Fixed issue where detected region has a negative width/height

src/openalpr/CMakeLists.txt

@@ -35,6 +35,7 @@ set(lpr_source_files
  textdetection/linefinder.cpp
  pipeline_data.cpp
  cjson.c
+ motiondetector.cpp
 )
 
  

src/openalpr/detection/detectorcpu.cpp

@@ -111,13 +111,16 @@ namespace alpr
 
     for( unsigned int i = 0; i < plates.size(); i++ )
     {
-      plates[i].x = (plates[i].x / scale_factor) + offset_x;
-      plates[i].y = (plates[i].y / scale_factor) + offset_y;
+      plates[i].x = (plates[i].x / scale_factor);
+      plates[i].y = (plates[i].y / scale_factor);
       plates[i].width = plates[i].width / scale_factor;
       plates[i].height = plates[i].height / scale_factor;
       
       // Ensure that the rectangle isn't < 0 or > maxWidth/Height
-      plates[i] = expandRect(plates[i], 0, 0, frame.cols, frame.rows);
+      plates[i] = expandRect(plates[i], 0, 0, w, h);
+      
+      plates[i].x = plates[i].x + offset_x;
+      plates[i].y = plates[i].y + offset_y;
     }
 
     vector<PlateRegion> orderedRegions = aggregateRegions(plates);

src/openalpr/detection/detectorcuda.cpp

@@ -121,13 +121,16 @@ namespace alpr
 
     for( unsigned int i = 0; i < plates.size(); i++ )
     {
-      plates[i].x = (plates[i].x / scale_factor) + offset_x;
-      plates[i].y = (plates[i].y / scale_factor) + offset_y;
+      plates[i].x = (plates[i].x / scale_factor);
+      plates[i].y = (plates[i].y / scale_factor);
       plates[i].width = plates[i].width / scale_factor;
       plates[i].height = plates[i].height / scale_factor;
       
       // Ensure that the rectangle isn't < 0 or > maxWidth/Height
-      plates[i] = expandRect(plates[i], 0, 0, frame.cols, frame.rows);
+      plates[i] = expandRect(plates[i], 0, 0, w, h);
+      
+      plates[i].x = plates[i].x + offset_x;
+      plates[i].y = plates[i].y + offset_y;
     }
 
     vector<PlateRegion> orderedRegions = aggregateRegions(plates);