public static async Task <CloudQueueMessage> Run(
[QueueTrigger("to-ascii-conversion")] AsciiArtRequest request,
[Blob("%input-container%/{BlobRef}", FileAccess.Read)] Stream inBlob,
[Blob("%output-container%/{BlobRef}", FileAccess.Write)] Stream outBlob,
TraceWriter log)
{
log.Info("(Fun3) Starting to convert image to ASCII art...");
var convertedImage = ConvertImageToAscii(inBlob, request.Width);
await outBlob.WriteAsync(convertedImage, 0, convertedImage.Length);
var result = new AsciiArtResult(request.BlobRef,
ConfigurationManager.AppSettings["output-container"],
request.Description,
request.Tags);
log.Info("(Fun3) Finished converting image.");
return(result.AsQueueItem());
}
public static async Task <CloudQueueMessage> Run(
[ServiceBusTrigger("mytopic", "to-ascii", AccessRights.Manage)] AnalysisReq request,
[Blob("%input-container%/{BlobRef}", FileAccess.Read)] Stream inBlob,
TraceWriter log)
{
log.Info("(Fun2) Running image analysis...");
var subscriptionKey = ConfigurationManager.AppSettings["cognitive-services-key"];
var serviceUri = ConfigurationManager.AppSettings["cognitive-services-uri"];
var client = new ComputerVisionClient(new ApiKeyServiceClientCredentials(subscriptionKey))
{
Endpoint = serviceUri
};
var result = await client.AnalyzeImageInStreamAsync(inBlob,
new[]
{
VisualFeatureTypes.Categories,
VisualFeatureTypes.Color,
VisualFeatureTypes.Description,
VisualFeatureTypes.Faces,
VisualFeatureTypes.ImageType,
VisualFeatureTypes.Tags
});
var asciiArtRequest = new AsciiArtRequest
{
BlobRef = request.BlobRef,
Width = request.Width,
Description = string.Join(",", result.Description.Captions.Select(c => c.Text)),
Tags = result.Tags.Select(t => t.Name).ToArray()
};
log.Info("(Fun2) Finished image analysis.");
return(asciiArtRequest.AsQueueItem());
}
