private void TestLoadBitmap(Bitmap b)
{
var images = symbol.SplitUp(b); // пробелы между символами
//load white space straight away
if (symbol.Letters.Any(s => s.Letter.Equals(' ')) == false)
{
symbol.Train(SymbolIdentity.WhiteBitmap, ' ');
}
//for each image that hasnt been seen, have the player enter it
foreach (var row in images)
{
foreach (var col in row)
{
//try and find a perfect match
var c = symbol.PerformOCRCharacterPerfect(col);
//we only want things we havent seen before
if (c != null)
{
continue;
}
if (BitmapExtras.IsAllPixelsAColour(col, Color.White))
{
continue;
}
//ask user for character and show
var gsi = new GetImageCompare();
var letters = gsi.ShowDialog("Какой символ изображен на форме?", "Определение символов", col, 1);
if (letters == null)
{
return;
}
if (letters.Length == 0)
{
continue;
}
var letter = letters.First().First();
if (char.IsWhiteSpace(letter))
{
MessageBox.Show("cannot be white space");
return;
}
if (symbol.Letters.Any(s => s.Letter.Equals(letter)))
{
symbol.Letters.RemoveAll(s => s.Letter.Equals(letter));
}
//ОБУЧЕНИЕ
symbol.Train(col, letter);
}
}
}
public void GetAndSetImages(PrintModes pm, MinimalOptions mo)
{
//download first if necessary
//colour
var pathColour = GetImageFilename(C, PrintModes.Colour);
if (File.Exists(pathColour) == false)
{
NetExtras.DownloadFile(C.ImgURL, pathColour);
}
//black and white
var pathBw = GetImageFilename(C, PrintModes.BlackAndWhite);
if (File.Exists(pathBw) == false)
{
Bitmap bw;
using (var i = (Bitmap)Image.FromFile(pathColour))
{
bw = BitmapExtras.ApplyGrayscale(new Bitmap(i));
}
bw.Save(pathBw);
}
//minimal - always generate in case options have changed - todo - do properly
var minpath = GetImageFilename(C, PrintModes.Minimal);
if (File.Exists(minpath))
{
File.Delete(minpath);
}
var m = MinimalCardControl.Show(C, mo);
var min = new Bitmap(m.Width, m.Height);
m.DrawToBitmap(min, new Rectangle(0, 0, m.Width, m.Height));
min.Save(minpath);
SetImage(pm);
}
/// <summary>
/// trim white and resize to created dimensions
/// </summary>
/// <param name="b1">The b1.</param>
/// <returns></returns>
public Bitmap Normalise(Bitmap b1)
{
//white 1x1=empty
if (b1.Width == 1 && b1.Height == 1)
{
return(b1);
}
//trim white
var b = BitmapExtras.RemoveExcessWhitespace(b1);
if (b == null)
{
return(null);
}
//resize to internal size
b = BitmapExtras.StretchBitmap(b, HistogramWidth, HistogramHeight);
//convert to black and white
b = BitmapExtras.ChangeAllNonWhitePixelsToColour(b, Color.Black);
return(b);
}
/// <summary>
/// Splits the specified b.
/// </summary>
/// <param name="b">The b.</param>
/// <param name="byRow">if set to <c>true</c> [by row].</param>
/// <param name="whiteToSpace">The white to space.</param>
/// <returns></returns>
/// <exception cref="Exception">error splitting</exception>
private static IEnumerable <Bitmap> Split(Bitmap b, bool byRow, ref int whiteToSpace)
{
//split rows then cols
var w = b.Width;
var h = b.Height;
var to = byRow ? h : w;
var items = new List <Bitmap>();
var whiteStart = 0;
var lastValue = -1;
for (var v = 0; v < to; v++)
{
//keep going until we find a row with black
var isWhite = BitmapExtras.IsRowOrColSameColour(b, v, byRow, Color.White);
if (isWhite)
{
if (whiteStart == v)
{
whiteStart++;
continue;
}
//see if there is a space at the start
if (whiteToSpace != -1 && items.Count == 0 && v >= whiteToSpace)
{
items.Add(WhiteBitmap);
}
//if there is more than a certain amount of space check/add a white item
if (whiteToSpace != -1 && lastValue != -1 && ((v - lastValue) >= whiteToSpace))
{
items.Add(WhiteBitmap);
}
//if this occurs, there is a character before
Bitmap i = null;
if (byRow)
{
//if by row, and the second time, we can estimate the white space for a space
if (whiteToSpace == -1 && items.Count == 1)
{
whiteToSpace = whiteStart;
}
i = BitmapExtras.Crop(b, -1, v - whiteStart, 0, whiteStart);
}
else
{
i = BitmapExtras.Crop(b, v - whiteStart, -1, whiteStart, 0);
}
if (i == null)
{
throw new Exception("error splitting");
}
items.Add(i);
lastValue = v;
whiteStart = v + 1;
}
}
//see if there is a space at the end
if (whiteToSpace != -1 && lastValue != -1 && ((to - lastValue) >= whiteToSpace))
{
items.Add(WhiteBitmap);
}
return(items);
}
