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93 lines
2.9 KiB
C++
93 lines
2.9 KiB
C++
/*
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* Copyright (c) 2025 Qualcomm Innovation Center, Inc. All rights reserved.
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "test_precomp.hpp"
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namespace opencv_test { namespace {
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TEST(ThresholdOtsuTest, accuracy)
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{
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applyTestTag(CV_TEST_TAG_FASTCV_SKIP_DSP);
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//Initialize DSP
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int initStatus = cv::fastcv::dsp::fcvdspinit();
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ASSERT_EQ(initStatus, 0) << "Failed to initialize FastCV DSP";
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cv::Mat src;
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src.allocator = cv::fastcv::getQcAllocator();
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cv::imread(cvtest::findDataFile("cv/detectors_descriptors_evaluation/planar/box_in_scene.png"), src, cv::IMREAD_GRAYSCALE);
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ASSERT_FALSE(src.empty()) << "Could not read the image file.";
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cv::Mat dst;
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dst.allocator = cv::fastcv::getQcAllocator();
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bool type = 0;
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cv::fastcv::dsp::thresholdOtsu(src, dst, type);
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// De-Initialize DSP
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cv::fastcv::dsp::fcvdspdeinit();
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EXPECT_FALSE(dst.empty());
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EXPECT_EQ(src.size(), dst.size());
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// Compare the result against the reference cv::threshold function with Otsu's method
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cv::Mat referenceDst;
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cv::threshold(src, referenceDst, 0, 255, cv::THRESH_BINARY | cv::THRESH_OTSU);
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double maxDifference = 10.0;
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cv::Mat diff;
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cv::absdiff(dst, referenceDst, diff);
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double maxVal;
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cv::minMaxLoc(diff, nullptr, &maxVal);
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EXPECT_LE(maxVal, maxDifference) << "The custom threshold result differs from the reference result by more than the acceptable threshold.";
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}
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TEST(ThresholdOtsuTest, inPlaceAccuracy)
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{
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applyTestTag(CV_TEST_TAG_FASTCV_SKIP_DSP);
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// Initialize DSP
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int initStatus = cv::fastcv::dsp::fcvdspinit();
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ASSERT_EQ(initStatus, 0) << "Failed to initialize FastCV DSP";
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cv::Mat src;
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src.allocator = cv::fastcv::getQcAllocator();
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cv::imread(cvtest::findDataFile("cv/detectors_descriptors_evaluation/planar/box_in_scene.png"), src, cv::IMREAD_GRAYSCALE);
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ASSERT_FALSE(src.empty()) << "Could not read the image file.";
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// Use the same buffer for in-place operation
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cv::Mat dst;
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dst.allocator = cv::fastcv::getQcAllocator();
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src.copyTo(dst);
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bool type = false;
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// Call the thresholdOtsu function for in-place operation
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cv::fastcv::dsp::thresholdOtsu(dst, dst, type);
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// De-Initialize DSP
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cv::fastcv::dsp::fcvdspdeinit();
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// Check if the output is not empty
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EXPECT_FALSE(dst.empty());
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EXPECT_EQ(src.size(), dst.size());
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// Compare the result against the reference cv::threshold function with Otsu's method
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cv::Mat referenceDst;
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cv::threshold(src, referenceDst, 0, 255, cv::THRESH_BINARY | cv::THRESH_OTSU);
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double maxDifference = 10.0;
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cv::Mat diff;
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cv::absdiff(dst, referenceDst, diff);
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double maxVal;
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cv::minMaxLoc(diff, nullptr, &maxVal);
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EXPECT_LE(maxVal, maxDifference) << "The in-place threshold result differs from the reference result by more than the acceptable threshold.";
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}
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}} // namespaces opencv_test, ::
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