Updating to OpenALPR 2.2

Author: klawrence-fs

Diff for: README.md

@@ -42,7 +42,8 @@ var openalpr = require ("node-openalpr");
 
 function identify (id, path) {
 	console.log (openalpr.IdentifyLicense (path, function (error, output) {
-		console.log (id +" "+ output.processing_time_ms);
+		var results = output.results;
+        console.log (id +" "+ output.processing_time_ms +" "+ ((results.length > 0) ? results[0].plate : "No results"));
 
 		if (id == 349) {
 			console.log (openalpr.Stop ());
@@ -85,6 +86,7 @@ This is a breakdown of all of the methods available for node-openalpr. Start nee
 
 0. [Download and install io.js v3.0.0+](https://iojs.org/en/index.html)
 0. [Download and install git](https://git-scm.com/downloads)
+0. [Download and install cmake](https://cmake.org/download/)
 
 #### Windows
 
@@ -103,4 +105,4 @@ This is a breakdown of all of the methods available for node-openalpr. Start nee
 
 All of the code is provided as-is. We will not provide on-going support for any bugs that may be found. Please submit bug
 and features requests - we will review them but we do not garunteed that they will be addressed. Pull requests are welcome 
-and we'll review them as quickly as we can.
+and we'll review them as quickly as we can.

Diff for: includes/TRexpp.h

@@ -25,6 +25,12 @@
 #include <fstream> 
 #include <stdint.h>
 
+#ifdef WIN32
+  #define OPENALPR_DLL_EXPORT __declspec( dllexport )
+#else
+  #define OPENALPR_DLL_EXPORT 
+#endif
+
 namespace alpr
 {
 
@@ -78,6 +84,9 @@ namespace alpr
       // The number requested is always >= the topNPlates count
       int requested_topn;
 
+      // The country (training data code) that was used to recognize the plate
+      std::string country;
+      
       // the best plate is the topNPlate with the highest confidence
       AlprPlate bestPlate;
 
@@ -101,10 +110,13 @@ namespace alpr
   class AlprResults
   {
     public:
-      AlprResults() {};
+      AlprResults() {
+        frame_number = -1;
+      };
       virtual ~AlprResults() {};
 
       int64_t epoch_time;
+      int64_t frame_number;
       int img_width;
       int img_height;
       float total_processing_time_ms;
@@ -118,7 +130,7 @@ namespace alpr
 
   class Config;
   class AlprImpl;
-  class Alpr
+  class OPENALPR_DLL_EXPORT Alpr
   {
 
     public:

Diff for: includes/alpr.h

@@ -66,6 +66,13 @@ namespace alpr
     AlprResults results;
   };
 
+  struct AlprRecognizers
+  {
+    Detector* plateDetector;
+    StateDetector* stateDetector;
+    OCR* ocr;
+  };
+
   class AlprImpl
   {
 
@@ -83,6 +90,8 @@ namespace alpr
 
       void applyRegionTemplate(AlprPlateResult* result, std::string region);
 
+      AlprFullDetails analyzeSingleCountry(cv::Mat colorImg, cv::Mat grayImg, std::vector<cv::Rect> regionsOfInterest);
+
       void setDetectRegion(bool detectRegion);
       void setTopN(int topn);
       void setDefaultRegion(std::string region);
@@ -99,9 +108,8 @@ namespace alpr
 
     private:
 
-      Detector* plateDetector;
-      StateDetector* stateDetector;
-      OCR* ocr;
+      std::map<std::string, AlprRecognizers> recognizers;
+
       PreWarp* prewarp;
 
       int topN;

Diff for: includes/alpr_impl.h

@@ -26,6 +26,7 @@
 
 #include <stdio.h>
 #include <iostream>
+#include <vector>
 #include <stdlib.h>     /* getenv */
 #include <math.h>
 
@@ -40,6 +41,8 @@ namespace alpr
       virtual ~Config();
 
       bool loaded;
+      
+      std::string config_file_path;
 
       std::string country;
 
@@ -54,6 +57,9 @@ namespace alpr
 
       bool skipDetection;
 
+      bool auto_invert;
+      bool always_invert;
+
       std::string prewarp;
 
       int maxPlateAngleDegrees;
@@ -66,10 +72,15 @@ namespace alpr
       float plateWidthMM;
       float plateHeightMM;
 
-      float charHeightMM;
-      float charWidthMM;
+      std::vector<float> charHeightMM;
+      std::vector<float> charWidthMM;
+      
+      float avgCharHeightMM;
+      float avgCharWidthMM;
+      
       float charWhitespaceTopMM;
       float charWhitespaceBotMM;
+      float charWhitespaceBetweenLinesMM;
 
       int templateWidthPx;
       int templateHeightPx;
@@ -88,13 +99,18 @@ namespace alpr
       float plateLinesSensitivityVertical;
       float plateLinesSensitivityHorizontal;
 
+      float segmentationMinSpeckleHeightPercent;
       int segmentationMinBoxWidthPx;
       float segmentationMinCharHeightPercent;
       float segmentationMaxCharWidthvsAverage;
 
+      std::string detectorFile;
+      
       std::string ocrLanguage;
       int ocrMinFontSize;
 
+      bool mustMatchPattern;
+      
       float postProcessMinConfidence;
       float postProcessConfidenceSkipLevel;
       unsigned int postProcessMinCharacters;
@@ -127,11 +143,16 @@ namespace alpr
 
       std::string runtimeBaseDir;
 
+      std::vector<std::string> loaded_countries;
+
+      bool setCountry(std::string country);
+
     private:
 
       float ocrImagePercent;
       float stateIdImagePercent;
 
+      std::vector<std::string> parse_country_string(std::string countries);
 
       void loadCommonValues(std::string configFile);
       void loadCountryValues(std::string configFile, std::string country);
@@ -143,7 +164,8 @@ namespace alpr
   {
     DETECTOR_LBP_CPU=0,
     DETECTOR_LBP_GPU=1,
-    DETECTOR_MORPH_CPU=2
+    DETECTOR_MORPH_CPU=2,
+    DETECTOR_LBP_OPENCL=3
   };
 
 }

Diff for: includes/binarize_wolf.h

@@ -58,7 +58,12 @@ namespace alpr
 
       ScoreKeeper confidence_weights;
 
-      std::vector<cv::Rect> charRegions;
+      // Boxes around characters in cropped image
+      // Each row in a multiline plate is an entry in the vector
+      std::vector<std::vector<cv::Rect> > charRegions;
+      
+      // Same data, just not broken down by line
+      std::vector<cv::Rect> charRegionsFlat;
 
 
 

Diff for: includes/cjson.h

@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2015 OpenALPR Technology, Inc.
+ * Open source Automated License Plate Recognition [http://www.openalpr.com]
+ *
+ * This file is part of OpenALPR.
+ *
+ * OpenALPR is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License
+ * version 3 as published by the Free Software Foundation
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef OPENALPR_RESULTAGGREGATOR_H
+#define OPENALPR_RESULTAGGREGATOR_H
+
+
+#include "alpr_impl.h"
+
+
+// Runs the analysis for multiple training sets, and aggregates the results into the best matches
+
+struct PlateShapeInfo
+{
+  cv::Point2f center;
+  float area;
+  int max_width;
+  int max_height;
+};
+
+namespace alpr
+{
+
+  class ResultAggregator
+  {
+  public:
+    ResultAggregator();
+
+    virtual ~ResultAggregator();
+
+    void addResults(AlprFullDetails full_results);
+
+    AlprFullDetails getAggregateResults();
+
+  private:
+    std::vector<AlprFullDetails> all_results;
+
+    PlateShapeInfo getShapeInfo(AlprPlateResult plate);
+
+    std::vector<std::vector<AlprPlateResult> > findClusters();
+    int overlaps(AlprPlateResult plate, std::vector<std::vector<AlprPlateResult> > clusters);
+  };
+
+}
+
+#endif //OPENALPR_RESULTAGGREGATOR_H

Diff for: includes/colorfilter.h

@@ -55,6 +55,7 @@ namespace alpr
       bool isPointBelowLine(cv::Point tp);
 
       float getPointAt(float x);
+      float getXPointAt(float y);
 
       cv::Point closestPointOnSegmentTo(cv::Point p);
 
@@ -109,6 +110,9 @@ namespace alpr
   std::string toString(float value);
   std::string toString(double value);
 
+  std::string &ltrim(std::string &s);
+  std::string &rtrim(std::string &s);
+  std::string &trim(std::string &s);
 }
 
 #endif // OPENALPR_UTILITY_H