vendor: OpenCV 5.0.0 snapshot at 755e50675d97db9b7d449d8bd6b09888646f6c6e

2026-08-22 00:11:13 +08:00
commit 12022378a3
3872 changed files with 2513409 additions and 0 deletions
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ * SPDX-License-Identifier: Apache-2.0
+*/
+
+#include "test_precomp.hpp"
+
+namespace opencv_test { namespace {
+
+class FFTExtTest : public ::testing::TestWithParam<cv::Size> {};
+
+TEST_P(FFTExtTest, forward)
+{
+    Size size = GetParam();
+
+    RNG& rng = cv::theRNG();
+    Mat src(size, CV_8UC1);
+    cvtest::randUni(rng, src, Scalar::all(0), Scalar::all(256));
+
+    Mat srcFloat;
+    src.convertTo(srcFloat, CV_32F);
+
+    Mat dst, ref;
+    cv::fastcv::FFT(src, dst);
+
+    cv::dft(srcFloat, ref, DFT_COMPLEX_OUTPUT);
+
+    double normInf = cvtest::norm(dst, ref, cv::NORM_INF);
+    double normL2  = cvtest::norm(dst, ref, cv::NORM_L2)  / dst.size().area();
+
+    EXPECT_LT(normInf, 19.1); // for 512x512 case
+    EXPECT_LT(normL2, 18.0 / 256.0 );
+}
+
+TEST_P(FFTExtTest, inverse)
+{
+    Size size = GetParam();
+
+    RNG& rng = cv::theRNG();
+    Mat src(size, CV_8UC1);
+    cvtest::randUni(rng, src, Scalar::all(0), Scalar::all(256));
+
+    Mat srcFloat;
+    src.convertTo(srcFloat, CV_32F);
+
+    Mat fwd, back;
+    cv::fastcv::FFT(src, fwd);
+    cv::fastcv::IFFT(fwd, back);
+    Mat backFloat;
+    back.convertTo(backFloat, CV_32F);
+
+    Mat fwdRef, backRef;
+    cv::dft(srcFloat, fwdRef, DFT_COMPLEX_OUTPUT);
+    cv::idft(fwdRef, backRef, DFT_REAL_OUTPUT);
+
+    backRef *= 1./(src.size().area());
+
+    double normInf = cvtest::norm(backFloat, backRef, cv::NORM_INF);
+    double normL2  = cvtest::norm(backFloat, backRef, cv::NORM_L2)  / src.size().area();
+
+    EXPECT_LT(normInf, 9.16e-05);
+    EXPECT_LT(normL2,  1.228e-06);
+}
+
+INSTANTIATE_TEST_CASE_P(FastCV_Extension, FFTExtTest, ::testing::Values(Size(8, 8), Size(128, 128), Size(32, 256), Size(512, 512),
+                                                                        Size(32, 1), Size(512, 1)));
+
+}} // namespaces opencv_test, ::