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
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+/*
+ * Copyright (c) 2025 Qualcomm Innovation Center, Inc. All rights reserved.
+ * SPDX-License-Identifier: Apache-2.0
+*/
+
+#include "test_precomp.hpp"
+
+namespace opencv_test { namespace {
+
+TEST(resizeDownBy2, accuracy)
+{
+    cv::Mat inputImage = cv::imread(cvtest::findDataFile("cv/shared/box_in_scene.png"), cv::IMREAD_GRAYSCALE);
+
+    cv::Mat resized_image;
+
+    cv::fastcv::resizeDown(inputImage, resized_image, cv::Size(inputImage.cols / 2, inputImage.rows / 2), 0, 0);
+
+    EXPECT_FALSE(resized_image.empty());
+
+    cv::Mat resizedImageOpenCV;
+    cv::resize(inputImage, resizedImageOpenCV, cv::Size(inputImage.cols / 2, inputImage.rows / 2), 0, 0, INTER_AREA);
+
+    double maxVal = cv::norm(resized_image, resizedImageOpenCV, cv::NORM_INF);
+
+    CV_Assert(maxVal < 10 && "Difference between images is too high!");
+}
+
+TEST(resizeDownBy4, accuracy)
+{
+    cv::Mat inputImage = cv::imread(cvtest::findDataFile("cv/shared/box_in_scene.png"), cv::IMREAD_GRAYSCALE);
+
+    Size dsize;
+    cv::Mat resized_image;
+
+    cv::fastcv::resizeDown(inputImage, resized_image, dsize, 0.25, 0.25);
+
+    EXPECT_FALSE(resized_image.empty());
+
+    cv::Mat resizedImageOpenCV;
+    cv::resize(inputImage, resizedImageOpenCV, cv::Size(inputImage.cols / 4, inputImage.rows / 4), 0, 0, INTER_AREA);
+
+    double maxVal = cv::norm(resized_image, resizedImageOpenCV, cv::NORM_INF);
+
+    CV_Assert(maxVal < 10 && "Difference between images is too high!");
+}
+
+TEST(resizeDownMN, accuracy)
+{
+    cv::Mat inputImage = cv::imread(cvtest::findDataFile("cv/cascadeandhog/images/class57.png"), cv::IMREAD_GRAYSCALE);
+
+    cv::Mat resized_image;
+
+    cv::fastcv::resizeDown(inputImage, resized_image, cv::Size(800, 640), 0, 0);
+
+    EXPECT_FALSE(resized_image.empty());
+
+    cv::Mat resizedImageOpenCV;
+    cv::resize(inputImage, resizedImageOpenCV, cv::Size(800, 640), 0, 0, INTER_LINEAR);
+
+    double maxVal = cv::norm(resized_image, resizedImageOpenCV, cv::NORM_INF);
+
+    CV_Assert(maxVal < 78 && "Difference between images is too high!");
+}
+
+TEST(resizeDownInterleaved, accuracy)
+{
+    cv::Mat inputImage = cv::Mat::zeros(512, 512, CV_8UC2);
+    cv::randu(inputImage, cv::Scalar(0), cv::Scalar(255));
+
+
+    Size dsize;
+    cv::Mat resized_image;
+
+    cv::fastcv::resizeDown(inputImage, resized_image, dsize, 0.500, 0.125);
+
+    EXPECT_FALSE(resized_image.empty());
+
+
+    cv::Mat resizedImageOpenCV;
+    cv::resize(inputImage, resizedImageOpenCV, dsize, 0.500, 0.125, INTER_AREA);
+
+    double maxVal = cv::norm(resized_image, resizedImageOpenCV, cv::NORM_INF);
+
+    CV_Assert(maxVal < 10 && "Difference between images is too high!");
+}
+
+}} // namespaces opencv_test, ::