Refined this object's interface slightly.

dlib/image_processing/scan_image_boxes.h

@@ -71,6 +71,9 @@ namespace dlib
             const box_generator& bg
         );
 
+        const box_generator& get_box_generator (
+        ) const { return detect_boxes; } 
+
         inline void copy_configuration (
             const scan_image_boxes& item
         );

dlib/image_processing/scan_image_boxes_abstract.h

@@ -194,13 +194,19 @@ namespace dlib
         );
         /*!
             ensures
-                - Let BASE_BG denote the box_generator object used internally for candidate
-                  box generation.  Then this function performs:
-                    BASE_BG = bg;
+                - #get_box_generator() == bg
                   (i.e. this function allows you to configure the parameters of the
                   underlying box generator used by a scan_image_boxes object)
         !*/
 
+        const box_generator& get_box_generator (
+        ) const;
+        /*!
+            ensures
+                - returns the box_generator used by this object to generate candidate
+                  object locations.
+        !*/
+
         void copy_configuration (
             const scan_image_boxes& item
         );