diff --git a/modules/ocl/test/test_arithm.cpp b/modules/ocl/test/test_arithm.cpp
index e23b3d104a..9b9cec9381 100644
--- a/modules/ocl/test/test_arithm.cpp
+++ b/modules/ocl/test/test_arithm.cpp
@@ -172,14 +172,26 @@ PARAM_TEST_CASE(ArithmTestBase, MatType, bool)
         gmask = mask_roi; //end
     }
 
+    void Near(double threshold = 0.)
+    {
+        cv::Mat cpu_dst;
+        gdst_whole.download(cpu_dst);
+        EXPECT_MAT_NEAR(dst, cpu_dst, threshold);
+    }
+
+    void Near1(double threshold = 0.)
+    {
+        cv::Mat cpu_dst1;
+        gdst1_whole.download(cpu_dst1);      
+        EXPECT_MAT_NEAR(dst1, cpu_dst1, threshold);
+    }
+
 };
 ////////////////////////////////lut/////////////////////////////////////////////////
-
 struct Lut : ArithmTestBase {};
 #define VARNAME(A) string(#A);
 
 
-
 TEST_P(Lut, Mat)
 {
 
@@ -200,10 +212,7 @@ TEST_P(Lut, Mat)
 
         cv::LUT(mat1_roi, mat2_roi, dst_roi);
         cv::ocl::LUT(gmat1, gmat2, gdst);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download (cpu_dst);
-        EXPECT_MAT_NEAR(dst, cpu_dst, 0, "");
+        Near(0);
     }
 }
 
@@ -219,12 +228,7 @@ TEST_P(Exp, Mat)
 
         cv::exp(mat1_roi, dst_roi);
         cv::ocl::exp(gmat1, gdst);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-
-        EXPECT_MAT_NEAR(dst, cpu_dst, 2, "");
-
+        Near(2);
     }
 }
 
@@ -240,10 +244,7 @@ TEST_P(Log, Mat)
 
         cv::log(mat1_roi, dst_roi);
         cv::ocl::log(gmat1, gdst);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-        EXPECT_MAT_NEAR(dst, cpu_dst, 1, "");
+        Near(1);
     }
 }
 
@@ -259,10 +260,7 @@ TEST_P(Add, Mat)
 
         cv::add(mat1_roi, mat2_roi, dst_roi);
         cv::ocl::add(gmat1, gmat2, gdst);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-        EXPECT_MAT_NEAR(dst, cpu_dst, 0.0, "");
+        Near(0);
     }
 }
 
@@ -274,12 +272,10 @@ TEST_P(Add, Mat_Mask)
 
         cv::add(mat1_roi, mat2_roi, dst_roi, mask_roi);
         cv::ocl::add(gmat1, gmat2, gdst, gmask);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-        EXPECT_MAT_NEAR(dst, cpu_dst, 0.0, "");
+        Near(0);
     }
 }
+
 TEST_P(Add, Scalar)
 {
     for(int j = 0; j < LOOP_TIMES; j++)
@@ -288,10 +284,7 @@ TEST_P(Add, Scalar)
 
         cv::add(mat1_roi, val, dst_roi);
         cv::ocl::add(gmat1, val, gdst);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-        EXPECT_MAT_NEAR(dst, cpu_dst, 1e-5, "");
+        Near(1e-5);
     }
 }
 
@@ -303,10 +296,7 @@ TEST_P(Add, Scalar_Mask)
 
         cv::add(mat1_roi, val, dst_roi, mask_roi);
         cv::ocl::add(gmat1, val, gdst, gmask);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-        EXPECT_MAT_NEAR(dst, cpu_dst, 1e-5, "");
+        Near(1e-5);
     }
 }
 
@@ -323,10 +313,7 @@ TEST_P(Sub, Mat)
 
         cv::subtract(mat1_roi, mat2_roi, dst_roi);
         cv::ocl::subtract(gmat1, gmat2, gdst);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-        EXPECT_MAT_NEAR(dst, cpu_dst, 0.0, "");
+        Near(0);
     }
 }
 
@@ -338,10 +325,7 @@ TEST_P(Sub, Mat_Mask)
 
         cv::subtract(mat1_roi, mat2_roi, dst_roi, mask_roi);
         cv::ocl::subtract(gmat1, gmat2, gdst, gmask);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-        EXPECT_MAT_NEAR(dst, cpu_dst, 0.0, "");
+        Near(0);
     }
 }
 
@@ -353,10 +337,7 @@ TEST_P(Sub, Scalar)
 
         cv::subtract(mat1_roi, val, dst_roi);
         cv::ocl::subtract(gmat1, val, gdst);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-        EXPECT_MAT_NEAR(dst, cpu_dst, 1e-5, "");
+        Near(1e-5);
     }
 }
 
@@ -368,10 +349,7 @@ TEST_P(Sub, Scalar_Mask)
 
         cv::subtract(mat1_roi, val, dst_roi, mask_roi);
         cv::ocl::subtract(gmat1, val, gdst, gmask);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-        EXPECT_MAT_NEAR(dst, cpu_dst, 1e-5, "");
+        Near(1e-5);
     }
 }
 
@@ -388,10 +366,7 @@ TEST_P(Mul, Mat)
 
         cv::multiply(mat1_roi, mat2_roi, dst_roi);
         cv::ocl::multiply(gmat1, gmat2, gdst);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-        EXPECT_MAT_NEAR(dst, cpu_dst, 0.0, "");
+        Near(0);
     }
 }
 
@@ -406,10 +381,7 @@ TEST_P(Mul, Mat_Scalar)
 
         cv::multiply(mat1_roi, mat2_roi, dst_roi, s);
         cv::ocl::multiply(gmat1, gmat2, gdst, s);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-        EXPECT_MAT_NEAR(dst, cpu_dst, 0.001, "");
+        Near(.001);
     }
 }
 
@@ -425,10 +397,7 @@ TEST_P(Div, Mat)
 
         cv::divide(mat1_roi, mat2_roi, dst_roi);
         cv::ocl::divide(gmat1, gmat2, gdst);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-        EXPECT_MAT_NEAR(dst, cpu_dst, 1, "");
+        Near(1);
     }
 }
 
@@ -443,10 +412,7 @@ TEST_P(Div, Mat_Scalar)
 
         cv::divide(mat1_roi, mat2_roi, dst_roi, s);
         cv::ocl::divide(gmat1, gmat2, gdst, s);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-        EXPECT_MAT_NEAR(dst, cpu_dst, 0.001, "");
+        Near(.001);
     }
 }
 
@@ -461,10 +427,7 @@ TEST_P(Absdiff, Mat)
 
         cv::absdiff(mat1_roi, mat2_roi, dst_roi);
         cv::ocl::absdiff(gmat1, gmat2, gdst);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-        EXPECT_MAT_NEAR(dst, cpu_dst, 0, "");
+        Near(0);
     }
 }
 
@@ -476,10 +439,7 @@ TEST_P(Absdiff, Mat_Scalar)
 
         cv::absdiff(mat1_roi, val, dst_roi);
         cv::ocl::absdiff(gmat1, val, gdst);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-        EXPECT_MAT_NEAR(dst, cpu_dst, 1e-5, "");
+        Near(1e-5);
     }
 }
 
@@ -495,14 +455,8 @@ TEST_P(CartToPolar, angleInDegree)
 
         cv::cartToPolar(mat1_roi, mat2_roi, dst_roi, dst1_roi, 1);
         cv::ocl::cartToPolar(gmat1, gmat2, gdst, gdst1, 1);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-
-        cv::Mat cpu_dst1;
-        gdst1_whole.download(cpu_dst1);
-        EXPECT_MAT_NEAR(dst, cpu_dst, 0.5, "");
-        EXPECT_MAT_NEAR(dst1, cpu_dst1, 0.5, "");
+        Near(.5);
+        Near1(.5);
     }
 }
 
@@ -514,14 +468,8 @@ TEST_P(CartToPolar, angleInRadians)
 
         cv::cartToPolar(mat1_roi, mat2_roi, dst_roi, dst1_roi, 0);
         cv::ocl::cartToPolar(gmat1, gmat2, gdst, gdst1, 0);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-
-        cv::Mat cpu_dst1;
-        gdst1_whole.download(cpu_dst1);
-        EXPECT_MAT_NEAR(dst, cpu_dst, 0.5, "");
-        EXPECT_MAT_NEAR(dst1, cpu_dst1, 0.5, "");
+        Near(.5);
+        Near1(.5);
     }
 }
 
@@ -536,15 +484,8 @@ TEST_P(PolarToCart, angleInDegree)
 
         cv::polarToCart(mat1_roi, mat2_roi, dst_roi, dst1_roi, 1);
         cv::ocl::polarToCart(gmat1, gmat2, gdst, gdst1, 1);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-
-        cv::Mat cpu_dst1;
-        gdst1_whole.download(cpu_dst1);
-
-        EXPECT_MAT_NEAR(dst, cpu_dst, 0.5, "");
-        EXPECT_MAT_NEAR(dst1, cpu_dst1, 0.5, "");
+        Near(.5);
+        Near1(.5);
     }
 }
 
@@ -556,15 +497,8 @@ TEST_P(PolarToCart, angleInRadians)
 
         cv::polarToCart(mat1_roi, mat2_roi, dst_roi, dst1_roi, 0);
         cv::ocl::polarToCart(gmat1, gmat2, gdst, gdst1, 0);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-
-        cv::Mat cpu_dst1;
-        gdst1_whole.download(cpu_dst1);
-
-        EXPECT_MAT_NEAR(dst, cpu_dst, 0.5, "");
-        EXPECT_MAT_NEAR(dst1, cpu_dst1, 0.5, "");
+        Near(.5);
+        Near1(.5);
     }
 }
 
@@ -581,11 +515,7 @@ TEST_P(Magnitude, Mat)
 
         cv::magnitude(mat1_roi, mat2_roi, dst_roi);
         cv::ocl::magnitude(gmat1, gmat2, gdst);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-
-        EXPECT_MAT_NEAR(dst, cpu_dst, 1e-5, "");
+        Near(1e-5);
     }
 }
 
@@ -600,16 +530,11 @@ TEST_P(Transpose, Mat)
 
         cv::transpose(mat1_roi, dst_roi);
         cv::ocl::transpose(gmat1, gdst);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-
-        EXPECT_MAT_NEAR(dst, cpu_dst, 1e-5, "");
+        Near(1e-5);
     }
 }
 
 
-
 struct Flip : ArithmTestBase {};
 
 TEST_P(Flip, X)
@@ -620,11 +545,7 @@ TEST_P(Flip, X)
 
         cv::flip(mat1_roi, dst_roi, 0);
         cv::ocl::flip(gmat1, gdst, 0);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-
-        EXPECT_MAT_NEAR(dst, cpu_dst, 1e-5, "");
+        Near(1e-5);
     }
 }
 
@@ -636,11 +557,7 @@ TEST_P(Flip, Y)
 
         cv::flip(mat1_roi, dst_roi, 1);
         cv::ocl::flip(gmat1, gdst, 1);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-
-        EXPECT_MAT_NEAR(dst, cpu_dst, 1e-5, "");
+        Near(1e-5);
     }
 }
 
@@ -652,11 +569,7 @@ TEST_P(Flip, BOTH)
 
         cv::flip(mat1_roi, dst_roi, -1);
         cv::ocl::flip(gmat1, gdst, -1);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-
-        EXPECT_MAT_NEAR(dst, cpu_dst, 1e-5, "");
+        Near(1e-5);
     }
 }
 
@@ -1016,11 +929,7 @@ TEST_P(Phase, Mat)
             random_roi();
             cv::phase(mat1_roi, mat2_roi, dst_roi, angelInDegrees ? true : false);
             cv::ocl::phase(gmat1, gmat2, gdst, angelInDegrees ? true : false);
-
-            cv::Mat cpu_dst;
-            gdst_whole.download(cpu_dst);
-
-            EXPECT_MAT_NEAR(dst, cpu_dst, 1e-2, "");
+            Near(1e-2);
         }
     }
 }
@@ -1037,11 +946,7 @@ TEST_P(Bitwise_and, Mat)
 
         cv::bitwise_and(mat1_roi, mat2_roi, dst_roi);
         cv::ocl::bitwise_and(gmat1, gmat2, gdst);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-
-        EXPECT_MAT_NEAR(dst, cpu_dst, 0.0, "");
+        Near(0);
     }
 }
 
@@ -1053,13 +958,10 @@ TEST_P(Bitwise_and, Mat_Mask)
 
         cv::bitwise_and(mat1_roi, mat2_roi, dst_roi, mask_roi);
         cv::ocl::bitwise_and(gmat1, gmat2, gdst, gmask);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-
-        EXPECT_MAT_NEAR(dst, cpu_dst, 0.0, "");
+        Near(0);
     }
 }
+
 TEST_P(Bitwise_and, Scalar)
 {
     for(int j = 0; j < LOOP_TIMES; j++)
@@ -1068,12 +970,7 @@ TEST_P(Bitwise_and, Scalar)
 
         cv::bitwise_and(mat1_roi, val, dst_roi);
         cv::ocl::bitwise_and(gmat1, val, gdst);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-
-        EXPECT_MAT_NEAR(dst, cpu_dst, 1e-5, "");
-
+        Near(1e-5);
     }
 }
 
@@ -1085,11 +982,7 @@ TEST_P(Bitwise_and, Scalar_Mask)
 
         cv::bitwise_and(mat1_roi, val, dst_roi, mask_roi);
         cv::ocl::bitwise_and(gmat1, val, gdst, gmask);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-
-        EXPECT_MAT_NEAR(dst, cpu_dst, 1e-5, "");
+        Near(1e-5);
     }
 }
 
@@ -1107,11 +1000,7 @@ TEST_P(Bitwise_or, Mat)
 
         cv::bitwise_or(mat1_roi, mat2_roi, dst_roi);
         cv::ocl::bitwise_or(gmat1, gmat2, gdst);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-
-        EXPECT_MAT_NEAR(dst, cpu_dst, 0.0, "");
+        Near(0);
     }
 }
 
@@ -1123,13 +1012,10 @@ TEST_P(Bitwise_or, Mat_Mask)
 
         cv::bitwise_or(mat1_roi, mat2_roi, dst_roi, mask_roi);
         cv::ocl::bitwise_or(gmat1, gmat2, gdst, gmask);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-
-        EXPECT_MAT_NEAR(dst, cpu_dst, 0.0, "");
+        Near(0);
     }
 }
+
 TEST_P(Bitwise_or, Scalar)
 {
     for(int j = 0; j < LOOP_TIMES; j++)
@@ -1138,11 +1024,7 @@ TEST_P(Bitwise_or, Scalar)
 
         cv::bitwise_or(mat1_roi, val, dst_roi);
         cv::ocl::bitwise_or(gmat1, val, gdst);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-
-        EXPECT_MAT_NEAR(dst, cpu_dst, 1e-5, "");
+        Near(1e-5);
     }
 }
 
@@ -1154,11 +1036,7 @@ TEST_P(Bitwise_or, Scalar_Mask)
 
         cv::bitwise_or(mat1_roi, val, dst_roi, mask_roi);
         cv::ocl::bitwise_or(gmat1, val, gdst, gmask);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-
-        EXPECT_MAT_NEAR(dst, cpu_dst, 1e-5, "");
+        Near(1e-5);
     }
 }
 
@@ -1176,11 +1054,7 @@ TEST_P(Bitwise_xor, Mat)
 
         cv::bitwise_xor(mat1_roi, mat2_roi, dst_roi);
         cv::ocl::bitwise_xor(gmat1, gmat2, gdst);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-
-        EXPECT_MAT_NEAR(dst, cpu_dst, 0.0, "");
+        Near(0);
     }
 }
 
@@ -1192,13 +1066,10 @@ TEST_P(Bitwise_xor, Mat_Mask)
 
         cv::bitwise_xor(mat1_roi, mat2_roi, dst_roi, mask_roi);
         cv::ocl::bitwise_xor(gmat1, gmat2, gdst, gmask);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-
-        EXPECT_MAT_NEAR(dst, cpu_dst, 0.0, "");
+        Near(0);
     }
 }
+
 TEST_P(Bitwise_xor, Scalar)
 {
     for(int j = 0; j < LOOP_TIMES; j++)
@@ -1207,11 +1078,7 @@ TEST_P(Bitwise_xor, Scalar)
 
         cv::bitwise_xor(mat1_roi, val, dst_roi);
         cv::ocl::bitwise_xor(gmat1, val, gdst);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-
-        EXPECT_MAT_NEAR(dst, cpu_dst, 1e-5, "");
+        Near(1e-5);
     }
 }
 
@@ -1223,11 +1090,7 @@ TEST_P(Bitwise_xor, Scalar_Mask)
 
         cv::bitwise_xor(mat1_roi, val, dst_roi, mask_roi);
         cv::ocl::bitwise_xor(gmat1, val, gdst, gmask);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-
-        EXPECT_MAT_NEAR(dst, cpu_dst, 1e-5, "");
+        Near(1e-5);
     }
 }
 
@@ -1244,11 +1107,7 @@ TEST_P(Bitwise_not, Mat)
 
         cv::bitwise_not(mat1_roi, dst_roi);
         cv::ocl::bitwise_not(gmat1, gdst);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-
-        EXPECT_MAT_NEAR(dst, cpu_dst, 0.0, "");
+        Near(0);
     }
 }
 
@@ -1277,11 +1136,7 @@ TEST_P(Compare, Mat)
 
             cv::compare(mat1_roi, mat2_roi, dst_roi, cmp_codes[i]);
             cv::ocl::compare(gmat1, gmat2, gdst, cmp_codes[i]);
-
-            cv::Mat cpu_dst;
-            gdst_whole.download(cpu_dst);
-
-            EXPECT_MAT_NEAR(dst, cpu_dst, 0.0, "");
+            Near(0);
         }
     }
 
@@ -1303,11 +1158,7 @@ TEST_P(Pow, Mat)
         double p = 4.5;
         cv::pow(mat1_roi, p, dst_roi);
         cv::ocl::pow(gmat1, p, gdst);
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-
-        EXPECT_MAT_NEAR(dst, cpu_dst, 1, "");
+        Near(1);
     }
 }
 
@@ -1344,7 +1195,7 @@ TEST_P(MagnitudeSqr, Mat)
         cv::Mat cpu_dst;
         cldst.download(cpu_dst);
 
-        EXPECT_MAT_NEAR(dst, cpu_dst, 1, "");
+        EXPECT_MAT_NEAR(dst, cpu_dst, 1);
     }
 }
 
@@ -1365,18 +1216,13 @@ TEST_P(AddWeighted, Mat)
 
         cv::ocl::addWeighted(gmat1, alpha, gmat2, beta, gama, gdst);
 
-
-        cv::Mat cpu_dst;
-        gdst_whole.download(cpu_dst);
-
-        EXPECT_MAT_NEAR(dst, cpu_dst, 1e-5, "");
+        Near(1e-5);
     }
 }
 
 
 
 
-
 //********test****************
 
 INSTANTIATE_TEST_CASE_P(Arithm, Lut, Combine(
diff --git a/modules/ocl/test/test_blend.cpp b/modules/ocl/test/test_blend.cpp
index 7e58303723..292353be60 100644
--- a/modules/ocl/test/test_blend.cpp
+++ b/modules/ocl/test/test_blend.cpp
@@ -109,7 +109,7 @@ TEST_P(Blend, Accuracy)
     else
         blendLinearGold<float>(img1, img2, weights1, weights2, result_gold);
 
-    EXPECT_MAT_NEAR(result_gold, result, CV_MAT_DEPTH(type) == CV_8U ? 1.f : 1e-5f, 0);
+    EXPECT_MAT_NEAR(result_gold, result, CV_MAT_DEPTH(type) == CV_8U ? 1.f : 1e-5f);
 }
 
 INSTANTIATE_TEST_CASE_P(GPU_ImgProc, Blend, Combine(
diff --git a/modules/ocl/test/test_calib3d.cpp b/modules/ocl/test/test_calib3d.cpp
index 179829e0e6..4c635682c9 100644
--- a/modules/ocl/test/test_calib3d.cpp
+++ b/modules/ocl/test/test_calib3d.cpp
@@ -129,7 +129,7 @@ TEST_P(StereoMatchBP, Regression)
     bp(d_left, d_right, d_disp);
     d_disp.download(disp);
     disp.convertTo(disp, disp_gold.depth());
-    EXPECT_MAT_NEAR(disp_gold, disp, 0.0, "");
+    EXPECT_MAT_NEAR(disp_gold, disp, 0.0);
 }
 INSTANTIATE_TEST_CASE_P(OCL_Calib3D, StereoMatchBP, testing::Combine(testing::Values(64),
     testing::Values(8),testing::Values(2),testing::Values(25.0f),
diff --git a/modules/ocl/test/test_color.cpp b/modules/ocl/test/test_color.cpp
index 202967b7a6..9748104de6 100644
--- a/modules/ocl/test/test_color.cpp
+++ b/modules/ocl/test/test_color.cpp
@@ -100,7 +100,7 @@ PARAM_TEST_CASE(CvtColor, cv::Size, MatDepth)
     cv::cvtColor(src, dst_gold, CVTCODE(name));\
     cv::Mat dst_mat;\
     dst.download(dst_mat);\
-    EXPECT_MAT_NEAR(dst_gold, dst_mat, 1e-5, "");\
+    EXPECT_MAT_NEAR(dst_gold, dst_mat, 1e-5);\
 }
 
 //add new ones here using macro
@@ -141,7 +141,7 @@ TEST_P(CvtColor_Gray2RGB, Accuracy)
     cv::cvtColor(src, dst_gold, code);
     cv::Mat dst_mat;
     dst.download(dst_mat);
-    EXPECT_MAT_NEAR(dst_gold, dst_mat, 1e-5, "");
+    EXPECT_MAT_NEAR(dst_gold, dst_mat, 1e-5);
 }
 
 
@@ -171,7 +171,7 @@ TEST_P(CvtColor_YUV420, Accuracy)
     cv::Mat dst_mat;
     dst.download(dst_mat);
     MAT_DIFF(dst_mat, dst_gold);
-    EXPECT_MAT_NEAR(dst_gold, dst_mat, 1e-5, "");
+    EXPECT_MAT_NEAR(dst_gold, dst_mat, 1e-5);
 }
 
 INSTANTIATE_TEST_CASE_P(OCL_ImgProc, CvtColor, testing::Combine(
diff --git a/modules/ocl/test/test_filters.cpp b/modules/ocl/test/test_filters.cpp
index cf36360a56..316076cc35 100644
--- a/modules/ocl/test/test_filters.cpp
+++ b/modules/ocl/test/test_filters.cpp
@@ -127,7 +127,7 @@ PARAM_TEST_CASE(FilterTestBase,
     {
         cv::Mat cpu_dst;
         gdst_whole.download(cpu_dst);
-        EXPECT_MAT_NEAR(dst, cpu_dst, threshold, "");
+        EXPECT_MAT_NEAR(dst, cpu_dst, threshold);
     }
 };
 
diff --git a/modules/ocl/test/test_hog.cpp b/modules/ocl/test/test_hog.cpp
index 02cfe65b8a..c95c25fe95 100644
--- a/modules/ocl/test/test_hog.cpp
+++ b/modules/ocl/test/test_hog.cpp
@@ -240,8 +240,7 @@ TEST_P(HOG, Detect)
         }
     }
 
-    char s[100] = {0};
-    EXPECT_MAT_NEAR(cv::Mat(d_comp), cv::Mat(comp), 3, s);
+    EXPECT_MAT_NEAR(cv::Mat(d_comp), cv::Mat(comp), 3);
 }
 
 
diff --git a/modules/ocl/test/test_imgproc.cpp b/modules/ocl/test/test_imgproc.cpp
index 29e246adc2..664f8a3919 100644
--- a/modules/ocl/test/test_imgproc.cpp
+++ b/modules/ocl/test/test_imgproc.cpp
@@ -442,6 +442,13 @@ PARAM_TEST_CASE(ImgprocTestBase, MatType, MatType, MatType, MatType, MatType, bo
             clmask_roi = clmask(Rect(maskx, masky, roicols, roirows));
         }
     }
+
+    void Near(double threshold)
+    {
+        cv::Mat cpu_cldst;
+        cldst.download(cpu_cldst);
+        EXPECT_MAT_NEAR(dst, cpu_cldst, threshold);       
+    }
 };
 ////////////////////////////////equalizeHist//////////////////////////////////////////
 
@@ -461,11 +468,7 @@ TEST_P(equalizeHist, Mat)
             random_roi();
             cv::equalizeHist(mat1_roi, dst_roi);
             cv::ocl::equalizeHist(clmat1_roi, cldst_roi);
-            cv::Mat cpu_cldst;
-            cldst.download(cpu_cldst);
-            char sss[1024];
-            sprintf(sss, "roicols=%d,roirows=%d,src1x=%d,src1y=%d,dstx=%d,dsty=%d,dst1x=%d,dst1y=%d,maskx=%d,masky=%d,src2x=%d,src2y=%d", roicols, roirows, src1x, src1y, dstx, dsty, dst1x, dst1y, maskx, masky, src2x, src2y);
-            EXPECT_MAT_NEAR(dst, cpu_cldst, 1.1, sss);
+            Near(1.1);
         }
     }
 }
@@ -485,7 +488,7 @@ TEST_P(bilateralFilter, Mat)
     int d = 2 * radius + 1;
     double sigmaspace = 20.0;
     int bordertype[] = {cv::BORDER_CONSTANT, cv::BORDER_REPLICATE, cv::BORDER_REFLECT, cv::BORDER_WRAP, cv::BORDER_REFLECT_101};
-    const char *borderstr[] = {"BORDER_CONSTANT", "BORDER_REPLICATE", "BORDER_REFLECT", "BORDER_WRAP", "BORDER_REFLECT_101"};
+    //const char *borderstr[] = {"BORDER_CONSTANT", "BORDER_REPLICATE", "BORDER_REFLECT", "BORDER_WRAP", "BORDER_REFLECT_101"};
 
     if (mat1.depth() != CV_8U || mat1.type() != dst.type())
     {
@@ -514,25 +517,7 @@ TEST_P(bilateralFilter, Mat)
 
                 cv::bilateralFilter(mat1_roi, dst_roi, d, sigmacolor, sigmaspace, bordertype[i] | cv::BORDER_ISOLATED);
                 cv::ocl::bilateralFilter(clmat1_roi, cldst_roi, d, sigmacolor, sigmaspace, bordertype[i] | cv::BORDER_ISOLATED);
-
-                cv::Mat cpu_cldst;
-                cldst.download(cpu_cldst);
-
-
-                char sss[1024];
-                sprintf(sss, "roicols=%d,roirows=%d,src1x=%d,src1y=%d,dstx=%d,dsty=%d,radius=%d,boredertype=%s", roicols, roirows, src1x, src1y, dstx, dsty, radius, borderstr[i]);
-                //for(int i=0;i<dst.rows;i++)
-                //{
-                //	for(int j=0;j<dst.cols*dst.channels();j++)
-                //	{
-                //		if(dst.at<uchar>(i,j)!=cpu_cldst.at<uchar>(i,j))
-                //		cout<< i <<" "<< j <<" "<< (int)dst.at<uchar>(i,j)<<" "<< (int)cpu_cldst.at<uchar>(i,j)<<"  ";
-                //	}
-                //	cout<<endl;
-                //}
-
-                EXPECT_MAT_NEAR(dst, cpu_cldst, 1.0, sss);
-
+                Near(1.);
             }
     }
 }
@@ -546,7 +531,7 @@ struct CopyMakeBorder : ImgprocTestBase {};
 TEST_P(CopyMakeBorder, Mat)
 {
     int bordertype[] = {cv::BORDER_CONSTANT, cv::BORDER_REPLICATE, cv::BORDER_REFLECT, cv::BORDER_WRAP, cv::BORDER_REFLECT_101};
-    const char *borderstr[] = {"BORDER_CONSTANT", "BORDER_REPLICATE", "BORDER_REFLECT", "BORDER_WRAP", "BORDER_REFLECT_101"};
+    //const char *borderstr[] = {"BORDER_CONSTANT", "BORDER_REPLICATE", "BORDER_REFLECT", "BORDER_WRAP", "BORDER_REFLECT_101"};
     cv::RNG &rng = TS::ptr()->get_rng();
     int top = rng.uniform(0, 10);
     int bottom = rng.uniform(0, 10);
@@ -584,24 +569,12 @@ TEST_P(CopyMakeBorder, Mat)
                 cv::Mat cpu_cldst;
 #ifndef RANDOMROI
                 cldst_roi.download(cpu_cldst);
+                EXPECT_MAT_NEAR(dst_roi, cpu_cldst, 0.0);
 #else
                 cldst.download(cpu_cldst);
+                EXPECT_MAT_NEAR(dst, cpu_cldst, 0.0);
 #endif
-                char sss[1024];
-                sprintf(sss, "roicols=%d,roirows=%d,src1x=%d,src1y=%d,dstx=%d,dsty=%d,dst1x=%d,dst1y=%d,top=%d,bottom=%d,left=%d,right=%d, bordertype=%s", roicols, roirows, src1x, src1y, dstx, dsty, dst1x, dst1y, top, bottom, left, right, borderstr[i]);
-#ifndef RANDOMROI
-                EXPECT_MAT_NEAR(dst_roi, cpu_cldst, 0.0, sss);
-#else
-                //for(int i=0;i<dst.rows;i++)
-                //{
-                //for(int j=0;j<dst.cols;j++)
-                //{
-                //	cout<< (int)dst.at<uchar>(i,j)<<" ";
-                //}
-                //cout<<endl;
-                //}
-                EXPECT_MAT_NEAR(dst, cpu_cldst, 0.0, sss);
-#endif
+
             }
     }
 }
@@ -624,14 +597,7 @@ TEST_P(cornerMinEigenVal, Mat)
         int borderType = cv::BORDER_REFLECT;
         cv::cornerMinEigenVal(mat1_roi, dst_roi, blockSize, apertureSize, borderType);
         cv::ocl::cornerMinEigenVal(clmat1_roi, cldst_roi, blockSize, apertureSize, borderType);
-
-
-        cv::Mat cpu_cldst;
-        cldst.download(cpu_cldst);
-
-        char sss[1024];
-        sprintf(sss, "roicols=%d,roirows=%d,src1x=%d,src1y=%d,dstx=%d,dsty=%d,dst1x=%d,dst1y=%d,maskx=%d,masky=%d,src2x=%d,src2y=%d", roicols, roirows, src1x, src1y, dstx, dsty, dst1x, dst1y, maskx, masky, src2x, src2y);
-        EXPECT_MAT_NEAR(dst, cpu_cldst, 1, sss);
+        Near(1.);
     }
 }
 
@@ -654,13 +620,7 @@ TEST_P(cornerHarris, Mat)
         int borderType = cv::BORDER_REFLECT;
         cv::cornerHarris(mat1_roi, dst_roi, blockSize, apertureSize, k, borderType);
         cv::ocl::cornerHarris(clmat1_roi, cldst_roi, blockSize, apertureSize, k, borderType);
-        cv::Mat cpu_cldst;
-        cldst.download(cpu_cldst);
-
-        char sss[1024];
-        sprintf(sss, "roicols=%d,roirows=%d,src1x=%d,src1y=%d,dstx=%d,dsty=%d,dst1x=%d,dst1y=%d,maskx=%d,masky=%d,src2x=%d,src2y=%d", roicols, roirows, src1x, src1y, dstx, dsty, dst1x, dst1y, maskx, masky, src2x, src2y);
-
-        EXPECT_MAT_NEAR(dst, cpu_cldst, 1, sss);
+        Near(1.);
     }
 }
 
@@ -677,15 +637,11 @@ TEST_P(integral, Mat)
 
         cv::ocl::integral(clmat1_roi, cldst_roi, cldst1_roi);
         cv::integral(mat1_roi, dst_roi, dst1_roi);
+        Near(0);
 
-        cv::Mat cpu_cldst, cpu_cldst1;
-        cldst.download(cpu_cldst);
+        cv::Mat cpu_cldst1;
         cldst1.download(cpu_cldst1);
-        char sss[1024];
-        sprintf(sss, "roicols=%d,roirows=%d,src1x=%d,src1y=%d,dstx=%d,dsty=%d,dst1x=%d,dst1y=%d,maskx=%d,masky=%d,src2x=%d,src2y=%d", roicols, roirows, src1x, src1y, dstx, dsty, dst1x, dst1y, maskx, masky, src2x, src2y);
-
-        EXPECT_MAT_NEAR(dst, cpu_cldst, 0.0, sss);
-        EXPECT_MAT_NEAR(dst1, cpu_cldst1, 0.0, sss);
+        EXPECT_MAT_NEAR(dst1, cpu_cldst1, 0.0);
     }
 }
 
@@ -798,10 +754,7 @@ TEST_P(WarpAffine, Mat)
 
         cv::Mat cpu_dst;
         gdst_whole.download(cpu_dst);
-        char sss[1024];
-        sprintf(sss, "src_roicols=%d,src_roirows=%d,dst_roicols=%d,dst_roirows=%d,src1x =%d,src1y=%d,dstx=%d,dsty=%d", src_roicols, src_roirows, dst_roicols, dst_roirows, src1x, src1y, dstx, dsty);
-
-        EXPECT_MAT_NEAR(dst, cpu_dst, 1.0, sss);
+        EXPECT_MAT_NEAR(dst, cpu_dst, 1.0);
     }
 
 }
@@ -830,10 +783,7 @@ TEST_P(WarpPerspective, Mat)
 
         cv::Mat cpu_dst;
         gdst_whole.download(cpu_dst);
-        char sss[1024];
-        sprintf(sss, "src_roicols=%d,src_roirows=%d,dst_roicols=%d,dst_roirows=%d,src1x =%d,src1y=%d,dstx=%d,dsty=%d", src_roicols, src_roirows, dst_roicols, dst_roirows, src1x, src1y, dstx, dsty);
-
-        EXPECT_MAT_NEAR(dst, cpu_dst, 1.0, sss);
+        EXPECT_MAT_NEAR(dst, cpu_dst, 1.0);
     }
 
 }
@@ -994,7 +944,7 @@ TEST_P(Remap, Mat)
         return;
     }
     int bordertype[] = {cv::BORDER_CONSTANT, cv::BORDER_REPLICATE/*,BORDER_REFLECT,BORDER_WRAP,BORDER_REFLECT_101*/};
-    const char *borderstr[] = {"BORDER_CONSTANT", "BORDER_REPLICATE"/*, "BORDER_REFLECT","BORDER_WRAP","BORDER_REFLECT_101"*/};
+    //const char *borderstr[] = {"BORDER_CONSTANT", "BORDER_REPLICATE"/*, "BORDER_REFLECT","BORDER_WRAP","BORDER_REFLECT_101"*/};
     // for(int i = 0; i < sizeof(bordertype)/sizeof(int); i++)
     for(int j = 0; j < LOOP_TIMES; j++)
     {
@@ -1004,13 +954,9 @@ TEST_P(Remap, Mat)
         cv::Mat cpu_dst;
         gdst.download(cpu_dst);
 
-        char sss[1024];
-        sprintf(sss, "src_roicols=%d,src_roirows=%d,dst_roicols=%d,dst_roirows=%d,src1x =%d,src1y=%d,dstx=%d,dsty=%d bordertype=%s", src_roicols, src_roirows, dst_roicols, dst_roirows, srcx, srcy, dstx, dsty, borderstr[0]);
-
-
         if(interpolation == 0)
-            EXPECT_MAT_NEAR(dst, cpu_dst, 1.0, sss);
-        EXPECT_MAT_NEAR(dst, cpu_dst, 2.0, sss);
+            EXPECT_MAT_NEAR(dst, cpu_dst, 1.0);
+        EXPECT_MAT_NEAR(dst, cpu_dst, 2.0);
 
     }
 }
@@ -1134,10 +1080,7 @@ TEST_P(Resize, Mat)
 
         cv::Mat cpu_dst;
         gdst_whole.download(cpu_dst);
-        char sss[1024];
-        sprintf(sss, "src_roicols=%d,src_roirows=%d,dst_roicols=%d,dst_roirows=%d,src1x =%d,src1y=%d,dstx=%d,dsty=%d", src_roicols, src_roirows, dst_roicols, dst_roirows, src1x, src1y, dstx, dsty);
-
-        EXPECT_MAT_NEAR(dst, cpu_dst, 1.0, sss);
+        EXPECT_MAT_NEAR(dst, cpu_dst, 1.0);
     }
 
 }
@@ -1231,12 +1174,7 @@ TEST_P(Threshold, Mat)
 
         cv::Mat cpu_dst;
         gdst_whole.download(cpu_dst);
-
-        //EXPECT_MAT_NEAR(dst, cpu_dst, 1e-5)
-        char sss[1024];
-        sprintf(sss, "roicols=%d,roirows=%d,src1x =%d,src1y=%d,dstx=%d,dsty=%d", roicols, roirows, src1x , src1y, dstx, dsty);
-
-        EXPECT_MAT_NEAR(dst, cpu_dst, 1, sss);
+        EXPECT_MAT_NEAR(dst, cpu_dst, 1);
     }
 
 }
@@ -1342,11 +1280,7 @@ TEST_P(meanShiftFiltering, Mat)
         cv::ocl::meanShiftFiltering(gsrc_roi, gdst_roi, sp, sr, crit);
 
         gdst.download(cpu_gdst);
-
-        char sss[1024];
-        sprintf(sss, "roicols=%d,roirows=%d,srcx=%d,srcy=%d,dstx=%d,dsty=%d\n", roicols, roirows, srcx, srcy, dstx, dsty);
-        EXPECT_MAT_NEAR(dst, cpu_gdst, 0.0, sss);
-
+        EXPECT_MAT_NEAR(dst, cpu_gdst, 0.0);
     }
 }
 
@@ -1368,11 +1302,8 @@ TEST_P(meanShiftProc, Mat)
 
         gdst.download(cpu_gdst);
         gdstCoor.download(cpu_gdstCoor);
-
-        char sss[1024];
-        sprintf(sss, "roicols=%d,roirows=%d,srcx=%d,srcy=%d,dstx=%d,dsty=%d\n", roicols, roirows, srcx, srcy, dstx, dsty);
-        EXPECT_MAT_NEAR(dst, cpu_gdst, 0.0, sss);
-        EXPECT_MAT_NEAR(dstCoor, cpu_gdstCoor, 0.0, sss);
+        EXPECT_MAT_NEAR(dst, cpu_gdst, 0.0);
+        EXPECT_MAT_NEAR(dstCoor, cpu_gdstCoor, 0.0);
     }
 }
 
@@ -1459,10 +1390,7 @@ TEST_P(calcHist, Mat)
         cv::ocl::calcHist(gsrc_roi, gdst_hist);
 
         gdst_hist.download(cpu_hist);
-
-        char sss[1024];
-        sprintf(sss, "roicols=%d,roirows=%d,srcx=%d,srcy=%d\n", roicols, roirows, srcx, srcy);
-        EXPECT_MAT_NEAR(dst_hist, cpu_hist, 0.0, sss);
+        EXPECT_MAT_NEAR(dst_hist, cpu_hist, 0.0);
     }
 }
 
@@ -1599,11 +1527,7 @@ TEST_P(Convolve, Mat)
 
         cv::Mat cpu_dst;
         gdst_whole.download(cpu_dst);
-
-        char sss[1024];
-        sprintf(sss, "roicols=%d,roirows=%d,src1x=%d,src1y=%d,dstx=%d,dsty=%d,src2x=%d,src2y=%d", roicols, roirows, src1x, src1y, dstx, dsty, src2x, src2y);
-
-        EXPECT_MAT_NEAR(dst, cpu_dst, 1e-1, sss);
+        EXPECT_MAT_NEAR(dst, cpu_dst, .1);
 
     }
 }
diff --git a/modules/ocl/test/utility.hpp b/modules/ocl/test/utility.hpp
index 99fd3346d5..9fd0f3fa61 100644
--- a/modules/ocl/test/utility.hpp
+++ b/modules/ocl/test/utility.hpp
@@ -76,20 +76,20 @@ double checkSimilarity(const cv::Mat &m1, const cv::Mat &m2);
     EXPECT_LE(checkNorm(cv::Mat(mat)), eps) \
 }
 
-/*#define EXPECT_MAT_NEAR(mat1, mat2, eps) \
+#define EXPECT_MAT_NEAR(mat1, mat2, eps) \
 { \
    ASSERT_EQ(mat1.type(), mat2.type()); \
    ASSERT_EQ(mat1.size(), mat2.size()); \
    EXPECT_LE(checkNorm(cv::Mat(mat1), cv::Mat(mat2)), eps); \
-}*/
-
+}
+/*
 #define EXPECT_MAT_NEAR(mat1, mat2, eps,s) \
 { \
     ASSERT_EQ(mat1.type(), mat2.type()); \
     ASSERT_EQ(mat1.size(), mat2.size()); \
     EXPECT_LE(checkNorm(cv::Mat(mat1), cv::Mat(mat2)), eps)<<s; \
 }
-
+*/
 #define EXPECT_MAT_SIMILAR(mat1, mat2, eps) \
 { \
     ASSERT_EQ(mat1.type(), mat2.type()); \