public async Task <FighterType?> GetFighterTypeAsync(Stream fighterImage)
{
var image = await Image.FromStreamAsync(fighterImage);
if (!await IsImageSafe(image))
{
_logger.LogInformation("User uploaded inappropriate image");
return(null);
}
var annotations = await _annotator.DetectLabelsAsync(image);
if (annotations.Any(a => a.Description.ToLower() == "dog" && a.Score > 0.9f))
{
return(FighterType.Dog);
}
if (annotations.Any(a => a.Description.ToLower() == "cat" && a.Score > 0.9f))
{
return(FighterType.Cat);
}
_logger.LogInformation($"User uploaded an image different than a dog or a cat. ({annotations?[0].Description})");
return(null);
}
public async Task <List <string> > LabelImage(byte[] imgBytes)
{
try
{
List <string> lstLabels = new List <string>();
Image googleImage = Image.FromBytes(imgBytes);
IReadOnlyList <EntityAnnotation> labels = await client.DetectLabelsAsync(googleImage);
foreach (EntityAnnotation label in labels)
{
if (label.Score >= _confidenceThreshold)
{
lstLabels.Add(label.Description);
}
}
return(lstLabels);
}
catch (Exception ex)
{
_logger.Error("Error getting info from Google", ex);
return(null);
}
}
/// <summary>
/// Get all tag for this picture
/// </summary>
/// <param name="imageFile">Picture base 64</param>
/// <param name="extension">Extension picture</param>
/// <returns>All tag with over 70% of prediction</returns>
public async Task <List <EntityAnnotation> > GetTags(string imageFile, string extension)
{
IReadOnlyList <EntityAnnotation> labels = await clientGoogle.DetectLabelsAsync(Image.FromBytes(ImageConverter.Base64ToByte(imageFile.Replace($"data:image/{extension};base64,", ""))));
return(labels.Where(l => l.Score * 100 >= 70).ToList());
}