public List <tessnet2.Word> DoOCRNormal(Bitmap image, string lang)
{
tessnet2.Tesseract ocr = new tessnet2.Tesseract();
ocr.Init(null, lang, false);
List <tessnet2.Word> result = ocr.DoOCR(image, Rectangle.Empty);
return(result);
}
private void button3_Click(object sender, EventArgs e)
{
//// pictureBox5.Image = img;
img = new Bitmap(pictureBox5.Image);
tessnet2.Tesseract orc = new tessnet2.Tesseract();
orc.SetVariable("tess_char_whitelist", "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ");
orc.Init(Application.StartupPath + @"\tessdata", "eng", false);
List <tessnet2.Word> result = orc.DoOCR(img, Rectangle.Empty);
string code = result[0].Text;
textBox1.Text = code;
}
//string Security_Code;
private void button3_Click(object sender, EventArgs e)
{
//img = new Bitmap(pictureBox6.Image);
//pictureBox6.Image = img;
Bitmap bmp = (Bitmap)pictureBox5.Image;
tessnet2.Tesseract ocr = new tessnet2.Tesseract();//声明一个OCR类
// ocr.SetVariable("tessedit_char_whitelist", "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789");
ocr.SetVariable("tessedit_char_whitelist", "abcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ");
ocr.Init(Application.StartupPath + @"\tessdata", "eng", false); //应用当前语言包。
List <tessnet2.Word> result = ocr.DoOCR(img, Rectangle.Empty);
// List<tessnet2.Word> result = ocr.DoOCR(img, Rectangle.Empty);//执行识别操作
string code = result[0].Text;
textBox1.Text = code;
}
public string AnalyzeDocument(string path)
{
var langDir = Directory.GetParent(Environment.CurrentDirectory);
var sb = new StringBuilder();
var image = new Bitmap(path);
var ocr = new tessnet2.Tesseract();
var tessdata = (langDir + @"\tessdata").Trim();
ocr.Init(tessdata, "eng", false);
List <Word> result = ocr.DoOCR(image, Rectangle.Empty);
ocr.GetThresholdedImage(image, Rectangle.Empty);
result.ForEach(word =>
{
sb.Append(word.Text + " ");
});
return(sb.ToString().Trim());
}
public static string OCRImageRegion(string img, Rectangle rect)
{
try {
using (Bitmap image = (Bitmap)Utilities.ConversionUtilities.NonLockingOpen(img))
{
Bitmap binarized = OCR_Preprocessing.PreprocessOCR(image, rect);
tessnet2.Tesseract ocr = new tessnet2.Tesseract();
ocr.Init(System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location), "eng", false);
// ocr.Init(@"C:\Documents and Settings\BENITO\Mis documentos\SharpDevelop Projects\tessnet2\bin\Debug", "eng", false);
// ocr.SetVariable("tessedit_char_whitelist", "0123456789.-"); // If digit only
List <tessnet2.Word> result = ocr.DoOCR(binarized, Rectangle.Empty); // Rectangle.Empty);
return(result[0].Text);
}
} catch (Exception ex) {
throw ex;
}
}
public static string OCRImageRegion(string img, Rectangle rect)
{
try {
using (Bitmap image = (Bitmap)Utilities.ConversionUtilities.NonLockingOpen(img))
{
Bitmap binarized = OCR_Preprocessing.PreprocessOCR(image,rect);
tessnet2.Tesseract ocr = new tessnet2.Tesseract();
ocr.Init(System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location), "eng", false);
// ocr.Init(@"C:\Documents and Settings\BENITO\Mis documentos\SharpDevelop Projects\tessnet2\bin\Debug", "eng", false);
// ocr.SetVariable("tessedit_char_whitelist", "0123456789.-"); // If digit only
List<tessnet2.Word> result = ocr.DoOCR(binarized, Rectangle.Empty);// Rectangle.Empty);
return result[0].Text;
}
} catch (Exception ex) {
throw ex;
}
}
public static Tuple<int, int, string[]> LoadImage(Bitmap image1)
{
Bitmap image = image1;
//expand
image=BitmapExtras.ResizeBitmap(image, (int) (image.Width * .7), (int) (image.Height * .7));
var ocr = new tessnet2.Tesseract();
ocr.SetVariable("tessedit_char_whitelist", "ABCDEFGHIJKLMOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz");
ocr.Init(null, "eng", false);
var result = ocr.DoOCR(image, Rectangle.Empty);
var r1 = new List<Character>();
foreach (var x in result)
{
r1.AddRange(x.CharList);
}
return LettersOnLines(r1, image);
}
// Initialization main func
public void Func1(Bitmap bmp)
{
pictureBoxFilled.Image = bmp;
pictureBoxInput.Image = (Bitmap)bmp.Clone();
List <Color> lst = new List <Color>();
Color c;
for (int x = 2; x < bmp.Width; x++)
{
c = bmp.GetPixel(x, 2);
if (!lst.Contains(c))
{
lst.Add(c);
}
c = bmp.GetPixel(x, bmp.Height - 3);
if (!lst.Contains(c))
{
lst.Add(c);
}
}
for (int y = 0; y < bmp.Height; y++)
{
c = bmp.GetPixel(2, y);
if (!lst.Contains(c))
{
lst.Add(c);
}
c = bmp.GetPixel(31, y);
if (!lst.Contains(c))
{
lst.Add(c);
}
c = bmp.GetPixel(90, y);
if (!lst.Contains(c))
{
lst.Add(c);
}
c = bmp.GetPixel(bmp.Width - 3, y);
if (!lst.Contains(c))
{
lst.Add(c);
}
}
for (int x = 0; x < bmp.Width; x++)
{
for (int y = 0; y < bmp.Height; y++)
{
c = bmp.GetPixel(x, y);
if (lst.Contains(c))
{
if (c != Color.White)
{
FloodFill(bmp, x, y, Color.White);
}
}
}
}
Ocr ocr = new Ocr();
//Input
tessnet2.Tesseract tessocr = new tessnet2.Tesseract();
tessocr.SetVariable("tessedit_char_whitelist", "0123456789*+-=");
tessocr.Init(null, "eng", false);
pictureBoxInputLib.Image = tessocr.GetThresholdedImage((Bitmap)pictureBoxInput.Image, Rectangle.Empty);
List <tessnet2.Word> text = ocr.DoOCRNormal((Bitmap)pictureBoxInput.Image, "eng");
textBoxInput.Text = text[0].Text;
//Filled
tessocr = new tessnet2.Tesseract();
tessocr.SetVariable("tessedit_char_whitelist", "0123456789*+-=");
tessocr.Init(null, "eng", false);
pictureBoxFilledLib.Image = tessocr.GetThresholdedImage((Bitmap)pictureBoxFilled.Image, Rectangle.Empty);
text = ocr.DoOCRNormal((Bitmap)pictureBoxFilled.Image, "eng");
textBoxFilled.Text = text[0].Text;
}