public static async Task <IEnumerable <ImageTag> > GetTagsAsync(MediaFile image)
{
var subscriptionKey = CognitiveKey.GetCognitiveKey();
// Specify the features to return
List <VisualFeatureTypes> features = new List <VisualFeatureTypes> {
VisualFeatureTypes.Tags
};
ComputerVisionClient computerVision = new ComputerVisionClient(
new ApiKeyServiceClientCredentials(subscriptionKey),
new System.Net.Http.DelegatingHandler[] { })
{
// You must use the same region as you used to get your subscription
// keys. For example, if you got your subscription keys from westus,
// replace "westcentralus" with "westus".
// Specify the Azure region
Endpoint = "https://eastus.api.cognitive.microsoft.com"
};
// Analyze Images
using (Stream imageStream = image.GetStream())
{
var analysis = await computerVision.AnalyzeImageInStreamAsync(imageStream, features);
return(analysis.Tags);
}
}
public static async Task <IList <DetectedFace> > ProcessImageAsync(MediaFile image)
{
var subscriptionKey = CognitiveKey.GetFaceKey();
// Replace or verify the region.
//
// You must use the same region as you used to obtain your subscription
// keys. For example, if you obtained your subscription keys from the
// westus region, replace "Westcentralus" with "Westus".
//
// NOTE: Free trial subscription keys are generated in the westcentralus
// region, so if you are using a free trial subscription key, you should
// not need to change this region.
var faceEndpoint = "https://eastus.api.cognitive.microsoft.com";
var faceClient = new FaceClient(
new ApiKeyServiceClientCredentials(subscriptionKey),
new System.Net.Http.DelegatingHandler[] { })
{
Endpoint = faceEndpoint
};
// The list of detected faces.
IList <DetectedFace> faceList;
// The list of descriptions for the detected faces.
//string[] faceDescriptions;
// The resize factor for the displayed image.
//double resizeFactor;
// The list of Face attributes to return.
IList <FaceAttributeType> faceAttributes =
new FaceAttributeType[]
{
FaceAttributeType.Gender, FaceAttributeType.Age,
FaceAttributeType.Smile, FaceAttributeType.Emotion,
FaceAttributeType.Glasses, FaceAttributeType.Hair
};
// Call the Face API.
try
{
using (Stream imageFileStream = image.GetStream())
{
// The second argument specifies to return the faceId, while
// the third argument specifies not to return face landmarks.
faceList = await faceClient.Face.DetectWithStreamAsync(
imageFileStream, true, false, faceAttributes);
}
}
// Catch and display Face API errors.
catch (APIErrorException e)
{
// TODO Do better
Console.WriteLine(e);
faceList = new List <DetectedFace>();
}
// Catch and display all other errors.
catch (Exception e)
{
// TODO Do better
Console.WriteLine(e);
faceList = new List <DetectedFace>();
}
return(faceList);
}
