public async override Task<object> ReadFromStreamAsync(Type type, Stream readStream, HttpContent content, IFormatterLogger formatterLogger)
{
var imageSet = new ImageSet();
var provider = await content.ReadAsMultipartAsync();
//extract model
var modelContent = provider.Contents.FirstOrDefault(c => c.Headers.ContentDisposition.Name.NormalizeName() == "imageset");
if (modelContent != null)
{
imageSet = await modelContent.ReadAsAsync<ImageSet>();
}
if (!imageSet.Images.Any())
{
//try extract from image content
var fileContents = provider.Contents.Where(c => c.Headers.ContentDisposition.Name.NormalizeName().Matches(@"image\d+")).ToList();
foreach (var fileContent in fileContents)
{
imageSet.Images.Add(new Image
{
FileName = fileContent.Headers.ContentDisposition.FileName.NormalizeName(),
MimeType = fileContent.Headers.ContentType.MediaType,
Side = GetSide(fileContent),
ImageData = await fileContent.ReadAsByteArrayAsync()
});
}
}
return imageSet;
}
public Dictionary<string, object> Recognize(ImageSet model)
{
var res = new Dictionary<string, object>();
string condition = model.Name ?? "";
int i = 0;
foreach (var image in model.Images)
{
if (i > 1)
{
break;
}
switch (image.Side)
{
case SideEnum.None:
if (i == 0)
{
condition = string.Concat(condition, "_front");
}
else if (i == 1)
{
condition = string.Concat(condition, "_back");
}
break;
case SideEnum.Front:
condition = string.Concat(condition, "_front");
break;
case SideEnum.Back:
condition = string.Concat(condition, "_back");
break;
}
Logger.Instance.InfoFormat("Start recognize setName: {0}, side: {1}, imageName: {2}, mimeType: {3}, length: {4}, condition: {5}",
!string.IsNullOrEmpty(model.Name) ? model.Name : "n/a",
image.Side,
image.FileName,
image.MimeType,
image.ImageData.Length,
condition);
var dic = RecognitionProcessor.Instance.GetRecognizeData(image.ImageData, condition);
foreach (var d in dic)
{
res.Add(d.Key, d.Value);
}
i++;
}
Logger.Instance.InfoFormat("Return recognize data with {0} key(s)", res.Keys.Count);
return res;
}
public static void Test1()
{
string fileName = "op_1_front.jpg";
System.Drawing.Image imgFile = System.Drawing.Image.FromFile(fileName);
var imageSet = new ImageSet()
{
Name = "op_1",
};
var image = new Image()
{
FileName = fileName,
MimeType = "image/jpeg",
Side = SideEnum.Front,
ImageData = imgFile.ToArray(System.Drawing.Imaging.ImageFormat.Jpeg),
};
imageSet.Images.Add(image);
var multipartContent = new MultipartFormDataContent();
var imageSetJson = JsonConvert.SerializeObject(imageSet, new JsonSerializerSettings
{
ContractResolver = new CamelCasePropertyNamesContractResolver()
});
multipartContent.Add(new StringContent(imageSetJson, Encoding.UTF8, "application/json"), "imageset");
int counter = 0;
foreach (var img in imageSet.Images)
{
var imageContent = new ByteArrayContent(img.ImageData);
imageContent.Headers.ContentType = new MediaTypeHeaderValue(img.MimeType);
imageContent.Headers.Add("Side", img.Side.ToString());
multipartContent.Add(imageContent, "image" + counter++, img.FileName);
}
string url = "http://93.153.125.236/Impresto.Ocr/api/recognize";
//string url = "http://localhost:65000/api/recognize";
var response = new HttpClient()
.PostAsync(url, multipartContent)
.Result;
var responseContent = response.Content.ReadAsStringAsync().Result;
Console.WriteLine(responseContent);
}