Removed unused confidence values and replaced with a disqualify boolean

The disqualify reason is purely for debugging.  This should help make it obvious why a plate candidate was rejected

src/misc_utilities/benchmarks/benchmark.cpp

@@ -224,7 +224,7 @@ int main( int argc, const char** argv )
           double analysisTime = diffclock(startTime, endTime);
           cout << "\tRegion " << z << ": Analysis time: " << analysisTime << "ms." << endl;
 
-          if (pipeline_data.plate_area_confidence > 10)
+          if (!pipeline_data.disqualified)
           {
             lpAnalysisPositiveTimes.push_back(analysisTime);
 

src/openalpr/alpr_impl.cpp

@@ -152,7 +152,7 @@ namespace alpr
       lp.recognize();
 
       bool plateDetected = false;
-      if (pipeline_data.plate_area_confidence > 10)
+      if (!pipeline_data.disqualified)
       {
         AlprPlateResult plateResult;
         plateResult.region = defaultRegion;

src/openalpr/edges/edgefinder.cpp

@@ -31,7 +31,6 @@ namespace alpr
     this->pipeline_data = pipeline_data;
 
     // First re-crop the area from the original picture knowing the text position
-    this->confidence = 0;
 
   }
 
@@ -128,7 +127,6 @@ namespace alpr
     PlateCorners cornerFinder(newCrop, &plateLines, pipeline_data, newLines);
     vector<Point> smallPlateCorners = cornerFinder.findPlateCorners();
 
-    confidence = cornerFinder.confidence;
 
     // Transform the best corner points back to the original image
     std::vector<Point2f> imgArea;

src/openalpr/edges/edgefinder.h

@@ -36,7 +36,6 @@ namespace alpr
 
     std::vector<cv::Point2f> findEdgeCorners();
 
-    float confidence;
 
   private:
     PipelineData* pipeline_data;

src/openalpr/edges/platecorners.cpp

@@ -103,11 +103,16 @@ namespace alpr
 
     // Check if a left/right edge has been established.
     if (bestLeft.p1.x == 0 && bestLeft.p1.y == 0 && bestLeft.p2.x == 0 && bestLeft.p2.y == 0)
-      confidence = 0;
+    {
+      pipelineData->disqualified = true;
+      pipelineData->disqualify_reason = "platecorners did not find a left/right edge";
+    }
     else if (bestTop.p1.x == 0 && bestTop.p1.y == 0 && bestTop.p2.x == 0 && bestTop.p2.y == 0)
-      confidence = 0;
-    else
-      confidence = 100;
+    {
+      pipelineData->disqualified = true;
+      pipelineData->disqualify_reason = "platecorners did not find a top/bottom edge";
+    }
+
 
     vector<Point> corners;
     corners.push_back(bestTop.intersection(bestLeft));

src/openalpr/edges/platecorners.h

@@ -53,8 +53,6 @@ namespace alpr
 
       std::vector<cv::Point> findPlateCorners();
 
-      float confidence;
-
     private:
 
       PipelineData* pipelineData;

src/openalpr/licenseplatecandidate.cpp

@@ -46,7 +46,6 @@ namespace alpr
   {
     charSegmenter = NULL;
 
-    pipeline_data->plate_area_confidence = 0;
     pipeline_data->isMultiline = config->multiline;
 
 
@@ -58,14 +57,14 @@ namespace alpr
 
     CharacterAnalysis textAnalysis(pipeline_data);
 
-    if (textAnalysis.confidence > 10)
+    if (!pipeline_data->disqualified)
     {
 
       EdgeFinder edgeFinder(pipeline_data);
 
       pipeline_data->plate_corners = edgeFinder.findEdgeCorners();
 
-      if (edgeFinder.confidence > 0)
+      if (!pipeline_data->disqualified)
       {
 
         timespec startTime;
@@ -120,7 +119,6 @@ namespace alpr
         charSegmenter = new CharacterSegmenter(pipeline_data);
 
 
-        pipeline_data->plate_area_confidence = 100;
       }
 
     }

src/openalpr/pipeline_data.cpp

@@ -48,5 +48,7 @@ namespace alpr
     this->config = config;
     this->region_confidence = 0;
     this->plate_inverted = false;
+    this->disqualified = false;
+    this->disqualify_reason = "";
   }
 }

src/openalpr/pipeline_data.h

@@ -6,6 +6,7 @@
 #include "utility.h"
 #include "config.h"
 #include "textdetection/textline.h"
+#include "edges/scorekeeper.h"
 
 namespace alpr
 {
@@ -47,8 +48,10 @@ namespace alpr
       std::string region_code;
       float region_confidence;
 
+      bool disqualified;
+      std::string disqualify_reason;
       
-      float plate_area_confidence;
+      ScoreKeeper confidence_weights;
 
       std::vector<cv::Rect> charRegions;
 

src/openalpr/textdetection/characteranalysis.cpp

@@ -35,8 +35,6 @@ namespace alpr
     this->pipeline_data = pipeline_data;
     this->config = pipeline_data->config;
 
-    this->confidence = 0;
-
     if (this->config->debugCharAnalysis)
       cout << "Starting CharacterAnalysis identification" << endl;
 
@@ -129,7 +127,11 @@ namespace alpr
       cout << "Best fit score: " << bestFitScore << " Index: " << bestFitIndex << endl;
 
     if (bestFitScore <= 1)
+    {
+      pipeline_data->disqualified = true;
+      pipeline_data->disqualify_reason = "Low best fit score in characteranalysis";
       return;
+    }
 
     //getColorMask(img, allContours, allHierarchy, charSegments);
 
@@ -202,10 +204,21 @@ namespace alpr
         confidenceDrainers += 95;
       }
 
-      if (confidenceDrainers >= 100)
-        this->confidence=1;
+      if (confidenceDrainers >= 90)
+      {
+        pipeline_data->disqualified = true;
+        pipeline_data->disqualify_reason = "Low confidence in characteranalysis";
+      }
       else
-        this->confidence = 100 - confidenceDrainers;
+      {
+        float confidence = 100 - confidenceDrainers;
+        pipeline_data->confidence_weights.setScore("CHARACTER_ANALYSIS_SCORE", confidence, 1.0);
+      }
+    }
+    else
+    {
+        pipeline_data->disqualified = true;
+        pipeline_data->disqualify_reason = "No text lines found in characteranalysis";
     }
 
     if (config->debugTiming)

src/openalpr/textdetection/characteranalysis.h

@@ -39,8 +39,6 @@ namespace alpr
       CharacterAnalysis(PipelineData* pipeline_data);
       virtual ~CharacterAnalysis();
 
-      int confidence;
-
       cv::Mat bestThreshold;
 
       TextContours bestContours;