Text Extractor

internal static async Task<OcrResult> GetOcrResultFromImageAsync(Bitmap bmp, Language language)
{
    await using MemoryStream memoryStream = new();
    using WrappingStream wrappingStream = new(memoryStream);
    
    bmp.Save(wrappingStream, ImageFormat.Bmp);
    wrappingStream.Position = 0;
    
    BitmapDecoder bmpDecoder = await BitmapDecoder.CreateAsync(wrappingStream.AsRandomAccessStream());
    SoftwareBitmap softwareBmp = await bmpDecoder.GetSoftwareBitmapAsync();
    
    OcrEngine ocrEngine = OcrEngine.TryCreateFromLanguage(language);
    return await ocrEngine.RecognizeAsync(softwareBmp);
}

bool scaleBMP = true;

if (bmp.Width * 1.5 > OcrEngine.MaxImageDimension) {
    scaleBMP = false;  // Image already large enough
}

// Scale to 1.5x for better recognition (if within limits)
using Bitmap scaledBitmap = scaleBMP ? 
    ImageMethods.ScaleBitmapUniform(bmp, 1.5) : 
    ImageMethods.ScaleBitmapUniform(bmp, 1.0);

public static async Task<string> GetRegionsTextAsTableAsync(
    OCROverlay passedWindow, 
    Rectangle regionScaled, 
    Language? language)
{
    // Extract text
    OcrResult ocrResult = await GetOcrResultFromImageAsync(scaledBitmap, language);
    
    // Parse into table structure
    List<WordBorder> wordBorders = ResultTable.ParseOcrResultIntoWordBorders(
        ocrResult, dpiScale);
    
    // Format as table
    return ResultTable.GetWordsAsTable(
        wordBorders, dpiScale, isSpaceJoiningLang);
}