private void buttonHistogram_Click(object sender, EventArgs e)
{
var highlighter = new TextDistinguish.HorizontalLineHighlighter(_sourceImage);
var boundsLines = highlighter.CalculateHighlightingBoundsByExtremums();
boundsLines = YLineBounds.FilterLittleLines(boundsLines, 4);
var graphics = this._pictureBox.CreateGraphics();
DrawLines(boundsLines, graphics, Color.Blue);
var lineBitmaps = CutLines(_sourceImage, highlighter);
var xHistGraphics = xHistPictureBox.CreateGraphics();
var letterPen = new Pen(Color.Red);
var recognitionText = new StringBuilder();
var pers = Perseptron.FromFile(_perName);
int ii = 0;
for (int j = 0; j < boundsLines.Count(); j++)
{
var b = boundsLines.ElementAt(j);
var line = lineBitmaps.ElementAt(j);
var letterHighlighter = new LetteresHighlighter(line);
var lettersBounds = letterHighlighter.CalculateHighlightingBoundsByExtremums();
if (!lettersBounds.Any())
{
System.Diagnostics.Debug.WriteLine("letters size = 0");
continue;
}
var resizedImgs = new List<int[]>();
double avgLetterDistance = CalcAverageLetterDistance(lettersBounds);
for(int li = 0; li < lettersBounds.Count(); li++)
{
var letter = lettersBounds.ElementAt(li);
graphics.DrawLine(letterPen, new Point(letter.Start, b.Start), new Point(letter.Start, b.End));
graphics.DrawLine(letterPen, new Point(letter.End, b.Start), new Point(letter.End, b.End));
var letterBitmap = TextDistinguish.BitmapEditor.Cut(_sourceImage, new Point(letter.Start, b.Start),
new Point(letter.End, b.End));
var cuttedLetter = CutLines(letterBitmap);
if (cuttedLetter.Any() && cuttedLetter.Count == 1)
{
letterBitmap = cuttedLetter[0];
}
else
{
cuttedLetter = CutLines(AddTopAndBottomLines(letterBitmap));
if (cuttedLetter.Any() && cuttedLetter.Count == 1)
{
letterBitmap = cuttedLetter[0];
//letterBitmap.Save(String.Format("d:\\letters\\bad-{0}.jpg", ii));
}
else
{
//letterBitmap.Save(String.Format("d:\\letters\\pzds-bad-{0}.jpg", ii));
}
}
var resizedImg = ResizeImage(letterBitmap, new Size(30, 40));
//resizedImg.Save(String.Format("d:\\letters\\l{0}.jpg", ii++));
var letterAsInts = BitmapEditor.ImgToInts(resizedImg);
var classRes = pers.Classify(letterAsInts);
if (li > 0)
{
int distanceCurToPrev = lettersBounds.ElementAt(li).Start - lettersBounds.ElementAt(li - 1).End;
if (distanceCurToPrev > avgLetterDistance * 2)
{
recognitionText.Append(" ");
}
}
try
{
recognitionText.Append(determineSymbol(classRes));
}
catch
{
recognitionText.Append("-");
}
};
recognitionText.Append("\r\n");
}
System.Diagnostics.Debug.WriteLine(recognitionText);
MessageBox.Show(recognitionText.ToString());
DrawHistogramm();
}
private List<Bitmap> CutLines(Bitmap bitmap, HorizontalLineHighlighter highlighter = null)
{
var lineHighlighter = highlighter ?? new HorizontalLineHighlighter(bitmap);
var boundsLines = lineHighlighter.CalculateHighlightingBoundsByExtremums();
var linesBitmaps = boundsLines.ToList().Select(b =>
{
return TextDistinguish.BitmapEditor.Cut(bitmap, new Point(0, b.Start), new Point(bitmap.Width, b.End));
});
return linesBitmaps.ToList();
}
