public static CIDetector CreateFaceDetector(CIContext context, bool highAccuracy)
{
// TypeFace is the only detector supported now
using (var options = NSDictionary.FromObjectsAndKeys (new NSObject [] { highAccuracy ? AccuracyHigh : AccuracyLow },
new NSObject [] { Accuracy }))
return FromType (TypeFace, context, options);
}
public static CIDetector CreateFaceDetector(CIContext context, FaceDetectorAccuracy? accuracy = null, float? minFeatureSize = null, bool? trackingEnabled = null)
{
CIDetectorOptions dopt = new CIDetectorOptions () {
Accuracy = accuracy,
MinFeatureSize = minFeatureSize,
TrackingEnabled = trackingEnabled
};
using (var options = dopt.ToDictionary ())
return FromType (TypeFace, context, options);
}
public static CIDetector CreateFaceDetector(CIContext context, bool highAccuracy, float minFeatureSize)
{
// MinFeatureSize exists only in iOS6+, before this the field is null (and would throw if used)
if (MinFeatureSize == null)
return CreateFaceDetector (context, highAccuracy);
// TypeFace is the only detector supported now
using (var options = NSDictionary.FromObjectsAndKeys (new NSObject [] { highAccuracy ? AccuracyHigh : AccuracyLow, new NSNumber (minFeatureSize) },
new NSObject [] { Accuracy, MinFeatureSize, }))
return FromType (TypeFace, context, options);
}
public static CIDetector CreateRectangleDetector(CIContext context, CIDetectorOptions detectorOptions)
{
using (var options = detectorOptions == null ? null : detectorOptions.ToDictionary ())
return FromType (TypeRectangle, context, options);
}
public static CIDetector CreateTextDetector(CIContext context, CIDetectorOptions detectorOptions)
{
using (var options = detectorOptions == null ? null : detectorOptions.ToDictionary())
return(FromType(TypeText, context, options));
}
