fixed invalid output of cv::dft when using DFT_ROWS + DFT_COMPLEX_OUTPUT (http://code.opencv.org/issues/3428)

2016-09-05 22:32:57 +03:00
parent 6d691f2e05
commit 27dd27400a
2 changed files with 68 additions and 36 deletions
@@ -866,3 +866,24 @@ protected:
 };

 TEST(Core_DFT, complex_output) { Core_DFTComplexOutputTest test; test.safe_run(); }
+
+TEST(Core_DFT, complex_output2)
+{
+    for (int i = 0; i < 100; i++)
+    {
+        int type = theRNG().uniform(0, 2) ? CV_64F : CV_32F;
+        int m = theRNG().uniform(1, 10);
+        int n = theRNG().uniform(1, 10);
+        Mat x(m, n, type), out;
+        randu(x, -1., 1.);
+        dft(x, out, DFT_ROWS | DFT_COMPLEX_OUTPUT);
+        double nrm = norm(out, NORM_INF);
+        double thresh = n*m * 2;
+        if (nrm > thresh)
+        {
+            cout << "x: " << x << endl;
+            cout << "out: " << out << endl;
+            ASSERT_LT(nrm, thresh);
+        }
+    }
+}