public override async Task <PerformOcrStringResponse> PerformOcr(CognitiveServicesRequest request)
{
var cognitiveServicesRestHttpClient = new CognitiveServicesRestHttpClient();
var restHttpResponse = await cognitiveServicesRestHttpClient.GetRestHttpStringResponse(request);
var performOcrResponse = new PerformOcrStringResponse
{
Success = restHttpResponse.Success,
ImplementedInModule = restHttpResponse.ImplementedInModule,
FailureInformation = restHttpResponse.FailureInformation,
// LinesFound = new List<string>(),
// WordsFound = new List<PerformOcrWordInstance>(),
};
performOcrResponse.LinesFound.Add(CommonFramework.Library.Helpers.JsonHelpers.JsonPrettyPrint(restHttpResponse.RestResponse));
return(performOcrResponse);
}
public override async Task <PerformOcrStringResponse> PerformOcr(CognitiveServicesRequest request)
{
var response = new PerformOcrStringResponse();
try
{
var apiKeyServiceClientCredentials = new ApiKeyServiceClientCredentials(request.EndPointKey1);
var delegatingHandlers = new System.Net.Http.DelegatingHandler[] { };
IComputerVisionClient computerVision = new ComputerVisionClient(
credentials: apiKeyServiceClientCredentials,
handlers: delegatingHandlers)
{
Endpoint = request.EndPoint
};
var contentString = await computerVision.RecognizePrintedTextInStreamAsync(
image : request.ImageStream,
detectOrientation : false,
language : OcrLanguages.En,
cancellationToken : CancellationToken.None);
var resultsLinesFound = new List <string>();
var resultsWordsFound = new List <string>();
foreach (OcrRegion region in contentString.Regions)
{
foreach (OcrLine line in region.Lines)
{
var words = line.Words.Select(word => word.Text).ToList();
resultsWordsFound.AddRange(words);
if (words.Count > 0)
{
resultsLinesFound.Add(string.Join <string>(" ", words));
}
}
}
var wordGrouping =
from word in resultsWordsFound
group word by word
into g
select new { InstanceFound = g.Key, Word = g };
var groupedWordsFound = wordGrouping
.Select(item => new PerformOcrWordInstance
{
Word = item.Word.Key,
Instances = item.Word.Count()
});
response.LinesFound = resultsLinesFound;
response.WordsFound = groupedWordsFound.ToList();
response.Success = true;
}
catch (Exception e)
{
response.FailureInformation = e.Message;
}
return(response);
}
