added gpu::normalize function

modules/gpu/perf/perf_core.cpp

@@ -1926,4 +1926,48 @@ PERF_TEST_P(Sz_Depth_Cn_Code_Dim, Core_Reduce, Combine(
     }
 }
 
+//////////////////////////////////////////////////////////////////////
+// Normalize
+
+DEF_PARAM_TEST(Sz_Depth_NormType, cv::Size, MatDepth, NormType);
+
+PERF_TEST_P(Sz_Depth_NormType, Core_Normalize, Combine(
+    GPU_TYPICAL_MAT_SIZES,
+    Values(CV_8U, CV_16U, CV_32F, CV_64F),
+    Values(NormType(cv::NORM_INF),
+           NormType(cv::NORM_L1),
+           NormType(cv::NORM_L2),
+           NormType(cv::NORM_MINMAX))
+    ))
+{
+    cv::Size size = GET_PARAM(0);
+    int type = GET_PARAM(1);
+    int norm_type = GET_PARAM(2);
+
+    double alpha = 1;
+    double beta = 0;
+
+    cv::Mat src(size, type);
+    fillRandom(src);
+
+    if (PERF_RUN_GPU())
+    {
+        cv::gpu::GpuMat d_src(src);
+        cv::gpu::GpuMat d_dst;
+        cv::gpu::GpuMat d_norm_buf, d_cvt_buf;
+
+        TEST_CYCLE() cv::gpu::normalize(d_src, d_dst, alpha, beta, norm_type, type, cv::gpu::GpuMat(), d_norm_buf, d_cvt_buf);
+
+        GPU_SANITY_CHECK(d_dst, 1);
+    }
+    else
+    {
+        cv::Mat dst;
+
+        TEST_CYCLE() cv::normalize(src, dst, alpha, beta, norm_type, type);
+
+        CPU_SANITY_CHECK(dst, 1);
+    }
+}
+
 } // namespace