectory, "openalpr", "openalpr.conf");
            var runtimeDataDir = Path.Combine(assemblyDirectory, "openalpr", "runtime_data");

            using (var alpr = new AlprNet(country == Country.EU ? "eu" : "us", configFile, runtimeDataDir))
            {
                if (!alpr.isLoaded())
                {
                    throw new Exception("Error initializing OpenALPR");
                }

                var results = alpr.recognize(imagePath);
                return(results.plates.SelectMany(l => l.topNPlates.Select(plate => new Result
                {
                    PlateNumber = plate.characters,
                    Confidence = plate.overall_confidence
                })).ToList());
            }
        }
        private static void PerformAlpr(AlprNet alpr, byte[] buffer, bool benchmark, bool writeJson)
        {
            var sw = Stopwatch.StartNew();
            sbyte[] signedBuffer = (sbyte[])(Array)buffer;
            var results = alpr.recognize(signedBuffer);
            sw.Stop();
            if (benchmark)
            {
                Console.WriteLine("Total Time to process image(s): {0} msec(s)", sw.ElapsedMilliseconds);
            }

            if (writeJson)
            {
                //Console.WriteLine(alpr.toJson());
            }
            else
            {
                var i = 0;
                foreach (var result in results.plates)
                {
                    Console.WriteLine("Plate {0}: {1} result(s)", i++, result.topNPlates.Count);
                    Console.WriteLine("  Processing Time: {0} msec(s)", result.processing_time_ms);
                    foreach (var plate in result.topNPlates)
                    {
                        Console.WriteLine("  - {0}\t Confidence: {1}\tMatches Template: {2}", plate.characters,
                                          plate.overall_confidence, plate.matches_template);
                    }
                }
            }
        }
Exemple #7
0
        private void processImageFile(string fileName)
        {
            resetControls();
            var region = rbUSA.Checked ? "us" : "eu";
            String config_file =  Path.Combine(AssemblyDirectory, "openalpr.conf");
            String runtime_data_dir = Path.Combine(AssemblyDirectory, "runtime_data");
            using (var alpr = new AlprNet(region, config_file, runtime_data_dir))
            {
                if (!alpr.isLoaded())
                {
                    lbxPlates.Items.Add("Error initializing OpenALPR");
                    return;
                }
                picOriginal.ImageLocation = fileName;
                picOriginal.Load();

                var results = alpr.recognize(fileName);

                var images = new List<Image>(results.plates.Count());
                var i = 1;
                foreach (var result in results.plates)
                {
                    var rect = boundingRectangle(result.plate_points);
                    var img = Image.FromFile(fileName);
                    var cropped = cropImage(img, rect);
                    images.Add(cropped);

                    lbxPlates.Items.Add("\t\t-- Plate #" + i++ + " --");
                    foreach (var plate in result.topNPlates)
                    {
                        lbxPlates.Items.Add(string.Format(@"{0} {1}% {2}",
                                                          plate.characters.PadRight(12),
                                                          plate.overall_confidence.ToString("N1").PadLeft(8),
                                                          plate.matches_template.ToString().PadLeft(8)));
                    }
                }

                if (images.Any())
                {
                    picLicensePlate.Image = combineImages(images);
                }
            }
        }