optimized createHanningWindow

modules/imgproc/perf/perf_phasecorr.cpp

@@ -0,0 +1,22 @@
+#include "perf_precomp.hpp"
+
+using namespace std;
+using namespace cv;
+using namespace perf;
+using namespace testing;
+using std::tr1::make_tuple;
+using std::tr1::get;
+
+typedef TestBaseWithParam<Size > CreateHanningWindowFixture;
+
+PERF_TEST_P( CreateHanningWindowFixture, CreateHanningWindow, Values(szVGA, sz1080p))
+{
+    const Size size = GetParam();
+    Mat dst(size, CV_32FC1);
+
+    declare.in(dst, WARMUP_RNG).out(dst);
+
+    TEST_CYCLE() cv::createHanningWindow(dst, size, CV_32FC1);
+
+    SANITY_CHECK(dst, 1e-6, ERROR_RELATIVE);
+}