private async Task <DescribeResultModel> DescribeImageAsync(string url)
{
if (string.IsNullOrWhiteSpace(url))
{
throw new ArgumentException("message", nameof(url));
}
var result = await _api.DescribeAsync(url)
.ConfigureAwait(false);
if (result == null)
{
return(null);
}
return(new DescribeResultModel
{
Url = url,
Tags = result.Description.Tags.Select(tag => new TagModel
{
Name = tag
}).ToList(),
Caption = string.Join(',', result.Description.Captions.Select(caption => $"{caption.Text} (confidence: {caption.Confidence:N2}"))
});
}
/// <summary>
/// Function to describe an image
/// </summary>
/// <param name="obj"></param>
private async void LoadAndDescribe(object obj)
{
Uri fileUri = new Uri(ImageUrl);
BitmapImage image = new BitmapImage(fileUri);
image.CacheOption = BitmapCacheOption.None;
image.UriSource = fileUri;
ImageSource = image;
try
{
AnalysisResult descriptionResult = await _visionClient.DescribeAsync(ImageUrl, NumberOfDescriptions);
if (descriptionResult != null)
{
Description = PrintDescriptionResult(descriptionResult);
}
}
catch (Exception ex)
{
Debug.WriteLine($"Failed to describe image: {ex.Message}");
}
}