private void _annAutomationObjects_ItemRemoved(object sender, AnnObjectCollectionEventArgs e)
{
// Check if we are updating the zones, no need for this
if (_ignoreAddRemove)
{
return;
}
// User deleted the annotation object, delete the corresponding zone
ZoneAnnotationObject zoneObject = e.Object as ZoneAnnotationObject;
if (zoneObject != null)
{
if (_setSelect)
{
InteractiveMode = ViewerControlInteractiveMode.SelectMode;
return;
}
_setSelect = true;
int index = zoneObject.ZoneIndex;
_ocrPage.Zones.RemoveAt(index);
// Reset all the zones
for (int i = 0; i < _annAutomation.Container.Children.Count; i++)
{
zoneObject = _annAutomation.Container.Children[i] as ZoneAnnotationObject;
zoneObject.SetZone(_ocrPage, i, _showZonesToolStripButton.Checked, _showZoneNameToolStripButton.Checked);
}
// We should mark the page as unrecognized since we updated its zones
_ocrPage.Unrecognize();
// Update the thumbnail(s)
DoAction("RefreshPagesControl", false);
}
}
private IOcrPage DoublePass(RasterImage image)
{
//first pass with default settings
IOcrPage page = _ocrEngine.CreatePage(image.Clone(), OcrImageSharingMode.AutoDispose);
page.Recognize(null);
//second pass with mobile image processing set to true
_ocrEngine.SettingManager.SetBooleanValue("Recognition.Preprocess.MobileImagePreprocess", true);
IOcrPage mobilePage = _ocrEngine.CreatePage(image.Clone(), OcrImageSharingMode.AutoDispose);
mobilePage.Recognize(null);
//get the confidence of both pages
PageResults firstPassResults = GetPageConfidence(page);
PageResults secondPassResults = GetPageConfidence(mobilePage);
double confidenceDif = firstPassResults.Confidence - secondPassResults.Confidence;
IOcrPage highestConfidence;
PageResults pageResultsHighest;
if (confidenceDif > 2)
{
highestConfidence = page;
pageResultsHighest = firstPassResults;
}
else
{
highestConfidence = mobilePage;
pageResultsHighest = secondPassResults;
}
if (pageResultsHighest.TotalWords < 20)
{
IOcrPage thirdPass = highestConfidence.Copy();
thirdPass.Unrecognize();
OcrZone singleZone = new OcrZone()
{
Bounds = new LeadRect(0, 0, image.Width, image.Height)
};
thirdPass.Zones.Add(singleZone);
thirdPass.Recognize(null);
PageResults thirdResults = GetPageConfidence(thirdPass);
double confidencetDifThird = thirdResults.Confidence - pageResultsHighest.Confidence;
if (confidenceDif > 5)
{
highestConfidence = thirdPass;
pageResultsHighest = thirdResults;
}
}
return(highestConfidence);
}