internal static byte[] ConvertPageToGrayscaleImageIncludeAnnotations(IDocLib library, string path, int pageIndex)
{
using (var docReader = library.GetDocReader(path, new PageDimensions(1080, 1920)))
{
using (var pageReader = docReader.GetPageReader(pageIndex))
{
var bytes = GetModifiedImage(pageReader);
return(bytes);
}
}
}
internal static byte[] ConvertPageToSimpleImageWithoutTransparency(IDocLib library, string path, int pageIndex)
{
using (var docReader = library.GetDocReader(path, new PageDimensions(1080, 1920)))
{
using (var pageReader = docReader.GetPageReader(pageIndex))
{
var bytes = GetModifiedImage(pageReader);
return(bytes);
}
}
}
#pragma warning restore CS8618 // Non-nullable field must contain a non-null value when exiting constructor. Consider declaring as nullable.
#endregion
public MainViewModel(IOptionService optionService, IDirectoryService directoryService,
IAppService infoService, IThemeService themeService)
{
// Initialize services
_docLib = DocLib.Instance;
_optionService = optionService;
_directoryService = directoryService;
_themeService = themeService;
_infoService = infoService;
// Initialize commands
GetDirectory = ReactiveCommand.Create(BrowseDirectory);
ReadPDF = ReactiveCommand.Create(() => {
_th = new Thread(() => StartReading());
_th.IsBackground = true;
_th.Start();
}, this.IsValid());
ChangeTheme = ReactiveCommand.Create(() =>
{
themeService.ChangeTheme();
CurrentThemeName = themeService.GetCurrentThemeName();
});
ChangeLanguage = ReactiveCommand.Create(() =>
{
infoService.ChangeLanguage();
CurrentLanguageName = infoService.GetCurrentLanguage();
UpdateStringResources();
});
// Initialize variables
PrecisionOCR = new ObservableCollection <RecognitionPrecision>(Enum.GetValues(typeof(RecognitionPrecision)).Cast <RecognitionPrecision>());
LanguageOCR = new ObservableCollection <RecognitionLanguage>(Enum.GetValues(typeof(RecognitionLanguage)).Cast <RecognitionLanguage>());
Options = new SearchOptions("", "", PrecisionOCR.FirstOrDefault(), LanguageOCR.FirstOrDefault(),
false, true, false, true, false, false);
Results = new ObservableCollection <QueryResult>();
Stats = new ResultStats("0/0", true, 0, "0");
ResultInfo = infoService.GetSearchInfo(SearchInfo.Init);
StatusName = infoService.GetSearchStatus(SearchStatus.Ready);
CurrentThemeName = themeService.GetCurrentThemeName();
CurrentLanguageName = infoService.GetCurrentLanguage();
ItemsReady = false;
// Subscribe for events and set validation rules
ErrorsChanged += OnValidationErrorsChanged;
this.ValidationRule(x => x.Options.Keyword, key => !string.IsNullOrEmpty(key), "Keyword cannot be empty!");
this.ValidationRule(x => x.Options.Path, key => !string.IsNullOrEmpty(key) && Directory.Exists(key), "Path has to be valid!");
// Get assembly version
AppVersion = infoService.GetVersion();
}
public MemoryStream PdfToImage(Stream filepdf)
{
var pdfBytes = ReadToEnd(filepdf);
MemoryStream memoryStream = new MemoryStream();
MagickImage imgBackdrop;
MagickColor backdropColor = MagickColors.White; // replace transparent pixels with this color
int pdfPageNum = 0; // first page is 0
using (IDocLib pdfLibrary = DocLib.Instance)
{
// Console.WriteLine("pdfBytes");
//Console.WriteLine(pdfBytes.Length);
using (var docReader = pdfLibrary.GetDocReader(pdfBytes, new PageDimensions(1.0d)))
{
using (var pageReader = docReader.GetPageReader(pdfPageNum))
{
var rawBytes = pageReader.GetImage();
rawBytes = RearrangeBytesToRGBA(rawBytes);
var width = pageReader.GetPageWidth();
var height = pageReader.GetPageHeight();
PixelReadSettings pixelReadSettings = new PixelReadSettings(width, height, StorageType.Char, PixelMapping.RGBA);
using (MagickImage imgPdfOverlay = new MagickImage(rawBytes, pixelReadSettings))
{
imgBackdrop = new MagickImage(backdropColor, width, height);
imgBackdrop.Composite(imgPdfOverlay, CompositeOperator.Over);
}
}
}
}
imgBackdrop.Write(memoryStream, MagickFormat.Png);
imgBackdrop.Dispose();
memoryStream.Position = 0;
return(memoryStream);
}
public ExampleFixture()
{
DocNet = DocLib.Instance;
}
internal static byte[] ConvertPageToSimpleImageWithLetterOutlinesUsingScaling(IDocLib library, string path, int pageIndex)
{
using (var docReader = library.GetDocReader(path, new PageDimensions(1.337)))
{
using (var pageReader = docReader.GetPageReader(pageIndex))
{
var bytes = GetModifiedImage(pageReader);
return(bytes);
}
}
}
