Method exportScoresToFile

src/aliceVision/keyframe/KeyframeSelector.cpp:796–843

}

bool KeyframeSelector::exportScoresToFile(const std::string& filename, const bool exportSelectedFrames) const
{
    std::size_t sequenceSize = scoresMap.begin()->second->size();
    if (sequenceSize == 0)
    {
        ALICEVISION_LOG_ERROR("Nothing to export, scores do not seem to have been computed!");
        return false;
    }

    std::ofstream os;
    os.open((fs::path(_outputFolder) / filename).string(), std::ios::app);

    if (!os.is_open())
    {
        ALICEVISION_LOG_ERROR("Unable to open the scores file: " << filename << ".");
        return false;
    }

    ALICEVISION_LOG_DEBUG("Exporting scores as CSV file: " << filename << " (export selected frames: " << exportSelectedFrames << ")");

    os.seekp(0, std::ios::end);  // Put the cursor at the end of the file
    if (os.tellp() == std::streampos(0))
    {  // 'tellp' returns the cursor's position
        // If the file does not exist yet, add a header
        std::string header = "FrameNb;";
        for (const auto& mapIterator : scoresMap)
            header += mapIterator.first + ";";

        if (exportSelectedFrames)
            header += "Selected;";

        os << header << "\n";
    }

    for (std::size_t index = 0; index < sequenceSize; ++index)
    {
        os << index << ";";  // First column: frame index

        for (const auto& mapIterator : scoresMap)
            os << mapIterator.second->at(index) << ";";
        if (exportSelectedFrames)
            os << _selectedFrames.at(index);
        os << "\n";
    }

    os.close();
    return true;
}

bool KeyframeSelector::exportFlowVisualisation(const std::size_t rescaledWidth)
{