private static ImagePredictionResultModel ProcessImagePredictions(string imageUrl, Guid projectId)
{
string predictionKey = "6c9f96aa9a574ab8b3aa18f5e0ec4c1c";
var shouldAlert = false;
// Create a prediction endpoint, passing in a prediction credentials object that contains the obtained prediction key
PredictionEndpointCredentials predictionEndpointCredentials = new PredictionEndpointCredentials(predictionKey);
PredictionEndpoint endpoint = new PredictionEndpoint(predictionEndpointCredentials);
// Make a prediction against the new project
var result = endpoint.PredictImageUrl(projectId, new Microsoft.Cognitive.CustomVision.Models.ImageUrl(imageUrl));
// Need to throttle the requests as to not upset it into throwing the dreaded 429 too many requests in a given period of time
Thread.Sleep(200);
//check for any probabilities greater than 90%
shouldAlert = result.Predictions.Any(x => x.Probability > .9);
if (shouldAlert)
{
return(result);
}
else
{
return(null);
}
}
static void EfetuarTesteImagem(string caminho, bool eURL)
{
string chaveAPI = "0c91a890892d40a0ba9f9e22a5e358de";
string chaveProjeto = "4a1a0670-7689-4d01-ac59-fc56227cc3ed";
// Crio o client do Custom View Service.
PredictionEndpoint endpoint = new PredictionEndpoint()
{
ApiKey = chaveAPI
};
ImagePrediction resultado = null;
// Verifico se o projeto é uma URL ou um arquivo local para usar o método correto.
if (eURL)
{
resultado = endpoint.PredictImageUrl(new Guid(chaveProjeto), new ImageUrl(caminho));
}
else
{
resultado = endpoint.PredictImage(new Guid(chaveProjeto), File.OpenRead(caminho));
}
// Percorro as analises.
foreach (var possibilidade in resultado.Predictions)
{
Console.WriteLine($"Tag: {possibilidade.TagName}");
Console.WriteLine($"Possibilidade: {possibilidade.Probability:P1}");
}
}
public static IActionResult Run([HttpTrigger(AuthorizationLevel.Anonymous, "get", "post", Route = null)] HttpRequest req, TraceWriter log)
{
log.Info("C# HTTP trigger function processed a request.");
try
{
string requestBody = new StreamReader(req.Body).ReadToEnd();
var prediction = JsonConvert.DeserializeObject <Prediction>(requestBody);
var api = new TrainingApi(new TrainingApiCredentials(prediction.TrainingId));
var account = api.GetAccountInfo();
var predictionKey = account.Keys.PredictionKeys.PrimaryKey;
var creds = new PredictionEndpointCredentials(predictionKey);
var endpoint = new PredictionEndpoint(creds);
//This is where we run our prediction against the default iteration
var result = endpoint.PredictImageUrl(new Guid(prediction.ProjectId), new ImageUrl(prediction.ImageUrl));
prediction.Results = new Dictionary <string, decimal>();
// Loop over each prediction and write out the results
foreach (var outcome in result.Predictions)
{
if (outcome.Probability > .70)
{
prediction.Results.Add(outcome.Tag, (decimal)outcome.Probability);
}
}
return((ActionResult) new OkObjectResult(prediction));
}
catch (Exception e)
{
return(new BadRequestObjectResult(e.GetBaseException().Message));
}
}
public static async Task <IActionResult> Run([HttpTrigger(AuthorizationLevel.Anonymous, "get", "post", Route = null)] HttpRequest req, ILogger log, ExecutionContext context)
{
#region Preparation
var imageUrl = req.Query["imageUrl"];
var config = new ConfigurationBuilder()
.SetBasePath(context.FunctionAppDirectory)
.AddJsonFile("local.settings.json", optional: true, reloadOnChange: true)
.AddEnvironmentVariables()
.Build();
var predictionSubscriptionKey = config["predictionSubscriptionKey"];
var predictionProjectId = config["predictionProjectId"];
#endregion
PredictionEndpoint endpoint = new PredictionEndpoint()
{
ApiKey = predictionSubscriptionKey
};
var result = endpoint.PredictImageUrl(Guid.Parse(predictionProjectId), new ImageUrl(imageUrl));
#region Output
return(new OkObjectResult(result));
#endregion
}
private void InvokeCognitive(string photoUrl)
{
PredictionEndpoint endpoint = new PredictionEndpoint()
{
ApiKey = PREDICTION_KEY
};
ImageUrl url = new ImageUrl(photoUrl);
var result = endpoint.PredictImageUrl(new Guid("152a2f03-5840-46b4-acfe-987a8342b47e"), url);
}
private void button1_Click(object sender, EventArgs e)
{
// 変数定義
bool food = false; // "food" タグの有無
string tag = ""; // カテゴリタグ
ImageUrl url = new ImageUrl(textBox1.Text); //TextBoxからURLを取得
var cvEp = new PredictionEndpoint {
ApiKey = "PREDICTION_KEY"
};
var cvGuid = new Guid("PROJECT_ID");
var iterationId = new Guid("iterationId");
try
{
// 画像を判定
var cvResult = cvEp.PredictImageUrl(cvGuid, url, iterationId);
foreach (var item in cvResult.Predictions)
{
if (item.Probability > 0.8)
{
if (item.Tag == "食べ物")
{
food = true;
}
else
{
tag = item.Tag;
break;
}
}
}
if (tag != "")
{
// タグに応じてメッセージをセット
label1.Text = "この写真は " + tag + " です。";
}
else if (food == true)
{
//msg = "I'm not sure what it is ...";
label1.Text = "これは食べ物ってことしか分からないです。";
}
else
{
//msg = "Send me food photo you are eating!";
label1.Text = "食べ物の写真を送ってください。";
}
}
catch (Exception)
{
label1.Text = "エラー";
}
}
public static List <PredictionModel> PredictionImageByUrl(string url)
{
string predictionKey = "c5bda34631dc4e399c3114f35fc7f980";
var projectId = new Guid("9ad813c1-4f29-432a-9c9e-e0c53d51a1e9");
// Create a prediction endpoint, passing in the obtained prediction key
PredictionEndpoint endpoint = new PredictionEndpoint()
{
ApiKey = predictionKey
};
var result = endpoint.PredictImageUrl(projectId, new ImageUrl()
{
Url = url
});
List <PredictionModel> predictions = new List <PredictionModel>();
// Loop over each prediction and write out the results
var filterResult = result.Predictions.Where(p => p.Probability > 0.7).ToList();
foreach (var p in filterResult)
{
predictions.Add(p);
}
return(predictions);
}
static void Main(string[] args)
{
var keys = GetApiKeys();
var trainingApi = new TrainingApi {
ApiKey = keys.TrainingKey
};
var predictionEndpoint = new PredictionEndpoint {
ApiKey = keys.PredictionKey
};
var projects = trainingApi.GetProjects();
var herbProject = projects.FirstOrDefault(p => p.Name == "Herbs");
Console.WriteLine("Press 1 to predict and 2 to train:");
var pathChoice = Console.ReadLine();
if ("1".Equals(pathChoice))
{
Console.WriteLine("Press 1 to predict on a URL or 2 to predict on a local file:");
var predictType = Console.ReadLine();
if ("1".Equals(predictType))
{
Console.WriteLine("Input the URL to an image to test:");
var imageUrl = Console.ReadLine();
if (herbProject != null)
{
var result = predictionEndpoint.PredictImageUrl(herbProject.Id, new Microsoft.Cognitive.CustomVision.Prediction.Models.ImageUrl(imageUrl));
PrintResults(result);
}
}
else
{
Console.WriteLine("Input path to image to test:");
var imagePath = Console.ReadLine();
if (!File.Exists(imagePath))
{
Console.WriteLine("File does not exist. Press enter to exit.");
Console.ReadLine();
return;
}
Console.WriteLine("Image predictions:");
var imageFile = File.OpenRead(imagePath);
if (herbProject != null)
{
var result = predictionEndpoint.PredictImage(herbProject.Id, imageFile);
PrintResults(result);
}
else
{
Console.WriteLine("Project doesn't exist.");
}
}
Console.ReadLine();
}
else
{
Console.WriteLine("Input path to image to train model with:");
var imagePath = Console.ReadLine();
Console.WriteLine("What tag would you give this image? Rosemary, cilantro, or basil?");
var imageTag = Console.ReadLine();
var capitilizedTag = char.ToUpper(imageTag.First()) + imageTag.Substring(1).ToLower();
if (!File.Exists(imagePath))
{
Console.WriteLine("File does not exist. Press enter to exit.");
Console.ReadLine();
return;
}
var imageFile = File.OpenRead(imagePath);
var tags = trainingApi.GetTags(herbProject.Id);
var matchedTag = tags.Tags.FirstOrDefault(t => t.Name == capitilizedTag);
var memoryStream = new MemoryStream();
imageFile.CopyTo(memoryStream);
var fileCreateEntry = new ImageFileCreateEntry(imageFile.Name, memoryStream.ToArray());
var fileCreateBatch = new ImageFileCreateBatch {
Images = new List <ImageFileCreateEntry> {
fileCreateEntry
}, TagIds = new List <Guid> {
matchedTag.Id
}
};
var result = trainingApi.CreateImagesFromFiles(herbProject.Id, fileCreateBatch);
var resultImage = result.Images.FirstOrDefault();
switch (resultImage.Status)
{
case "OKDuplicate":
Console.WriteLine("Image is already used for training. Please use another to train with");
Console.ReadLine();
break;
default:
break;
}
var iteration = trainingApi.TrainProject(herbProject.Id);
while (iteration.Status != "Completed")
{
System.Threading.Thread.Sleep(1000);
iteration = trainingApi.GetIteration(herbProject.Id, iteration.Id);
}
iteration.IsDefault = true;
trainingApi.UpdateIteration(herbProject.Id, iteration.Id, iteration);
Console.WriteLine("Done training!");
Console.ReadLine();
}
}
public static async Task <HttpResponseMessage> Run([HttpTrigger(AuthorizationLevel.Anonymous, "post", Route = "api/MakePrediction")] HttpRequestMessage req, TraceWriter log)
{
try
{
var stream = await req.Content.ReadAsStreamAsync();
var prediction = new Prediction
{
ProjectId = "36f167d1-82e0-45f4-8ddc-ffc6d3fe3a41", //36f167d1-82e0-45f4-8ddc-...
TrainingKey = "c63201c1e627428fb5c5d603430b5f62", //c63201c1e627428fb5c5d6...
TimeStamp = DateTime.UtcNow,
UserId = Guid.NewGuid().ToString(),
ImageUrl = await UploadImageToBlobStorage(stream)
};
var api = new TrainingApi(new TrainingApiCredentials(prediction.TrainingKey));
var account = api.GetAccountInfo();
var predictionKey = account.Keys.PredictionKeys.PrimaryKey;
var creds = new PredictionEndpointCredentials(predictionKey);
var endpoint = new PredictionEndpoint(creds);
//This is where we run our prediction against the default iteration
var result = endpoint.PredictImageUrl(new Guid(prediction.ProjectId), new ImageUrl(prediction.ImageUrl));
prediction.Results = new Dictionary <string, decimal>();
// Loop over each prediction and write out the results
foreach (var outcome in result.Predictions)
{
if (outcome.Probability >= 0.0010)
{
prediction.Results.Add(outcome.Tag, (decimal)outcome.Probability);
}
}
await CosmosDataService.Instance.InsertItemAsync(prediction);
return(req.CreateResponse(HttpStatusCode.OK, prediction));
}
catch (Exception e)
{
var baseException = e.GetBaseException();
var operationException = baseException as HttpOperationException;
var reason = baseException.Message;
if (operationException != null)
{
var jobj = JObject.Parse(operationException.Response.Content);
var code = jobj.GetValue("Code");
if (code != null && !string.IsNullOrWhiteSpace(code.ToString()))
{
reason = code.ToString();
}
}
return(req.CreateErrorResponse(HttpStatusCode.BadRequest, reason));
}
async Task <string> UploadImageToBlobStorage(Stream stream)
{
//Create a new blob block Id
var blobId = Guid.NewGuid().ToString() + ".jpg";
if (_blobContainer == null)
{
//You can set your endpoint here as a string in code or just set it to pull from your App Settings
var containerName = "images";
var endpoint = $"https://mynewstorageaccountblob.blob.core.windows.net/{containerName}/?sv=2017-04-17&ss=b&srt=sco&sp=rwdlac&se=2019-01-06T04:57:40Z&st=2018-01-05T20:57:40Z&spr=https&sig=YE2ZWYTvRax4jRUmBpZSzaCFDd8ZwM3pxSDHYWVn0dY%3D";
_blobContainer = new CloudBlobContainer(new Uri(endpoint));
}
//Create a new block to store this uploaded image data
var blockBlob = _blobContainer.GetBlockBlobReference(blobId);
blockBlob.Properties.ContentType = "image/jpg";
//You can even store metadata with the content
blockBlob.Metadata.Add("createdFor", "This Awesome Hackathon");
//Upload and return the new URL associated w/ this blob content
await blockBlob.UploadFromStreamAsync(stream);
return(blockBlob.StorageUri.PrimaryUri.ToString());
}
}
public static async Task <HttpResponseMessage> Run([HttpTrigger(AuthorizationLevel.Anonymous, "get", "post", Route = null)] HttpRequestMessage req, TraceWriter log)
{
try
{
if (req.Method == HttpMethod.Get)
{
log.Info("C# HTTP trigger function processed a request.");
// parse query parameter
string name = req.GetQueryNameValuePairs()
.FirstOrDefault(q => string.Compare(q.Key, "name", true) == 0)
.Value;
// Get request body
dynamic data = await req.Content.ReadAsAsync <object>();
// Set name to query string or body data
name = name ?? data?.name;
return(name == null
? req.CreateResponse(HttpStatusCode.BadRequest, "Please pass a name on the query string or in the request body")
: req.CreateResponse(HttpStatusCode.OK, "Hello " + name));
}
else if (req.Method == HttpMethod.Post)
{
var stream = await req.Content.ReadAsStreamAsync();
var prediction = new Prediction
{
ProjectId = "7dad5391-6154-4d00-81ed-be1f56964d89", //This is the custom vision project we are predicting against
PredictionKey = "ca5362dcc67c45748973839961f84b8a", //This is the custom vision project's prediction key we are predicting against
TimeStamp = DateTime.UtcNow,
UserId = Guid.NewGuid().ToString(),
ImageUrl = await UploadImageToBlobStorage(stream),
Results = new Dictionary <string, decimal>()
};
var endpoint = new PredictionEndpoint {
ApiKey = prediction.PredictionKey
};
//This is where we run our prediction against the default iteration
var result = endpoint.PredictImageUrl(new Guid(prediction.ProjectId), new ImageUrl(prediction.ImageUrl));
// Loop over each prediction and write out the results
foreach (var outcome in result.Predictions)
{
if (outcome.Probability > .70)
{
prediction.Results.Add(outcome.Tag, (decimal)outcome.Probability);
}
}
await CosmosDataService.Instance.InsertItemAsync(prediction);
return(req.CreateResponse(HttpStatusCode.OK, prediction));
}
else
{
return(req.CreateResponse(HttpStatusCode.BadRequest, "Invalid request.."));
}
}
catch (Exception e)
{
//Catch and unwind any exceptions that might be thrown and return the reason (non-production)
return(req.CreateErrorResponse(HttpStatusCode.BadRequest, e.GetBaseException().Message));
}
async Task <string> UploadImageToBlobStorage(Stream stream)
{
//Create a new blob block Id
var blobId = Guid.NewGuid().ToString() + ".jpg";
if (_blobContainer == null)
{
//You can set your endpoint here as a string in code (ideally this should go in your Function's App Settings)
var containerName = "images";
var endpoint = $"https://fishkillappacctblob.blob.core.windows.net/{containerName}?sv=2017-11-09&ss=b&srt=sco&sp=rwdlac&se=2018-09-29T00:41:11Z&st=2018-09-28T16:41:11Z&spr=https,http&sig=jwlc9vDFgxzmFqDRUqFRKTEEyBobmct0Yed0Wj7zHyA%3D";
_blobContainer = new CloudBlobContainer(new Uri(endpoint));
}
//Create a new block to store this uploaded image data
var blockBlob = _blobContainer.GetBlockBlobReference(blobId);
blockBlob.Properties.ContentType = "image/jpg";
//You can even store metadata with the content
blockBlob.Metadata.Add("createdFor", "This Custom Vision Hackathon");
//Upload and return the new URL associated w/ this blob content
await blockBlob.UploadFromStreamAsync(stream);
return(blockBlob.StorageUri.PrimaryUri.ToString());
}
}
public static HttpResponseMessage Run([HttpTrigger(AuthorizationLevel.Anonymous, "post", Route = nameof(AnalyseCustomImage))]
HttpRequestMessage req, TraceWriter log)
{
using (var analytic = new AnalyticService(new RequestTelemetry
{
Name = nameof(AnalyseCustomImage)
}))
{
try
{
var allTags = new List <string>();
var j = JObject.Parse(req.Content.ReadAsStringAsync().Result);
var imageUrl = (string)j["imageUrl"];
var treasureId = (string)j["treasureId"];
var gameId = (string)j["gameId"];
var game = CosmosDataService.Instance.GetItemAsync <Game>(gameId).Result;
if (game == null)
{
return(req.CreateErrorResponse(HttpStatusCode.NotFound, "Game not found"));
}
var treasure = game.Treasures.SingleOrDefault(t => t.Id == treasureId);
if (treasure == null)
{
return(req.CreateErrorResponse(HttpStatusCode.NotFound, "Treasure not found"));
}
var api = new TrainingApi(new TrainingApiCredentials(ConfigManager.Instance.CustomVisionTrainingKey));
var account = api.GetAccountInfo();
var predictionKey = account.Keys.PredictionKeys.PrimaryKey;
var creds = new PredictionEndpointCredentials(predictionKey);
var endpoint = new PredictionEndpoint(creds);
//This is where we run our prediction against the default iteration
var result = endpoint.PredictImageUrl(new Guid(game.CustomVisionProjectId), new ImageUrl(imageUrl));
bool toReturn = false;
// Loop over each prediction and write out the results
foreach (var outcome in result.Predictions)
{
if (treasure.Attributes.Any(a => a.Name.Equals(outcome.Tag, StringComparison.InvariantCultureIgnoreCase)))
{
if (outcome.Probability >= ConfigManager.Instance.CustomVisionMinimumPredictionProbability)
{
toReturn = true;
break;
}
}
}
return(req.CreateResponse(HttpStatusCode.OK, toReturn));
}
catch (Exception e)
{
analytic.TrackException(e);
return(req.CreateErrorResponse(HttpStatusCode.BadRequest, e));
}
}
}
async public static Task <HttpResponseMessage> Run([HttpTrigger(AuthorizationLevel.Anonymous, "post", Route = nameof(AnalyseCustomImage))]
HttpRequestMessage req, TraceWriter log)
{
using (var analytic = new AnalyticService(new RequestTelemetry
{
Name = nameof(AnalyseCustomImage)
}))
{
try
{
var allTags = new List <string>();
var j = JObject.Parse(req.Content.ReadAsStringAsync().Result);
var imageUrl = (string)j["imageUrl"];
var treasureId = (string)j["treasureId"];
var gameId = (string)j["gameId"];
var game = CosmosDataService.Instance.GetItemAsync <Game>(gameId).Result;
if (game == null)
{
return(req.CreateErrorResponse(HttpStatusCode.NotFound, "Game not found"));
}
var treasure = game.Treasures.SingleOrDefault(t => t.Id == treasureId);
if (treasure == null)
{
var data = new Event("Custom image analyzed for treasure failed");
data.Add("hint", treasure.Hint).Add("source", treasure.ImageSource).Add("sent", imageUrl);
await EventHubService.Instance.SendEvent(data);
return(req.CreateErrorResponse(HttpStatusCode.NotFound, "Treasure not found"));
}
var endpoint = new PredictionEndpoint {
ApiKey = ConfigManager.Instance.CustomVisionPredictionKey
};
//This is where we run our prediction against the default iteration
var result = endpoint.PredictImageUrl(new Guid(game.CustomVisionProjectId), new ImageUrl(imageUrl));
ImageTagPredictionModel goodTag = null;
// Loop over each prediction and write out the results
foreach (var prediction in result.Predictions)
{
if (treasure.Attributes.Any(a => a.Name.Equals(prediction.Tag, StringComparison.InvariantCultureIgnoreCase)))
{
if (prediction.Probability >= ConfigManager.Instance.CustomVisionMinimumPredictionProbability)
{
goodTag = prediction;
break;
}
}
}
{
var outcome = goodTag == null ? "failed" : "succeeded";
var data = new Event($"Custom image analyzed for treasure {outcome}");
if (goodTag != null)
{
data.Add("tags", goodTag.Tag).Add("probability", goodTag.Probability.ToString("P"));
}
data.Add("hint", treasure.Hint).Add("source", treasure.ImageSource).Add("sent", imageUrl);
await EventHubService.Instance.SendEvent(data);
}
return(req.CreateResponse(HttpStatusCode.OK, goodTag != null));
}
catch (Exception e)
{
analytic.TrackException(e);
return(req.CreateErrorResponse(HttpStatusCode.BadRequest, e));
}
}
}
public static async Task <HttpResponseMessage> Run([HttpTrigger(AuthorizationLevel.Anonymous, "post", Route = "api/MakePrediction")] HttpRequestMessage req, TraceWriter log)
{
try
{
var stream = await req.Content.ReadAsStreamAsync();
var prediction = new Prediction
{
ProjectId = "YOUR_PROJECT_ID", //This is the custom vision project we are predicting against
PredictionKey = "YOUR_PREDICTION_KEY", //This is the prediction key we are predicting against
TimeStamp = DateTime.UtcNow,
UserId = Guid.NewGuid().ToString(),
ImageUrl = await UploadImageToBlobStorage(stream),
Results = new Dictionary <string, decimal>()
};
var endpoint = new PredictionEndpoint {
ApiKey = prediction.PredictionKey
};
//This is where we run our prediction against the default iteration
var result = endpoint.PredictImageUrl(new Guid(prediction.ProjectId), new ImageUrl(prediction.ImageUrl));
// Loop over each prediction and write out the results
foreach (var outcome in result.Predictions)
{
if (outcome.Probability > .70)
{
prediction.Results.Add(outcome.Tag, (decimal)outcome.Probability);
}
}
await CosmosDataService.Instance.InsertItemAsync(prediction);
return(req.CreateResponse(HttpStatusCode.OK, prediction));
}
catch (Exception e)
{
var baseException = e.GetBaseException();
var operationException = baseException as HttpOperationException;
var reason = baseException.Message;
if (operationException != null)
{
var jobj = JObject.Parse(operationException.Response.Content);
var code = jobj.GetValue("Code");
if (code != null && !string.IsNullOrWhiteSpace(code.ToString()))
{
reason = code.ToString();
}
}
return(req.CreateErrorResponse(HttpStatusCode.BadRequest, reason));
}
async Task <string> UploadImageToBlobStorage(Stream stream)
{
//Create a new blob block Id
var blobId = Guid.NewGuid().ToString() + ".jpg";
if (_blobContainer == null)
{
//You can set your endpoint here as a string in code or just set it to pull from your App Settings
var containerName = "images";
var endpoint = $"https://YOURSTORAGEACCOUNT.blob.core.windows.net/{containerName}/?sv=2017-04-17&ss=MAKE_SURE_TO_GET_A_SAS_TOKEN-01-06T04:57:40Z&st=2018-01-05T20:57:40Z&spr=https&sig=YE2ZWYTvRax4jRUmBpZSzaCFDd8ZwM3pxSDHYWVn0dY%3D";
_blobContainer = new CloudBlobContainer(new Uri(endpoint));
}
//Create a new block to store this uploaded image data
var blockBlob = _blobContainer.GetBlockBlobReference(blobId);
blockBlob.Properties.ContentType = "image/jpg";
//You can even store metadata with the content
blockBlob.Metadata.Add("createdFor", "This Custom Vision Hackathon");
//Upload and return the new URL associated w/ this blob content
await blockBlob.UploadFromStreamAsync(stream);
return(blockBlob.StorageUri.PrimaryUri.ToString());
}
}
public static async Task <HttpResponseMessage> RunMakePrediction([HttpTrigger(AuthorizationLevel.Anonymous, "post", Route = "api/MakePrediction")] HttpRequestMessage req, TraceWriter log)
{
try
{
//VERSION 1
////Extract the content body of the request
//var stream = await req.Content.ReadAsStreamAsync();
////Retrieve a URL for the image being stored
//var imageUrl = await UploadImageToBlobStorage(stream);
////Return the URL as the response content
//return req.CreateResponse(HttpStatusCode.OK, imageUrl);
//VERSION 2
//========================================================================
// Add this within the try clause
//========================================================================
//var stream = await req.Content.ReadAsStreamAsync();
//var prediction = new Prediction
//{
// TimeStamp = DateTime.UtcNow,
// UserId = Guid.NewGuid().ToString(),
// ImageUrl = await UploadImageToBlobStorage(stream)
//};
//await CosmosDataService.Instance.InsertItemAsync(prediction);
//return req.CreateResponse(HttpStatusCode.OK, prediction);
//VERSION 3
var stream = await req.Content.ReadAsStreamAsync();
var prediction = new Prediction
{
//ProjectId = "YOUR_PROJECT_ID", //This is the custom vision project we are predicting against
//PredictionKey = "YOUR_PREDICTION_KEY", //This is the custom vision project's prediction key we are predicting against
ProjectId = "3e152a33-92ee-4326-b4c9-c8068edab9d8", //"YOUR_PROJECT_ID", //This is the custom vision project we are predicting against
PredictionKey = "eafbd7b247bd41c1afd6d6da352f7099", //"YOUR_PREDICTION_KEY", //This is the custom vision project's prediction key we are predicting against
TimeStamp = DateTime.UtcNow,
UserId = Guid.NewGuid().ToString(),
ImageUrl = await UploadImageToBlobStorage(stream),
Results = new Dictionary <string, decimal>()
};
var endpoint = new PredictionEndpoint {
ApiKey = prediction.PredictionKey
};
//This is where we run our prediction against the default iteration
var result = endpoint.PredictImageUrl(new Guid(prediction.ProjectId), new ImageUrl(prediction.ImageUrl));
// Loop over each prediction and write out the results
foreach (var outcome in result.Predictions)
{
if (outcome.Probability > .70)
{
prediction.Results.Add(outcome.Tag, (decimal)outcome.Probability);
}
}
await CosmosDataService.Instance.InsertItemAsync(prediction);
return(req.CreateResponse(HttpStatusCode.OK, prediction));
}
catch (Exception e)
{
//Catch and unwind any exceptions that might be thrown and return the reason (non-production)
return(req.CreateErrorResponse(HttpStatusCode.BadRequest, e.GetBaseException().Message));
}
async Task <string> UploadImageToBlobStorage(Stream stream)
{
//Create a new blob block Id
var blobId = Guid.NewGuid().ToString() + ".jpg";
if (_blobContainer == null)
{
//You can set your endpoint here as a string in code or just set it to pull from your App Settings
var containerName = "images";
var endpoint = $"https://customvisionrdr.blob.core.windows.net/images?sv=2017-11-09&ss=b&srt=sco&sp=rwdlac&se=2018-09-01T07:03:34Z&st=2018-08-21T23:03:34Z&spr=https&sig=Tdr03QWaQ7vCiy6Ut1G%2Fs05Kaw7iZ3JbhubljsMhKXA%3D";
//var endpoint = $"https://YOURSTORAGEACCOUNT.blob.core.windows.net/{containerName}/?sv=2017-04-17&ss=MAKE_SURE_TO_GET_A_SAS_TOKEN-01-06T04:57:40Z&st=2018-01-05T20:57:40Z&spr=https&sig=YE2ZWYTvRax4jRUmBpZSzaCFDd8ZwM3pxSDHYWVn0dY%3D";
_blobContainer = new CloudBlobContainer(new Uri(endpoint));
}
//Create a new block to store this uploaded image data
var blockBlob = _blobContainer.GetBlockBlobReference(blobId);
blockBlob.Properties.ContentType = "image/jpg";
//You can even store metadata with the content
blockBlob.Metadata.Add("createdFor", "This Custom Vision Hackathon");
//Upload and return the new URL associated w/ this blob content
await blockBlob.UploadFromStreamAsync(stream);
return(blockBlob.StorageUri.PrimaryUri.ToString());
}
}
