/// <summary>
/// Click run button to start the OCR function
/// </summary>
/// <param name="currentImg">Is image we are processing it</param>
/// <returns></returns>
private string runningOCR(ImageClass currentImg)
{
try
{
if (currentImg == null)
{
//return "please open at least one image";
MessageBox.Show("Please open at least one image");
return(null);
}
// Check the language if it be selected or not
if (!IsSelectedLanguage)
{
MessageBox.Show("Please select language for recognizing");
return("Waiting for Select language");
}
else
{
Stopwatch stopW = Stopwatch.StartNew();
Debug.WriteLine("USING XISOM OCR LIB: processOCR");
//Convert Grayscale using method 3
taskViewModel.xisomOCR.Grayscale = true;
taskViewModel.xisomOCR.GrayscaleMethod = 3;
var ocrData = taskViewModel.xisomOCR.ProcessOCRwithBoxs(ImageConverter.BitmapImage2Bitmap(currentImg.Image));
ocrDetectedRegion = new Dictionary <SolidColorBrush, List <Rectangle> >();
ocrDetectedRegion.Add(new SolidColorBrush(Colors.Violet), ocrData.charBoxs.ToList());
ocrDetectedRegion.Add(new SolidColorBrush(Colors.Yellow), ocrData.wordBoxs.ToList());
ocrDetectedRegion.Add(new SolidColorBrush(Colors.Green), ocrData.lineBoxs.ToList());
ocrDetectedRegion.Add(new SolidColorBrush(Colors.Red), ocrData.paraBoxs.ToList());
stopW.Stop();
var time_dur = stopW.Elapsed.TotalMilliseconds.ToString();
this.executedTime = time_dur;
return(ocrData.outOCR);
}
}
catch (Exception e)
{
Debug.WriteLine(e);
}
return(null);
}
/// <summary>
/// This is used to automatically find skewAngle and skew
/// </summary>
/// <param name="source"></param>
/// <param name="rect"></param>
/// <param name="HighQuality"></param>
/// <returns></returns>
public static Bitmap CropRotationRect2(Bitmap source, Rectangle rect, bool HighQuality)
{
int addition = (int)Math.Sqrt(rect.Width * rect.Width + rect.Height * rect.Height) - rect.Width;
rect = new Rectangle(rect.X - (int)addition / 2, rect.Y, (int)Math.Sqrt(rect.Width * rect.Width + rect.Height * rect.Height), rect.Height);
//Crop function first
Image img = CropImage.Crop(source, rect);
//Get skewAngle first time
double imageSkewAngle_temp = 100; //initial skew angle
double imageSkewAngle = 0; //not skew
int iter = 0; //iteration
while (Math.Abs(imageSkewAngle_temp) > 0.1 && iter < 5)
{
var skew = new gmseDeskew(ImageConverter.BitmapImage2Bitmap(ImageConverter.Image2BitmapImage(img)));
imageSkewAngle_temp = skew.GetSkewAngle();
imageSkewAngle = imageSkewAngle + imageSkewAngle_temp;
img = gmseDeskew.DeskewImage(img);
iter = iter + 1;
}
Debug.WriteLine("Goc skew tich luy sau loop: " + imageSkewAngle.ToString());
Bitmap result = new Bitmap(rect.Width, rect.Height);
using (Graphics g = Graphics.FromImage(result))
{
g.InterpolationMode = HighQuality ? InterpolationMode.HighQualityBicubic : InterpolationMode.Default;
using (Matrix mat = new Matrix())
{
mat.Translate(-rect.X, -rect.Y);
mat.RotateAt(-(float)imageSkewAngle, new Point(rect.X + (int)rect.Width / 2, rect.Y + (int)rect.Height / 2));
g.Transform = mat;
g.DrawImage(source, new Point(0, 0));
}
}
return(result);
}
//perform use skew angle from Deskew algorithm
/// <summary>
/// This method is used to find skewAngle with specificed time and skew
/// </summary>
/// <param name="source"></param>
/// <param name="rect"></param>
/// <param name="HighQuality"></param>
/// <returns></returns>
public static Bitmap CropRotationRect(Bitmap source, Rectangle rect, bool HighQuality)
{
//Crop function first
Image img = CropImage.Crop(source, rect);
//Get skewAngle first time
gmseDeskew skew = new gmseDeskew(ImageConverter.BitmapImage2Bitmap(ImageConverter.Image2BitmapImage(img)));
double imageSkewAngle = skew.GetSkewAngle();
//Accumulate skewAngle second time
Bitmap img2 = gmseDeskew.DeskewImage(ImageConverter.BitmapImage2Bitmap(ImageConverter.Image2BitmapImage(img)));
skew = new gmseDeskew(img2);
imageSkewAngle = imageSkewAngle + skew.GetSkewAngle();
//Accumulate skewAngle third time
//Bitmap img3 = gmseDeskew.DeskewImage(img2);
//gmseDeskew skew3 = new gmseDeskew(img3);
//imageSkewAngle = imageSkewAngle + skew3.GetSkewAngle();
Debug.WriteLine("Goc skew sau 2 lan tim: " + imageSkewAngle.ToString());
Bitmap result = new Bitmap(rect.Width, rect.Height);
using (Graphics g = Graphics.FromImage(result))
{
g.InterpolationMode = HighQuality ? InterpolationMode.HighQualityBicubic : InterpolationMode.Default;
using (Matrix mat = new Matrix())
{
mat.Translate(-rect.X, -rect.Y);
mat.RotateAt(-(float)imageSkewAngle, new Point(rect.X + (int)rect.Width / 2, rect.Y + (int)rect.Height / 2));
g.Transform = mat;
g.DrawImage(source, new Point(0, 0));
}
}
return(result);
}
private void LoadResourceImage()
{
backgroundImage = new BitmapImage(new Uri("Resources/bg_1920.jpeg", UriKind.Relative));
bgImg = new Image <Bgr, byte>(imageConverter.BitmapImage2Bitmap(backgroundImage));
}
