fix missing addref() in ocl::Context::create(str)

backported fix from PR 18907

cmake/OpenCVDetectInferenceEngine.cmake

@@ -129,9 +129,9 @@ endif()
 
 if(INF_ENGINE_TARGET)
   if(NOT INF_ENGINE_RELEASE)
-    message(WARNING "InferenceEngine version has not been set, 2021.1 will be used by default. Set INF_ENGINE_RELEASE variable if you experience build errors.")
+    message(WARNING "InferenceEngine version has not been set, 2021.2 will be used by default. Set INF_ENGINE_RELEASE variable if you experience build errors.")
   endif()
-  set(INF_ENGINE_RELEASE "2021010000" CACHE STRING "Force IE version, should be in form YYYYAABBCC (e.g. 2020.1.0.2 -> 2020010002)")
+  set(INF_ENGINE_RELEASE "2021020000" CACHE STRING "Force IE version, should be in form YYYYAABBCC (e.g. 2020.1.0.2 -> 2020010002)")
   set_target_properties(${INF_ENGINE_TARGET} PROPERTIES
     INTERFACE_COMPILE_DEFINITIONS "HAVE_INF_ENGINE=1;INF_ENGINE_RELEASE=${INF_ENGINE_RELEASE}"
   )

modules/core/include/opencv2/core/version.hpp

@@ -8,7 +8,7 @@
 #define CV_VERSION_MAJOR    4
 #define CV_VERSION_MINOR    5
 #define CV_VERSION_REVISION 1
-#define CV_VERSION_STATUS   "-pre"
+#define CV_VERSION_STATUS   "-openvino"
 
 #define CVAUX_STR_EXP(__A)  #__A
 #define CVAUX_STR(__A)      CVAUX_STR_EXP(__A)

modules/core/src/ocl.cpp

@@ -2437,6 +2437,7 @@ public:
         if (impl)
         {
             CV_LOG_INFO(NULL, "OpenCL: reuse context@" << impl->contextId << " for configuration: " << configuration)
+            impl->addref();
             return impl;
         }
 

modules/dnn/src/model.cpp

@@ -100,7 +100,7 @@ public:
         // Faster-RCNN or R-FCN
         if (net.getLayer(0)->outputNameToIndex("im_info") != -1)
         {
-            Mat imInfo(Matx31f(size.height, size.width, 1.6f));
+            Mat imInfo(Matx13f(size.height, size.width, 1.6f));
             net.setInput(imInfo, "im_info");
         }
         net.forward(outs, outNames);

modules/dnn/src/onnx/onnx_importer.cpp

@@ -500,14 +500,17 @@ void ONNXImporter::handleNode(const opencv_onnx::NodeProto& node_proto_)
                 MatShape inpShape = outShapes[node_proto.input(0)];
                 DictValue axes = layerParams.get("axes");
                 bool keepdims = layerParams.get<int>("keepdims");
-                MatShape targetShape = inpShape;
+                MatShape targetShape;
+                std::vector<bool> shouldDelete(inpShape.size(), false);
                 for (int i = 0; i < axes.size(); i++) {
                     int axis = clamp(axes.get<int>(i), inpShape.size());
-                    if (keepdims) {
-                        targetShape[axis] = 1;
-                    } else {
-                        targetShape.erase(targetShape.begin() + axis);
-                    }
+                    shouldDelete[axis] = true;
+                }
+                for (int axis = 0; axis < inpShape.size(); ++axis){
+                    if (!shouldDelete[axis])
+                        targetShape.push_back(inpShape[axis]);
+                    else if (keepdims)
+                        targetShape.push_back(1);
                 }
 
                 if (inpShape.size() == 3 && axes.size() <= 2)

modules/dnn/src/op_inf_engine.hpp

@@ -28,10 +28,11 @@
 #define INF_ENGINE_RELEASE_2020_3 2020030000
 #define INF_ENGINE_RELEASE_2020_4 2020040000
 #define INF_ENGINE_RELEASE_2021_1 2021010000
+#define INF_ENGINE_RELEASE_2021_2 2021020000
 
 #ifndef INF_ENGINE_RELEASE
-#warning("IE version have not been provided via command-line. Using 2021.1 by default")
-#define INF_ENGINE_RELEASE INF_ENGINE_RELEASE_2021_1
+#warning("IE version have not been provided via command-line. Using 2021.2 by default")
+#define INF_ENGINE_RELEASE INF_ENGINE_RELEASE_2021_2
 #endif
 
 #define INF_ENGINE_VER_MAJOR_GT(ver) (((INF_ENGINE_RELEASE) / 10000) > ((ver) / 10000))

modules/dnn/test/test_model.cpp

@@ -206,6 +206,8 @@ TEST_P(Test_Model, DetectionOutput)
     {
         if (backend == DNN_BACKEND_OPENCV)
             scoreDiff = 4e-3;
+        else
+            scoreDiff = 2e-2;
         iouDiff = 1.8e-1;
     }