internal async Task ReadImageOcrTextAndTranslate(string toLanguage = "en-US")
{
string inputImageFilePath = Path.Combine(
HelperFunctions.GetSampleDataFullPath(customSettings.SampleDataFolders.PhotosToAnalyzeFolder),
customSettings.SampleIndividualFiles.PhotoFileToProcess
);
string fileNamePrefix = Path.GetFileName(inputImageFilePath);
string outFolder = HelperFunctions.GetSampleDataFullPath(customSettings.SampleDataFolders.AnalyzedImagesFolder);
string outBaseFilePath = Path.Combine(outFolder, fileNamePrefix);
// ensure destination Path exists
Directory.CreateDirectory(outFolder);
// OCR - text extraction
// Get vision client
Console.WriteLine($"Extracting Text using Vision OCR from {inputImageFilePath}...");
ComputerVisionClient visionClient = ComputerVision.Authenticate(
customSettings.ComputerVisionSettings.Endpoint,
customSettings.ComputerVisionSettings.Key);
string ocrFilePath = outBaseFilePath + "-ReadOcrResults.txt";
var ocrResult = await ComputerVision.RecognizeTextFromImageLocal(visionClient, inputImageFilePath, false);
var ocrLineTexts = ComputerVisionHelper.GetOcrResultLineTexts(ocrResult);
await File.WriteAllLinesAsync(ocrFilePath, ocrLineTexts);
Console.WriteLine($"Generated OCR output file {ocrFilePath}.");
Console.WriteLine();
// Detect Languages using Text Analytics Api
TextAnalyticsClient textClient = TextAnalytics.GetClient(
customSettings.TextAnalyticsSettings.Key,
customSettings.TextAnalyticsSettings.Endpoint
);
Console.WriteLine("Detect the language from generated OCR text using TextAnalytics...");
IEnumerable <string> sourceLanguages = await TextAnalytics.DetectLanguageBatchAsync(textClient, ocrLineTexts);
//Console.WriteLine($"Detected languages Count: {sourceLanguages.Count()}");
//Console.WriteLine($"Detected Languages: {string.Join(", ", sourceLanguages)}");
Console.WriteLine();
// Now translate the extracted text (OCR) to output language (here default is English)
Console.WriteLine($"Now translate the generated OCR file to English {toLanguage}...");
string ocrText = await File.ReadAllTextAsync(ocrFilePath);
string translatedText = await JournalHelper.Translator.Translate.TranslateTextRequestAsync(
customSettings.TranslatorConfigSettings.Key,
customSettings.TranslatorConfigSettings.Endpoint,
toLanguage,
ocrText
);
string outTranslatedFilePath = outBaseFilePath + "-translated-" + toLanguage + ".json";
if (!translatedText.StartsWith("["))
{
Console.WriteLine($"Storing the generated translation output to file: {outTranslatedFilePath}... ");
var json = JObject.Parse(translatedText);
Helper.WriteToJsonFile <JObject>(outTranslatedFilePath, json);
if (json.ContainsKey("error"))
{
Console.WriteLine($"\t\t\tTRANSLATOR ERROR: {json["error"]["code"]}");
Console.WriteLine($"\t\t\tMESSAGE: {json["error"]["message"]}");
return;
}
}
string txtFile = outTranslatedFilePath + ".txt";
Console.WriteLine($"Generating txt file with translated texts - {txtFile}");
IEnumerable <string> texts = JournalHelper.Translator.Translate.GetTranslatedTexts(translatedText);
await File.WriteAllLinesAsync(txtFile, texts);
Console.WriteLine();
}
