61 lines
1.3 KiB
C++
61 lines
1.3 KiB
C++
// This file is part of OpenCV project.
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// It is subject to the license terms in the LICENSE file found in the top-level directory
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// of this distribution and at http://opencv.org/license.html.
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#include "test_precomp.hpp"
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#include <bitset>
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namespace opencv_test { namespace {
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class CV_PHashTest : public cvtest::BaseTest
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{
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public:
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CV_PHashTest();
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~CV_PHashTest();
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protected:
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void run(int /* idx */);
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};
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CV_PHashTest::CV_PHashTest(){}
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CV_PHashTest::~CV_PHashTest(){}
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void CV_PHashTest::run(int )
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{
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cv::Mat input(32, 32, CV_8U);
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cv::Mat hash;
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uchar value = 0;
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uchar *inPtr = input.ptr<uchar>(0);
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for(size_t i = 0; i != 32*32; ++i)
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{
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inPtr[i] = value++;
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}
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cv::img_hash::pHash(input, hash);
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bool const expectResult[] =
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{
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1,0,1,1,1,1,1,1,
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0,1,1,1,1,1,1,1,
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1,1,1,1,1,1,1,1,
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0,1,1,1,1,1,1,1,
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1,1,1,1,1,1,1,1,
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0,1,1,1,1,1,1,1,
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1,1,1,1,1,1,1,1,
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0,1,1,1,1,1,1,1,
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};
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uchar const *hashPtr = hash.ptr<uchar>(0);
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for(int i = 0; i != hash.cols; ++i)
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{
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std::bitset<8> const bits = hashPtr[i];
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for(int j = 0; j != 8; ++j)
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{
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EXPECT_EQ(bits[j], expectResult[i*8+j]);
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}
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}
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}
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TEST(average_phash_test, accuracy) { CV_PHashTest test; test.safe_run(); }
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}} // namespace
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