public void Add(TextItem item, bool isLetter = false)
{
int index = -1;
if (item.Position >= 0 && item.Position <= 18)
index = 0;
if (item.Position >= 14 && item.Position <= 32 && isLetter)
index = 1;
if (item.Position >= 27 && item.Position <= 43)
index = 2;
if (item.Position >= 55 && item.Position <= 64)
index = 3;
if (item.Position >= 70 && item.Position <= 77) // 86
index = 4;
if (item.Position >= 82 && item.Position <= 91)
index = 5;
if (item.Position >= 96 && item.Position <= 116)
index = 6;
if (index >= 0 && ((isLetter && (index == 1 || index == 2)) || !isLetter))
{
if (_text[index] != null)
{
if (item.Accuracy >= _text[index].Accuracy)
{
_text[index] = item;
}
}
else
{
_text[index] = item;
}
}
}
public List<TextItem> DetectText(Bitmap image, int shift = 3, bool onlyLetters = false)
{
List<TextItem> detectedContent = new List<TextItem>();
int x = 0;
TextItem item;
while (x + _windowWidth < image.Width)
{
Rectangle rectangle = new Rectangle(x, 0, _windowWidth, _windowHeight);
Bitmap cut = image.Clone(rectangle, System.Drawing.Imaging.PixelFormat.DontCare);
Bitmap newImage = new Bitmap(_windowWidth, _windowHeight);
using (var graphics = Graphics.FromImage(newImage))
{
graphics.SmoothingMode = SmoothingMode.AntiAlias;
graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
graphics.PixelOffsetMode = PixelOffsetMode.HighQuality;
graphics.DrawImage(cut, new Rectangle(0, 0, _windowWidth, _windowHeight));
}
x += shift;
double[] input = ImageArray.FromBitmap(newImage, true);
double[] result = (!onlyLetters) ? _net.Compute(input) : _netLetters.Compute(input);
double max = double.MinValue;
int index = 0;
int maxIndex = 0;
foreach (double val in result)
{
if (val > max)
{
max = val;
maxIndex = index;
}
index++;
}
if (max >= 0.3)
{
item = new TextItem();
item.Position = x;
item.PositionEnd = x + _windowHeight;
item.Text = !onlyLetters ? maxIndex.ToString()[0] : this.numberToChar(maxIndex);
item.Accuracy = max;
detectedContent.Add(item);
if (saveImages)
{
newImage.Save("test3/imgb" + x + "f" + maxIndex.ToString() + "----" + Math.Round(max, 3).ToString() + ".png");
}
}
}
return detectedContent;
}
