public override DecoderItem Decode(byte[] input, VisualDecoderSettings settings)
{
var result = new DecoderItem();
var language = settings.OCRLanguage.ToString();
//use eng if the user dont know the language
if (language.Equals(VisualDecoderSettings.OCRLanguages.unkown.ToString()))
{
language = VisualDecoderSettings.OCRLanguages.eng.ToString();
}
using (var ocr = new tessnet2.Tesseract()){
try
{
ocr.Init(TessractData, language, settings.NumericMode);
List <tessnet2.Word> r1 = ocr.DoOCR(ByteArrayToImage(input), Rectangle.Empty);
//aggregate resultTest
string resultText = "";
int lc = tessnet2.Tesseract.LineCount(r1);
for (int i = 0; i < lc; i++)
{
resultText += tessnet2.Tesseract.GetLineText(r1, i) + "\n";
}
//fill result
result.CodePayload = resultText;
result.CodeType = "none";
result.BitmapWithMarkedCode = input;
ocr.Clear();
}
catch (Exception) // well, the ocr lib sucks... it sometimes trows memory leaks.
// But it is the best opensource lib available.
{
}
}
return(result);
}
private static async Task <string> CrackCaptcha(HttpClient client)
{
//System.Diagnostics.Debugger.Break();
try
{
Bitmap captchaBitmap = await LoadPicture(client, "https://signup.leagueoflegends.com/de/signup/captcha/");
PrepareCaptcha(captchaBitmap);
captchaBitmap.Save("captcha.png");
string result = "";
using (tessnet2.Tesseract ocr = new tessnet2.Tesseract())
{
ocr.Init(Directory.GetCurrentDirectory() + @"\tessdata\", "eng", false);
ocr.SetVariable("tessedit_char_whitelist", "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789");
List <tessnet2.Word> wlist = ocr.DoOCR(captchaBitmap, Rectangle.Empty);
foreach (tessnet2.Word w in wlist)
{
result += w.Text;
}
ocr.Clear();
ocr.Dispose();
wlist.Clear();
return(result);
}
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
return("ERROR");
}