/// <summary>
/// Perform OCR on pages of image.
/// </summary>
/// <param name="imageList"></param>
/// <param name="index">-1 for all pages</param>
/// <param name="rect">selection rectangle</param>
void performOCR(IList <Image> imageList, string inputfilename, int index, Rectangle rect)
{
try
{
if (curLangCode.Trim().Length == 0)
{
MessageBox.Show(this, Properties.Resources.selectLanguage, strProgName);
return;
}
this.statusLabel.Content = Properties.Resources.OCRrunning;
this.Cursor = Cursors.Wait;
this.textBox1.Cursor = Cursors.Wait;
this.buttonOCR.IsEnabled = false;
this.oCRToolStripMenuItem.IsEnabled = false;
this.oCRAllPagesToolStripMenuItem.IsEnabled = false;
this.toolStripProgressBar1.IsEnabled = true;
this.toolStripProgressBar1.Visibility = Visibility.Visible;
//this.toolStripProgressBar1.Style = ProgressBarStyle.Marquee;
OCRImageEntity entity = new OCRImageEntity(imageList, inputfilename, index, rect, this.doubleSidedPageToolStripMenuItem.IsChecked, curLangCode);
entity.ScreenshotMode = this.screenshotModeToolStripMenuItem.IsChecked;
// Start the asynchronous operation.
backgroundWorkerOcr.RunWorkerAsync(entity);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
//[System.Diagnostics.DebuggerNonUserCodeAttribute()]
private void backgroundWorkerOcr_DoWork(object sender, DoWorkEventArgs e)
{
// Get the BackgroundWorker that raised this event.
BackgroundWorker worker = sender as BackgroundWorker;
OCRImageEntity entity = (OCRImageEntity)e.Argument;
OCR <Image> ocrEngine = new OCRImages();
ocrEngine.PageSegMode = selectedPSM;
ocrEngine.OcrEngineMode = selectedOEM;
ocrEngine.Language = entity.Language;
// Assign the result of the computation to the Result property of the DoWorkEventArgs
// object. This is will be available to the RunWorkerCompleted eventhandler.
//e.Result = ocrEngine.RecognizeText(entity.ClonedImages, entity.Lang, entity.Rect, worker, e);
IList <Image> images = entity.ClonedImages;
for (int i = 0; i < images.Count; i++)
{
if (worker.CancellationPending)
{
e.Cancel = true;
break;
}
string result = ocrEngine.RecognizeText(((List <Image>)images).GetRange(i, 1), entity.Inputfilename, entity.Rect, worker, e);
worker.ReportProgress(i, result); // i is not really percentage
}
}
