Merge pull request #13721 from smirnov-alexey:gapi_add_normalize

GAPI: Add normalize kernel in G-API (#13721)

* Add normalize kernel in G-API

In addition add several tests on new kernel

* Fix indentations and normalize test structure

* Move normalize kernel from imgproc to core

Set default parameter ddepth to -1

* Fix alignment

modules/gapi/src/api/kernels_core.cpp

@@ -355,5 +355,11 @@ GMat sqrt(const GMat& src)
     return core::GSqrt::on(src);
 }
 
+GMat normalize(const GMat& _src, double a, double b,
+               int norm_type, int ddepth)
+{
+    return core::GNormalize::on(_src, a, b, norm_type, ddepth);
+}
+
 } //namespace gapi
 } //namespace cv

modules/gapi/src/backends/cpu/gcpucore.cpp

@@ -525,6 +525,15 @@ GAPI_OCV_KERNEL(GCPUSqrt, cv::gapi::core::GSqrt)
     }
 };
 
+GAPI_OCV_KERNEL(GCPUNormalize, cv::gapi::core::GNormalize)
+{
+    static void run(const cv::Mat& src, double a, double b,
+                    int norm_type, int ddepth, cv::Mat& out)
+    {
+        cv::normalize(src, out, a, b, norm_type, ddepth);
+    }
+};
+
 cv::gapi::GKernelPackage cv::gapi::core::cpu::kernels()
 {
     static auto pkg = cv::gapi::kernels
@@ -590,6 +599,7 @@ cv::gapi::GKernelPackage cv::gapi::core::cpu::kernels()
          , GCPULUT
          , GCPUConvertTo
          , GCPUSqrt
+         , GCPUNormalize
          >();
     return pkg;
 }