ovis: add setBackgroundColor convenience overload

modules/ovis/include/opencv2/ovis.hpp

@@ -49,6 +49,9 @@ public:
      */
     CV_WRAP virtual void setBackground(InputArray image) = 0;
 
+    /// @overload
+    CV_WRAP_AS(setBackgroundColor) virtual void setBackground(const Scalar& color) = 0;
+
     /**
      * place an entity of an mesh in the scene
      *

modules/ovis/src/ovis.cpp

@@ -300,6 +300,12 @@ public:
         rpass->getTextureUnitStates()[0]->setTextureName(name);
     }
 
+    void setBackground(const Scalar& color)
+    {
+        Mat img(1, 1, CV_8UC3, color);
+        setBackground(img);
+    }
+
     void createEntity(const String& name, const String& meshname, InputArray tvec, InputArray rot)
     {
         Entity* ent = sceneMgr->createEntity(name, meshname, RESOURCEGROUP_NAME);