chore: import upstream snapshot with attribution

modules/imgproc/perf/perf_morph.cpp

@@ -0,0 +1,42 @@
+// This file is part of OpenCV project.
+// It is subject to the license terms in the LICENSE file found in the top-level directory
+// of this distribution and at http://opencv.org/license.html.
+#include "perf_precomp.hpp"
+
+namespace opencv_test {
+
+#define TYPICAL_MAT_TYPES_MORPH  CV_8UC1, CV_8UC4
+#define TYPICAL_MATS_MORPH       testing::Combine(SZ_ALL_GA, testing::Values(TYPICAL_MAT_TYPES_MORPH))
+
+PERF_TEST_P(Size_MatType, erode, TYPICAL_MATS_MORPH)
+{
+    Size sz = get<0>(GetParam());
+    int type = get<1>(GetParam());
+
+    Mat src(sz, type);
+    Mat dst(sz, type);
+
+    declare.in(src, WARMUP_RNG).out(dst);
+
+    int runs = (sz.width <= 320) ? 15 : 1;
+    TEST_CYCLE_MULTIRUN(runs) erode(src, dst, noArray());
+
+    SANITY_CHECK(dst);
+}
+
+PERF_TEST_P(Size_MatType, dilate, TYPICAL_MATS_MORPH)
+{
+    Size sz = get<0>(GetParam());
+    int type = get<1>(GetParam());
+
+    Mat src(sz, type);
+    Mat dst(sz, type);
+
+    declare.in(src, WARMUP_RNG).out(dst);
+
+    TEST_CYCLE() dilate(src, dst, noArray());
+
+    SANITY_CHECK(dst);
+}
+
+} // namespace