vendor: OpenCV 5.0.0 snapshot at 755e50675d97db9b7d449d8bd6b09888646f6c6e

2026-08-22 00:11:13 +08:00
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+/*M///////////////////////////////////////////////////////////////////////////////////////
+//
+//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+//
+//  By downloading, copying, installing or using the software you agree to this license.
+//  If you do not agree to this license, do not download, install,
+//  copy or use the software.
+//
+//
+//                          License Agreement
+//                For Open Source Computer Vision Library
+//
+// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
+// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
+// Copyright (C) 2013, OpenCV Foundation, all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+//   * Redistribution's of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//
+//   * Redistribution's in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//
+//   * The name of the copyright holders may not be used to endorse or promote products
+//     derived from this software without specific prior written permission.
+//
+// This software is provided by the copyright holders and contributors "as is" and
+// any express or implied warranties, including, but not limited to, the implied
+// warranties of merchantability and fitness for a particular purpose are disclaimed.
+// In no event shall the Intel Corporation or contributors be liable for any direct,
+// indirect, incidental, special, exemplary, or consequential damages
+// (including, but not limited to, procurement of substitute goods or services;
+// loss of use, data, or profits; or business interruption) however caused
+// and on any theory of liability, whether in contract, strict liability,
+// or tort (including negligence or otherwise) arising in any way out of
+// the use of this software, even if advised of the possibility of such damage.
+//
+//M*/
+
+#include "test_precomp.hpp"
+
+using namespace cv;
+using namespace cv::cuda;
+using namespace cv::cudev;
+using namespace cvtest;
+
+typedef ::testing::Types<uchar, ushort, short, int, float> AllTypes;
+typedef ::testing::Types<short, float> Fp16Types;
+
+////////////////////////////////////////////////////////////////////////////////
+// CvtTest
+
+template <typename T>
+class CvtTest : public ::testing::Test
+{
+public:
+    void test_gpumat()
+    {
+        const Size size = randomSize(100, 400);
+        const int type = DataType<T>::type;
+
+        Mat src = randomMat(size, type);
+
+        GpuMat_<T> d_src(src);
+
+        GpuMat_<T> dst = cvt_<T>(cvt_<float>(d_src) * 2.0f - 10.0f);
+
+        Mat dst_gold;
+        src.convertTo(dst_gold, src.depth(), 2, -10);
+
+        EXPECT_MAT_NEAR(dst_gold, dst, 0.0);
+    }
+};
+
+// dummy class
+template <typename T>
+class CvFp16Test : public ::testing::Test
+{
+public:
+    void test_gpumat()
+    {
+    }
+};
+
+template <>
+class CvFp16Test <short> : public ::testing::Test
+{
+public:
+    void test_gpumat()
+    {
+        const Size size = randomSize(100, 400);
+        const int type = DataType<float>::type;
+
+        Mat src = randomMat(size, type), dst, ref;
+
+        GpuMat_<float> g_src(src);
+        GpuMat g_dst;
+
+        // Fp32 -> Fp16
+        g_src.convertTo(g_dst, CV_16F);
+        src.convertTo(dst, CV_16F);
+        // Fp16 -> Fp32
+        GpuMat g_tmp = g_dst.clone();
+        g_tmp.convertTo(g_dst, CV_32F);
+        dst.convertTo(ref, CV_32F);
+
+        g_dst.download(dst);
+        EXPECT_MAT_NEAR(dst, ref, 0.0);
+    }
+};
+
+template <>
+class CvFp16Test <float> : public ::testing::Test
+{
+public:
+    void test_gpumat()
+    {
+        const Size size = randomSize(100, 400);
+        const int type = DataType<float>::type;
+
+        Mat src = randomMat(size, type), dst, ref;
+
+        GpuMat_<float> g_src(src);
+        GpuMat g_dst;
+
+        // Fp32 -> Fp16
+        g_src.convertTo(g_dst, CV_16F);
+        src.convertTo(ref, CV_16F);
+
+        g_dst.download(dst);
+        EXPECT_MAT_NEAR(dst, ref, 0.0);
+    }
+};
+
+TYPED_TEST_CASE(CvtTest, AllTypes);
+
+TYPED_TEST(CvtTest, GpuMat)
+{
+    CvtTest<TypeParam>::test_gpumat();
+}
+
+TYPED_TEST_CASE(CvFp16Test, Fp16Types);
+
+TYPED_TEST(CvFp16Test, GpuMat)
+{
+    CvFp16Test<TypeParam>::test_gpumat();
+}