Merge remote-tracking branch 'upstream/3.4' into merge-3.4

diff --cc 3rdparty/openvx/hal/openvx_hal.cpp
Simple merge

diff --cc 3rdparty/openvx/hal/openvx_hal.hpp
Simple merge

diff --cc cmake/OpenCVDetectInferenceEngine.cmake
Simple merge

diff --cc modules/core/src/system.cpp
Simple merge

diff --cc modules/dnn/src/layers/region_layer.cpp
index 7da211a,578b0d7..242e5e6
--- 1/modules/dnn/src/layers/region_layer.cpp
--- 2/modules/dnn/src/layers/region_layer.cpp
+++ b/modules/dnn/src/layers/region_layer.cpp
@@@ -69,7 -63,8 +69,8 @@@ class RegionLayerImpl CV_FINAL : publi
  {
  public:
      int coords, classes, anchors, classfix;
 -    float thresh, nmsThreshold, scale_x_y;
 +    float thresh, scale_x_y;
+     int new_coords;
      bool useSoftmax, useLogistic;
  #ifdef HAVE_OPENCL
      UMat blob_umat;
@@@ -119,12 -115,8 +121,12 @@@
      {
  #ifdef HAVE_DNN_NGRAPH
      if (backendId == DNN_BACKEND_INFERENCE_ENGINE_NGRAPH)
-         return INF_ENGINE_VER_MAJOR_GE(INF_ENGINE_RELEASE_2020_2) && preferableTarget != DNN_TARGET_MYRIAD;
+         return INF_ENGINE_VER_MAJOR_GE(INF_ENGINE_RELEASE_2020_2) && preferableTarget != DNN_TARGET_MYRIAD && new_coords == 0;
  #endif
-             return true;
 +#ifdef HAVE_CUDA
 +        if (backendId == DNN_BACKEND_CUDA)
++            return new_coords == 0;
 +#endif
          return backendId == DNN_BACKEND_OPENCV;
      }
  

diff --cc modules/dnn/src/onnx/onnx_importer.cpp
Simple merge

diff --cc modules/dnn/test/test_darknet_importer.cpp
Simple merge

diff --cc modules/dnn/test/test_onnx_importer.cpp
Simple merge

diff --cc modules/imgproc/include/opencv2/imgproc/hal/hal.hpp
Simple merge

diff --cc modules/imgproc/src/hal_replacement.hpp
Simple merge

diff --cc modules/photo/src/inpaint.cpp
Simple merge

diff --cc samples/dnn/text_detection.py
Simple merge