vertical processing

[Tarık Memil]

hi 

i m trying to auto login website with captca like a picture

but why tessnet Changing the location of the letters

 here is my code

 Nesne = wb1.Document.DomDocument.body.createControlRange()

            Nesne.Add(wb1.Document.Images(0).DomElement)

            Nesne.execCommand("Copy")

                Resim = My.Computer.Clipboard.GetImage()

                Dim image As Bitmap = New Bitmap(Resim)

            pb1.Image = image

            Dim img As Bitmap = New Bitmap(image)

            Dim clr As Integer

            For x = 0 To img.Width - 1

                For y = 0 To img.Height - 1

                    clr = (CInt(img.GetPixel(x, y).R) +

                   img.GetPixel(x, y).G +

                   img.GetPixel(x, y).B) \ 3

                    img.SetPixel(x, y, Color.FromArgb(clr, clr, clr))

                Next y

            Next x

            Dim ocr = New Tesseract()

            ocr.SetVariable("tessedit_char_whitelist", "ABCDEFGHIJKLMNOPQRSTUVWXYZ")

            ocr.Init(Application.StartupPath & "\tessdata", "eng", False)

            Dim result = ocr.DoOCR(img, Rectangle.Empty)

            For Each word As Word In result

                guvenlikkodu = guvenlikkodu & word.Text

                'Console.WriteLine("{0} : {1}", word.Confidence, word.Text)

            Next

thanks for help and sorry for my english