public IEnumerable <Rectangle> ExtractFaces()
{
if (_facesResponse == null)
{
var facesRequest = new DetectFacesRequest()
{
Image = _rekognitionImage
};
_facesResponse = _client.DetectFacesAsync(facesRequest).Result;
}
return(_facesResponse.FaceDetails.Select(f =>
AmazonRekognitionCoordinateTranslator.RelativeBoxToAbsolute(f.BoundingBox, _width, _height)));
}
public IEnumerable <Rectangle> ExtractText()
{
if (_textResponse == null)
{
var textRequest = new DetectTextRequest()
{
Image = _rekognitionImage
};
_textResponse = _client.DetectTextAsync(textRequest).Result;
}
return(_textResponse.TextDetections.Select(t => t.Geometry.Polygon)
.Select(p => AmazonRekognitionCoordinateTranslator.RelativePolygonToAbsolute(p, _width,
_height)));
}
public IEnumerable <Rectangle> ExtractLicensePlates()
{
if (_objectsResponse == null)
{
var objectsRequest = new DetectLabelsRequest()
{
Image = _rekognitionImage
};
_objectsResponse = _client.DetectLabelsAsync(objectsRequest).Result;
}
return(_objectsResponse.Labels.Where(l => l.Name == "License Plate")
.SelectMany(l => l.Instances).Select(i =>
AmazonRekognitionCoordinateTranslator.RelativeBoxToAbsolute(i.BoundingBox, _width,
_height)));
}
