Added perf test for cv::threshold

modules/imgproc/perf/perf_threshold.cpp

@@ -0,0 +1,62 @@
+#include "perf_precomp.hpp"
+
+using namespace std;
+using namespace cv;
+using namespace perf;
+
+CV_ENUM(ThreshType, THRESH_BINARY, THRESH_BINARY_INV, THRESH_TRUNC, THRESH_TOZERO, THRESH_TOZERO_INV)
+
+typedef std::tr1::tuple<Size, MatType, ThreshType> Size_MatType_ThreshType_t;
+typedef perf::TestBaseWithParam<Size_MatType_ThreshType_t> Size_MatType_ThreshType;
+
+PERF_TEST_P(Size_MatType_ThreshType, threshold,
+            testing::Combine(
+                testing::Values(TYPICAL_MAT_SIZES),
+                testing::Values(CV_8UC1, CV_16SC1),
+                testing::ValuesIn(ThreshType::all())
+            )
+          )
+{
+
+    Size sz = std::tr1::get<0>(GetParam());
+    int type = std::tr1::get<1>(GetParam());
+    ThreshType threshType = std::tr1::get<2>(GetParam());
+
+    Mat src(sz, type);
+    Mat dst(sz, type);
+
+    double thresh = cv::theRNG().uniform(1, 254);
+    double maxval = cv::theRNG().uniform(1, 254);
+
+    declare.in(src, WARMUP_RNG).out(dst);
+
+    TEST_CYCLE(100)
+    {
+        cv::threshold(src, dst, thresh, maxval, threshType);
+    }
+
+    SANITY_CHECK(dst);
+}
+
+
+typedef perf::TestBaseWithParam<Size> Size_Only;
+
+PERF_TEST_P(Size_Only, threshold_otsu, testing::Values(TYPICAL_MAT_SIZES) )
+{
+    Size sz = GetParam();
+
+    Mat src(sz, CV_8UC1);
+    Mat dst(sz, CV_8UC1);
+
+    double maxval = cv::theRNG().uniform(1, 254);
+
+    declare.in(src, WARMUP_RNG).out(dst);
+
+    TEST_CYCLE(100)
+    {
+        cv::threshold(src, dst, 0, maxval, THRESH_BINARY|THRESH_OTSU);
+    }
+
+    SANITY_CHECK(dst);
+}
+