public IEnumerable <OcrResult> ProcessOcrResult(BitmapWithOcrMetaInfo image)
{
NumberOfAwaiters += 1;
engineLock.WaitOne();
Thread.CurrentThread.Priority = ThreadPriority.Highest;
IEnumerable <OcrResult> outResults = null;
using (var page = Engine.Process(image.BitmapAsBytes.ToBitmap(), PageSegMode.SingleBlock))
{
var rawText = OcrUtils.RemoveOcrArtifacts(page.GetHOCRText(0, false));
var ocrWords = OcrUtils
.GetWords(rawText, image.OcrBoundingBox);
outResults = ocrWords
.Select(x => new OcrResult()
{
ContourOffset = image.OcrBoundingBox,
BoundingBox = x.Key,
Result = new string[] { x.Value }
});
}
Thread.CurrentThread.Priority = ThreadPriority.Normal;
engineLock.Release();
NumberOfAwaiters -= 1;
return(outResults);
}
public IEnumerable <OcrResult> PerformOcr(BitmapWithOcrMetaInfo image)
{
return(EngineWithLowestAwaiters.ProcessOcrResult(image));
}
