extract_peaks()

std::vector< std::vector< double > > MayaFlux::Yantra::extract_peaks	(	const std::vector< std::span< const double > > &	channels,
		double	threshold,
		double	min_distance,
		uint32_t	region_size
	)

Definition at line 37 of file ExtractionHelper.cpp.

{
    std::vector<std::vector<double>> result;
    result.reserve(channels.size());
    for (const auto& ch : channels) {
        if (ch.size() < 3) {
            result.emplace_back();
            continue;
        }
 
        const auto [lo, hi] = std::ranges::minmax_element(ch);
        if (*hi - *lo < std::numeric_limits<double>::epsilon()) {
            result.emplace_back();
            continue;
        }
        const auto pos = D::peak_positions(ch, threshold, static_cast<size_t>(min_distance));
        result.push_back(D::slice_intervals(ch,
            D::merge_intervals(D::regions_around_positions(pos, region_size / 2, ch.size()))));
    }
 
    return result;
}

References hi, lo, MayaFlux::Kinesis::Discrete::merge_intervals(), MayaFlux::Kinesis::Discrete::peak_positions(), MayaFlux::Kinesis::Discrete::regions_around_positions(), MayaFlux::Kinesis::Discrete::slice_intervals(), and threshold.

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