diff --git a/modules/imgproc/test/test_imgwarp.cpp b/modules/imgproc/test/test_imgwarp.cpp
index 4ea3b76ba8..53f7d5c2fc 100644
--- a/modules/imgproc/test/test_imgwarp.cpp
+++ b/modules/imgproc/test/test_imgwarp.cpp
@@ -1424,7 +1424,7 @@ TEST(Imgproc_fitLine_vector_2d, regression)
 
 TEST(Imgproc_fitLine_Mat_2dC2, regression)
 {
-    cv::Mat mat1(3, 1, CV_32SC2);
+    cv::Mat mat1 = Mat::zeros(3, 1, CV_32SC2);
     std::vector<float> line1;
 
     cv::fitLine(mat1, line1, CV_DIST_L2, 0 ,0 ,0);
@@ -1444,7 +1444,7 @@ TEST(Imgproc_fitLine_Mat_2dC1, regression)
 
 TEST(Imgproc_fitLine_Mat_3dC3, regression)
 {
-    cv::Mat mat1(2, 1, CV_32SC3);
+    cv::Mat mat1 = Mat::zeros(2, 1, CV_32SC3);
     std::vector<float> line1;
 
     cv::fitLine(mat1, line1, CV_DIST_L2, 0 ,0 ,0);
@@ -1454,7 +1454,7 @@ TEST(Imgproc_fitLine_Mat_3dC3, regression)
 
 TEST(Imgproc_fitLine_Mat_3dC1, regression)
 {
-    cv::Mat mat2(2, 3, CV_32SC1);
+    cv::Mat mat2 = Mat::zeros(2, 3, CV_32SC1);
     std::vector<float> line2;
 
     cv::fitLine(mat2, line2, CV_DIST_L2, 0 ,0 ,0);
diff --git a/modules/imgproc/test/test_imgwarp_strict.cpp b/modules/imgproc/test/test_imgwarp_strict.cpp
index 59b851c45e..064ba93568 100644
--- a/modules/imgproc/test/test_imgwarp_strict.cpp
+++ b/modules/imgproc/test/test_imgwarp_strict.cpp
@@ -679,8 +679,8 @@ void CV_Remap_Test::generate_test_data()
             MatIterator_<Vec2s> begin_x = mapx.begin<Vec2s>(), end_x = mapx.end<Vec2s>();
             for ( ; begin_x != end_x; ++begin_x)
             {
-                begin_x[0] = static_cast<short>(rng.uniform(static_cast<int>(_n), std::max(src.cols + n - 1, 0)));
-                begin_x[1] = static_cast<short>(rng.uniform(static_cast<int>(_n), std::max(src.rows + n - 1, 0)));
+                (*begin_x)[0] = static_cast<short>(rng.uniform(static_cast<int>(_n), std::max(src.cols + n - 1, 0)));
+                (*begin_x)[1] = static_cast<short>(rng.uniform(static_cast<int>(_n), std::max(src.rows + n - 1, 0)));
             }
 
             if (interpolation != INTER_NEAREST)