C++ (Cpp) Ptr::nextFrame示例

示例#1

文件： test_superres.cpp 项目： bouffa/opencv

void DegradeFrameSource::nextFrame(cv::OutputArray frame)
{
    base_->nextFrame(origFrame_);

    cv::GaussianBlur(origFrame_, blurred_, cv::Size(5, 5), 0);
    cv::resize(blurred_, deg_, cv::Size(), iscale_, iscale_, cv::INTER_NEAREST);

    addGaussNoise(deg_, 10.0);
    addSpikeNoise(deg_, 500);

    cv::superres::arrCopy(deg_, frame);
}

示例#2

文件： test_superres.cpp 项目： bouffa/opencv

void AllignedFrameSource::nextFrame(cv::OutputArray frame)
{
    base_->nextFrame(origFrame_);

    if (origFrame_.rows % scale_ == 0 && origFrame_.cols % scale_ == 0)
    {
        cv::superres::arrCopy(origFrame_, frame);
    }
    else
    {
        cv::Rect ROI(0, 0, (origFrame_.cols / scale_) * scale_, (origFrame_.rows / scale_) * scale_);
        cv::superres::arrCopy(origFrame_(ROI), frame);
    }
}

示例#3

文件： test_superres.cpp 项目： bouffa/opencv

void SuperResolution::RunTest(cv::Ptr<cv::superres::SuperResolution> superRes)
{
    const std::string inputVideoName = cvtest::TS::ptr()->get_data_path() + "car.avi";
    const int scale = 2;
    const int iterations = 100;
    const int temporalAreaRadius = 2;

    ASSERT_FALSE( superRes.empty() );

    const int btvKernelSize = superRes->getInt("btvKernelSize");

    superRes->set("scale", scale);
    superRes->set("iterations", iterations);
    superRes->set("temporalAreaRadius", temporalAreaRadius);

    cv::Ptr<cv::superres::FrameSource> goldSource(new AllignedFrameSource(cv::superres::createFrameSource_Video(inputVideoName), scale));
    cv::Ptr<cv::superres::FrameSource> lowResSource(new DegradeFrameSource(new AllignedFrameSource(cv::superres::createFrameSource_Video(inputVideoName), scale), scale));

    // skip first frame
    cv::Mat frame;

    lowResSource->nextFrame(frame);
    goldSource->nextFrame(frame);

    cv::Rect inner(btvKernelSize, btvKernelSize, frame.cols - 2 * btvKernelSize, frame.rows - 2 * btvKernelSize);

    superRes->setInput(lowResSource);

    double srAvgMSSIM = 0.0;
    const int count = 10;

    cv::Mat goldFrame, superResFrame;
    for (int i = 0; i < count; ++i)
    {
        goldSource->nextFrame(goldFrame);
        ASSERT_FALSE( goldFrame.empty() );

        superRes->nextFrame(superResFrame);
        ASSERT_FALSE( superResFrame.empty() );

        const double srMSSIM = MSSIM(goldFrame(inner), superResFrame);

        srAvgMSSIM += srMSSIM;
    }

    srAvgMSSIM /= count;

    EXPECT_GE( srAvgMSSIM, 0.5 );
}