public static Image DrawSonogram(BaseSonogram sonogram, IEnumerable <EventCommon> events)
{
var image = new Image_MultiTrack(sonogram.GetImage(false, true, doMelScale: false));
image.AddTrack(ImageTrack.GetTimeTrack(sonogram.Duration, sonogram.FramesPerSecond));
////image.AddTrack(ImageTrack.GetWavEnvelopeTrack(sonogram, image.sonogramImage.Width));
image.AddTrack(ImageTrack.GetSegmentationTrack(sonogram));
//############################################################################################ TODO TODO
//convert blob events to acoustic events for drawing purposes
var aeEvents = new List <AcousticEvent>();
foreach (var be in events)
{
aeEvents.Add(EventConverters.ConvertSpectralEventToAcousticEvent((SpectralEvent)be));
}
image.AddEvents(
aeEvents,
sonogram.NyquistFrequency,
sonogram.Configuration.FreqBinCount,
sonogram.FramesPerSecond);
return(image.GetImage());
}
/// <summary>
/// Detect using EPR.
/// </summary>
/// <param name="wavFilePath">
/// The wav file path.
/// </param>
/// <param name="eprNormalisedMinScore">
/// The epr Normalised Min Score.
/// </param>
/// <returns>
/// Tuple containing base Sonogram and list of acoustic events.
/// </returns>
public static Tuple <BaseSonogram, List <AcousticEvent> > Detect(FileInfo wavFilePath, Aed.AedConfiguration aedConfiguration, double eprNormalisedMinScore, TimeSpan segmentStartOffset)
{
Tuple <EventCommon[], AudioRecording, BaseSonogram> aed = Aed.Detect(wavFilePath, aedConfiguration, segmentStartOffset);
var events = aed.Item1;
var newEvents = new List <AcousticEvent>();
foreach (var be in events)
{
newEvents.Add(EventConverters.ConvertSpectralEventToAcousticEvent((SpectralEvent)be));
}
var aeEvents = newEvents.Select(ae => Util.fcornersToRect(ae.TimeStart, ae.TimeEnd, ae.HighFrequencyHertz, ae.LowFrequencyHertz)).ToList();
Log.Debug("EPR start");
var eprRects = EventPatternRecog.DetectGroundParrots(aeEvents, eprNormalisedMinScore);
Log.Debug("EPR finished");
var sonogram = aed.Item3;
SonogramConfig config = sonogram.Configuration;
double framesPerSec = 1 / config.GetFrameOffset(); // Surely this should go somewhere else
double freqBinWidth = config.NyquistFreq / (double)config.FreqBinCount;
// TODO this is common with AED
var eprEvents = new List <AcousticEvent>();
foreach (var rectScore in eprRects)
{
var ae = new AcousticEvent(
segmentStartOffset,
rectScore.Item1.Left,
rectScore.Item1.Right - rectScore.Item1.Left,
rectScore.Item1.Bottom,
rectScore.Item1.Top);
ae.SetTimeAndFreqScales(framesPerSec, freqBinWidth);
ae.SetTimeAndFreqScales(sonogram.NyquistFrequency, sonogram.Configuration.WindowSize, 0);
ae.SetScores(rectScore.Item2, 0, 1);
ae.BorderColour = aedConfiguration.AedEventColor;
ae.SegmentStartSeconds = segmentStartOffset.TotalSeconds;
ae.SegmentDurationSeconds = aed.Item2.Duration.TotalSeconds;
eprEvents.Add(ae);
}
return(Tuple.Create(sonogram, eprEvents));
}