Merge pull request #22184 from heavyrain-lzy:fixbug_pyrUp

* fix the bug in pyrUp

* add test case for pyrUp

* coding style

modules/imgproc/src/pyramids.cpp

@@ -963,7 +963,7 @@ pyrUp_( const Mat& _src, Mat& _dst, int)
 
                 if (dsize.width > ssize.width*2)
                 {
-                    row[(_dst.cols-1) + x] = row[dx + cn];
+                    row[(_dst.cols-1) * cn + x] = row[dx + cn];
                 }
             }
 

modules/imgproc/test/test_pyramid.cpp

@@ -0,0 +1,19 @@
+// 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 "test_precomp.hpp"
+
+namespace opencv_test { namespace {
+
+TEST(Imgproc_PyrUp, pyrUp_regression_22184)
+{
+    Mat src(100, 100, CV_16UC3, Scalar::all(255));
+    Mat dst(100 * 2 + 1, 100 * 2 + 1, CV_16UC3, Scalar::all(0));
+    pyrUp(src, dst, Size(dst.cols, dst.rows));
+    double min_val = 0;
+    minMaxLoc(dst, &min_val);
+    ASSERT_GT(cvRound(min_val), 0);
+}
+
+}}  // namespace