/// <summary>
/// Retrieve text from the given OCR results object.
/// </summary>
/// <param name="results">The OCR results.</param>
/// <returns>Return the text.</returns>
private void ShowRetrieveText(OcrResults results)
{
StringBuilder stringBuilder = new StringBuilder();
if (results != null && results.Regions != null)
{
stringBuilder.Append("Text: ");
stringBuilder.AppendLine();
foreach (var item in results.Regions)
{
foreach (var line in item.Lines)
{
foreach (var word in line.Words)
{
stringBuilder.Append(word.Text);
stringBuilder.Append(" ");
}
stringBuilder.AppendLine();
}
stringBuilder.AppendLine();
}
}
Console.ForegroundColor = ConsoleColor.Green;
Console.Write(stringBuilder.ToString());
Console.ResetColor();
}
/// <summary>
/// Log text from the given OCR results object.
/// </summary>
/// <param name="results">The OCR results.</param>
protected void LogOcrResults(OcrResults results)
{
StringBuilder stringBuilder = new StringBuilder();
if (results != null && results.Regions != null)
{
stringBuilder.Append("Text: ");
stringBuilder.AppendLine();
foreach (var item in results.Regions)
{
foreach (var line in item.Lines)
{
foreach (var word in line.Words)
{
stringBuilder.Append(word.Text);
stringBuilder.Append(" ");
}
stringBuilder.AppendLine();
}
stringBuilder.AppendLine();
}
}
Log(stringBuilder.ToString());
}
private async void detectButton_Click(object sender, RoutedEventArgs e)
{
var pivotItem = Pivot.SelectedItem as PivotItem;
if (pivotItem != null)
{
if (pivotItem == AnalysisItem)
{
if (_selectedImageFile != null)
{
using (var stream = await _selectedImageFile.OpenStreamForReadAsync())
{
var result = await _serviceClient.AnalyzeImageAsync(stream);
if (result != null)
{
AnalysisResult = result;
AnalysisListBox.ItemsSource = result.Categories;
}
}
}
}
if (pivotItem == OcrItem)
{
if (_selectedImageFile != null)
{
using (var stream = await _selectedImageFile.OpenStreamForReadAsync())
{
var result = await _serviceClient.RecognizeTextAsync(stream);
OcrResult = result;
foreach (var region in OcrResult.Regions)
{
foreach (var line in region.Lines)
{
foreach (var word in line.Words)
{
OcrResultsTextBox.Text += word.Text;
OcrResultsTextBox.Text += ' ';
}
}
}
}
}
}
}
}
public ObservableCollection<Face> OcrGetFramesRectanglesForRecognizedText(OcrResults ocrResults, string selectedFile)
{
var frames = new ObservableCollection<Face>();
var imageInfo = GetImageInfoForRendering(selectedFile);
foreach (var region in ocrResults.Regions)
{
var face = new Face();
face = CalculateTextRectangleForRendering(face, MaxImageSize, imageInfo, region.Rectangle.Left,
region.Rectangle.Top, region.Rectangle.Height, region.Rectangle.Width);
face.ScoredEmotion = $"lines {region.Lines.Length}";
frames.Add(face);
}
return frames;
}
public string OcrRecognizeTextAsString(OcrResults ocrResult)
{
var result = $@"Language: {ocrResult.Language}
Orientation: {ocrResult.Orientation}
Text Angle: {ocrResult.TextAngle}
";
foreach (var region in ocrResult.Regions)
{
result += $@"Region
BoundingBox: {region.BoundingBox}
Rectangle:
Left {region.Rectangle.Left}, Top {region.Rectangle.Top},
Height {region.Rectangle.Height}, Width {region.Rectangle.Width}
Lines
";
foreach (var line in region.Lines)
{
foreach (var word in line.Words)
{
result += $@"{word.Text} ";
}
result += $@"
";
}
}
return result;
}
static IEnumerable<string> ToLines(OcrResults ocr) =>
ocr.Regions
.SelectMany(r => r.Lines)
.Select(ToText);
