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67 lines
2.3 KiB
C++
67 lines
2.3 KiB
C++
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// 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 "perf_precomp.hpp"
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namespace opencv_test { namespace {
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void MakeArtificialExample(Mat &dst_frame1, Mat &dst_frame2);
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typedef tuple<String, Size> DISParams;
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typedef TestBaseWithParam<DISParams> DenseOpticalFlow_DIS;
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PERF_TEST_P(DenseOpticalFlow_DIS, perf,
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Combine(Values("PRESET_ULTRAFAST", "PRESET_FAST", "PRESET_MEDIUM"), Values(szVGA, sz720p, sz1080p)))
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{
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DISParams params = GetParam();
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// use strings to print preset names in the perf test results:
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String preset_string = get<0>(params);
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int preset = DISOpticalFlow::PRESET_FAST;
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if (preset_string == "PRESET_ULTRAFAST")
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preset = DISOpticalFlow::PRESET_ULTRAFAST;
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else if (preset_string == "PRESET_FAST")
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preset = DISOpticalFlow::PRESET_FAST;
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else if (preset_string == "PRESET_MEDIUM")
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preset = DISOpticalFlow::PRESET_MEDIUM;
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Size sz = get<1>(params);
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Mat frame1(sz, CV_8U);
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Mat frame2(sz, CV_8U);
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Mat flow;
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MakeArtificialExample(frame1, frame2);
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TEST_CYCLE_N(10)
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{
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Ptr<DenseOpticalFlow> algo = DISOpticalFlow::create(preset);
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algo->calc(frame1, frame2, flow);
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}
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SANITY_CHECK_NOTHING();
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}
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void MakeArtificialExample(Mat &dst_frame1, Mat &dst_frame2)
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{
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int src_scale = 2;
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int OF_scale = 6;
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double sigma = dst_frame1.cols / 300;
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Mat tmp(Size(dst_frame1.cols / (1 << src_scale), dst_frame1.rows / (1 << src_scale)), CV_8U);
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randu(tmp, 0, 255);
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resize(tmp, dst_frame1, dst_frame1.size(), 0.0, 0.0, INTER_LINEAR_EXACT);
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resize(tmp, dst_frame2, dst_frame2.size(), 0.0, 0.0, INTER_LINEAR_EXACT);
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Mat displacement_field(Size(dst_frame1.cols / (1 << OF_scale), dst_frame1.rows / (1 << OF_scale)),
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CV_32FC2);
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randn(displacement_field, 0.0, sigma);
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resize(displacement_field, displacement_field, dst_frame2.size(), 0.0, 0.0, INTER_CUBIC);
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for (int i = 0; i < displacement_field.rows; i++)
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for (int j = 0; j < displacement_field.cols; j++)
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displacement_field.at<Vec2f>(i, j) += Vec2f((float)j, (float)i);
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remap(dst_frame2, dst_frame2, displacement_field, Mat(), INTER_LINEAR, BORDER_REPLICATE);
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}
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}} // namespace
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