public static async Task <List <IGenericOcrRunner> > GetStandardOcrs(IOcrCache ocrCache,
StandardOcrSettings standardOcrSettings, IImageCompressor imageCompressor)
{
List <IGenericOcrRunner> genericOcrRunners = new List <IGenericOcrRunner>();
var ocrParams = new HighLevelOcrServiceParams {
OcrCache = ocrCache, ImageCompressor = imageCompressor
};
if (standardOcrSettings.AwsOcrSettings != null)
{
var awsSettings = standardOcrSettings.AwsOcrSettings;
genericOcrRunners.Add(new AwsOcrService(awsSettings.AccessKey, awsSettings.SecretKey, awsSettings.Region, ocrParams));
}
if (standardOcrSettings.AzureOcrSettings != null)
{
var azureSettings = standardOcrSettings.AzureOcrSettings;
genericOcrRunners.Add(new AzureOcrService(azureSettings.SubscriptionKey, azureSettings.Endpoint, ocrParams));
}
if (standardOcrSettings.GoogleOcrSettings != null)
{
var googleSettings = standardOcrSettings.GoogleOcrSettings;
genericOcrRunners.Add(new GoogleOcrService(googleSettings.ApiToken, ocrParams));
}
if (standardOcrSettings.TesseractOcrSettings != null)
{
var tesseractSettings = standardOcrSettings.TesseractOcrSettings;
if (tesseractSettings.ShouldTryToAutomaticallInstall && RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
var tesseractInstaller = new WindowsTesseractInstaller(tesseractSettings.TesseractExecutable);
await tesseractInstaller.Install();
tesseractSettings.Installer = tesseractInstaller;
tesseractSettings.TesseractExecutable = tesseractInstaller.TesseractExePath;
}
if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
{
tesseractSettings.TesseractExecutable = "tesseract";
}
genericOcrRunners.Add(new TesseractOcrService(tesseractSettings.TesseractExecutable, tesseractSettings.DataDir, ocrParams));
}
if (standardOcrSettings.WindowsOcrSettings != null && RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
genericOcrRunners.Add(new WindowsOcrService(ocrParams));
}
return(genericOcrRunners);
}
public StandardMultiOcrRunnerFactory(StandardOcrSettings settings, string cacheRootDirectory) :
this(settings, new FileStorageOcrCache(cacheRootDirectory))
{
}
public StandardMultiOcrRunnerFactory(StandardOcrSettings settings, IOcrCache ocrCache)
{
this.Settings = settings;
this.ocrCache = ocrCache;
this.imageCompressor = settings.ImageCompressor;
}
public StandardMultiOcrRunnerFactory(StandardOcrSettings settings) :
this(settings, new NoOpOcrCache())
{
}