private bool ClassifyDuplicateSortDronoPhotos(string modelInputFileText, string inputDirText, string outputDirText, BackgroundWorker worker, DoWorkEventArgs e)
{
StatusString = "initializing prediction engine";
int imageClassificationCount = 0;
ImageCountString = imageClassificationCount.ToString();
int highestPercentageReached = 0;
string[] filesToProcess = Directory.GetFiles(inputDirText);
MLContext mlContext = new MLContext();
ITransformer mlModel = mlContext.Model.Load(modelInputFileText, out var modelInputSchema);
var predEngine = mlContext.Model.CreatePredictionEngine <ModelInput, ModelOutput>(mlModel);
foreach (var item in filesToProcess)
{
StatusString = "In Progress";
if (worker.CancellationPending)
{
e.Cancel = true;
}
else
{
ModelInput mip = new ModelInput();
mip.Label = "none";//useful for evaluation section
mip.ImageSource = item;
ModelOutput result = predEngine.Predict(mip);
//Degbugging
string toprintDebugConsole = $"prediction class: {result.Prediction}|| score: {result.Score.FirstOrDefault()}";
System.Diagnostics.Debug.WriteLine(imageClassificationCount++);
System.Diagnostics.Debug.WriteLine(item);
System.Diagnostics.Debug.WriteLine(toprintDebugConsole);
//Updating UI Properties on Predictions
ItemNameString = item;
ClassificationString = result.Prediction;
ScoreString = result.Score.FirstOrDefault().ToString();
ImageCountString = imageClassificationCount.ToString();
//create destination and/or save new file to destination location and prediction
var filename = System.IO.Path.GetFileName(item);
string disclass = System.IO.Path.Combine(outputDirText, result.Prediction);
//TODO: find another way to compare and upload UI on the classifications found from the model.
if (!System.IO.Directory.Exists(disclass))
{
// uiContext.Send(x => ClassificationListOfStrings.Add(result.Prediction.ToString()), null);
uiContext.Post(x => ClassificationListOfStrings.Add(result.Prediction.ToString()), null);
//Dispatcher.CurrentDispatcher.Invoke(new Action(delegate ()
//{
// ClassificationListOfStrings.Add(result.Prediction.ToString());
//}));
//ClassificationListOfStrings.Add(result.Prediction.ToString());
System.IO.Directory.CreateDirectory(disclass);
}
var destfile = System.IO.Path.Combine(disclass, filename);
System.IO.File.Copy(item, destfile, true);
//precentage
int percentComplete =
(int)((float)imageClassificationCount / (float)filesToProcess.Length * 100);
if (percentComplete > highestPercentageReached)
{
highestPercentageReached = percentComplete;
worker.ReportProgress(percentComplete);
}
}
}
return(true);// all files have been classifed and sorted
}
private void UpdateListBox()
{//not using, but storing now to consider using delegate methods for updating UI thread from bgworker. Not tested,
//but considering it as alternative.
ClassificationListOfStrings.Add(_classificationString);
}
