protected async Task <List <Word> > OCROnePage(byte[] pageImageBytes)
{
//send image to oxford, obtain coordinate and content
var ocrResults = await VisionService.RecognizeText(pageImageBytes);
//get all valid words with more than 4 characters
var allLines = ocrResults.Regions.SelectMany(x => x.Lines).ToList();
var allWords = allLines.SelectMany(p => p.Words).ToList();
//be in valid length
var allWordsValidLength = allWords.Where(x => x.Text.Count() > ValidWordDigitCount).ToList();
//be in 62 char set
var allValidWordsWithSixtyTwoChars = allWordsValidLength.Where(x => x.Text.ContainsOnlySpecificSetOfChars(StringResources.SixtyTwoChars)).ToList();
//exists in ditionary
var allValidWords = allValidWordsWithSixtyTwoChars.Where(x => SpellService.IsWordCorrect(x.Text)).ToList();
return(allValidWords);
}
public virtual OcrResults GetTextualAnalysis(MediaItem m)
{
return(_visionService.RecognizeText(m.GetMediaStream(), "en", true));
}