/// <summary>
/// Recognizes the text a shape forms, and updates the
/// shape with the recognition results (the text and the
/// likelihood that the recognition was correct).
///
/// This method does not use the featureSketch argument.
///
/// Postcondition: the shape is of type IO and its Name
/// property tells what text it was recognized as.
/// </summary>
/// <param name="shape">The shape to recognize</param>
/// <param name="featureSketch">Not used.</param>
public override void recognize(Sketch.Shape shape, Featurefy.FeatureSketch featureSketch)
{
// Prepare the shape for recognition
SketchOrInkConverter converter = new SketchOrInkConverter();
_microsoftTextRecognizer.Strokes = converter.convertToInk(shape);
// Try to recognize the shape
RecognitionStatus status;
RecognitionResult result;
result = _microsoftTextRecognizer.Recognize(out status);
// Origanize the results
string shapeName = "";
float probability = 0F;
if ((result != null) && (status == RecognitionStatus.NoError))
{
shapeName = result.TopString;
switch (result.TopConfidence)
{
case RecognitionConfidence.Poor:
probability = .1F;
break;
case RecognitionConfidence.Intermediate:
probability = .5F;
break;
case RecognitionConfidence.Strong:
probability = .9F;
break;
}
}
// Update the shape to reflect these results
if (debug)
{
Console.WriteLine("Found input/output label: " + shapeName + " (confidence = " + probability + ")");
}
shape.setRecognitionResults(LogicDomain.TEXT, probability, shapeName);
}
/// <summary>
/// Read a shape as text
/// </summary>
/// <param name="shape">the shape to recognize</param>
/// <param name="confidence">how confident the reading is</param>
/// <returns>the text string</returns>
public string read(Sketch.Shape shape, out double confidence)
{
// Prepare the shape for recognition
SketchOrInkConverter converter = new SketchOrInkConverter();
_microsoftTextRecognizer.Strokes = converter.convertToInk(shape);
// Try to recognize the shape
RecognitionStatus status;
RecognitionResult result;
lock (_microsoftTextRecognizer)
{
result = _microsoftTextRecognizer.Recognize(out status);
}
// Origanize the results
string shapeName = "";
confidence = 0;
if ((result != null) && (status == RecognitionStatus.NoError))
{
shapeName = result.TopString;
switch (result.TopConfidence)
{
case RecognitionConfidence.Poor:
confidence = .1;
break;
case RecognitionConfidence.Intermediate:
confidence = .5;
break;
case RecognitionConfidence.Strong:
confidence = .9;
break;
}
}
return(shapeName);
}
