Class DjvuPage

Class DjvuPage

Nom dels espais: Aspose.Imaging.FileFormats.Djvu Assemblea: Aspose.Imaging.dll (25.4.0)

Classificació de pàgines Djvu

[JsonObject(MemberSerialization.OptIn)]
public class DjvuPage : RasterCachedImage, IDisposable, IObjectWithBounds, IRasterImageArgb32PixelLoader, IRasterImageRawDataLoader, IHasXmpData, IHasMetadata, INotifyPropertyChanged

Inheritance

object DisposableObject DataStreamSupporter Image RasterImage RasterCachedImage DjvuPage

Implements

IDisposable , IObjectWithBounds , IRasterImageArgb32PixelLoader , IRasterImageRawDataLoader , IHasXmpData , IHasMetadata , INotifyPropertyChanged

Membres heretats

RasterCachedImage.CacheData() , RasterCachedImage.Blend(Point, RasterImage, Rectangle, byte) , RasterCachedImage.Resize(int, int, ResizeType) , RasterCachedImage.Resize(int, int, ImageResizeSettings) , RasterCachedImage.RotateFlip(RotateFlipType) , RasterCachedImage.Rotate(float, bool, Color) , RasterCachedImage.Crop(Rectangle) , RasterCachedImage.Dither(DitheringMethod, int, IColorPalette) , RasterCachedImage.Grayscale() , RasterCachedImage.NormalizeHistogram() , RasterCachedImage.BinarizeFixed(byte) , RasterCachedImage.BinarizeOtsu() , RasterCachedImage.BinarizeBradley(double, int) , RasterCachedImage.BinarizeBradley(double) , RasterCachedImage.AdjustBrightness(int) , RasterCachedImage.AdjustContrast(float) , RasterCachedImage.AdjustGamma(float, float, float) , RasterCachedImage.AdjustGamma(float) , RasterCachedImage.OnCached() , RasterCachedImage.OnPaletteChanged(IColorPalette, IColorPalette) , RasterCachedImage.IsCached , RasterImage.xmpData , RasterImage.RemoveMetadata() , RasterImage.Save(Stream, ImageOptionsBase, Rectangle) , RasterImage.GetModifyDate(bool) , RasterImage.Dither(DitheringMethod, int) , RasterImage.Dither(DitheringMethod, int, IColorPalette) , RasterImage.GetDefaultPixels(Rectangle, IPartialArgb32PixelLoader) , RasterImage.GetDefaultRawData(Rectangle, IPartialRawDataLoader, RawDataSettings) , RasterImage.GetDefaultArgb32Pixels(Rectangle) , RasterImage.GetDefaultRawData(Rectangle, RawDataSettings) , RasterImage.GetArgb32Pixel(int, int) , RasterImage.GetPixel(int, int) , RasterImage.SetArgb32Pixel(int, int, int) , RasterImage.SetPixel(int, int, Color) , RasterImage.ReadScanLine(int) , RasterImage.ReadArgb32ScanLine(int) , RasterImage.WriteScanLine(int, Color[]) , RasterImage.WriteArgb32ScanLine(int, int[]) , RasterImage.LoadPartialArgb32Pixels(Rectangle, IPartialArgb32PixelLoader) , RasterImage.LoadPartialPixels(Rectangle, IPartialPixelLoader) , RasterImage.LoadArgb32Pixels(Rectangle) , RasterImage.LoadArgb64Pixels(Rectangle) , RasterImage.LoadPartialArgb64Pixels(Rectangle, IPartialArgb64PixelLoader) , RasterImage.LoadPixels(Rectangle) , RasterImage.LoadCmykPixels(Rectangle) , RasterImage.LoadCmyk32Pixels(Rectangle) , RasterImage.LoadRawData(Rectangle, RawDataSettings, IPartialRawDataLoader) , RasterImage.LoadRawData(Rectangle, Rectangle, RawDataSettings, IPartialRawDataLoader) , RasterImage.SaveRawData(byte[], int, Rectangle, RawDataSettings) , RasterImage.SaveArgb32Pixels(Rectangle, int[]) , RasterImage.SavePixels(Rectangle, Color[]) , RasterImage.SaveCmykPixels(Rectangle, CmykColor[]) , RasterImage.SaveCmyk32Pixels(Rectangle, int[]) , RasterImage.SetResolution(double, double) , RasterImage.SetPalette(IColorPalette, bool) , RasterImage.Resize(int, int, ImageResizeSettings) , RasterImage.Rotate(float, bool, Color) , RasterImage.Rotate(float) , RasterImage.BinarizeFixed(byte) , RasterImage.BinarizeOtsu() , RasterImage.BinarizeBradley(double) , RasterImage.BinarizeBradley(double, int) , RasterImage.Blend(Point, RasterImage, Rectangle, byte) , RasterImage.Blend(Point, RasterImage, byte) , RasterImage.Grayscale() , RasterImage.NormalizeHistogram() , RasterImage.AdjustBrightness(int) , RasterImage.AdjustContrast(float) , RasterImage.AdjustGamma(float, float, float) , RasterImage.AdjustGamma(float) , RasterImage.GetSkewAngle() , RasterImage.NormalizeAngle() , RasterImage.NormalizeAngle(bool, Color) , RasterImage.Filter(Rectangle, FilterOptionsBase) , RasterImage.ReplaceColor(Color, byte, Color) , RasterImage.ReplaceColor(int, byte, int) , RasterImage.ReplaceNonTransparentColors(Color) , RasterImage.ReplaceNonTransparentColors(int) , RasterImage.ToBitmap() , RasterImage.ReleaseManagedResources() , RasterImage.UpdateMetadata() , RasterImage.UpdateDimensions(int, int) , RasterImage.PremultiplyComponents , RasterImage.UseRawData , RasterImage.UpdateXmpData , RasterImage.XmpData , RasterImage.RawIndexedColorConverter , RasterImage.RawCustomColorConverter , RasterImage.RawFallbackIndex , RasterImage.RawDataSettings , RasterImage.UsePalette , RasterImage.RawDataFormat , RasterImage.RawLineSize , RasterImage.IsRawDataAvailable , RasterImage.HorizontalResolution , RasterImage.VerticalResolution , RasterImage.HasTransparentColor , RasterImage.HasAlpha , RasterImage.TransparentColor , RasterImage.ImageOpacity , RasterImage.DataLoader , Image.CanLoad(string) , Image.CanLoad(string, LoadOptions) , Image.CanLoad(Stream) , Image.CanLoad(Stream, LoadOptions) , Image.Create(ImageOptionsBase, int, int) , Image.Create(Image[]) , Image.Create(MultipageCreateOptions) , Image.Create(string[], bool) , Image.Create(string[]) , Image.Create(Image[], bool) , Image.GetFileFormat(string) , Image.GetFileFormat(Stream) , Image.GetFittingRectangle(Rectangle, int, int) , Image.GetFittingRectangle(Rectangle, int[], int, int) , Image.Load(string, LoadOptions) , Image.Load(string) , Image.Load(Stream, LoadOptions) , Image.Load(Stream) , Image.GetProportionalWidth(int, int, int) , Image.GetProportionalHeight(int, int, int) , Image.RemoveMetadata() , Image.CanSave(ImageOptionsBase) , Image.Resize(int, int) , Image.Resize(int, int, ResizeType) , Image.Resize(int, int, ImageResizeSettings) , Image.GetDefaultOptions(object[]) , Image.GetOriginalOptions() , Image.ResizeWidthProportionally(int) , Image.ResizeHeightProportionally(int) , Image.ResizeWidthProportionally(int, ResizeType) , Image.ResizeHeightProportionally(int, ResizeType) , Image.ResizeWidthProportionally(int, ImageResizeSettings) , Image.ResizeHeightProportionally(int, ImageResizeSettings) , Image.RotateFlip(RotateFlipType) , Image.Rotate(float) , Image.Crop(Rectangle) , Image.Crop(int, int, int, int) , Image.Save() , Image.Save(string) , Image.Save(string, ImageOptionsBase) , Image.Save(string, ImageOptionsBase, Rectangle) , Image.Save(Stream, ImageOptionsBase) , Image.Save(Stream, ImageOptionsBase, Rectangle) , Image.GetSerializedStream(ImageOptionsBase, Rectangle, out int) , Image.SetPalette(IColorPalette, bool) , Image.UpdateContainer(Image) , Image.GetCanNotSaveMessage(ImageOptionsBase) , Image.GetFitRectangle(Rectangle) , Image.GetImage2Export(ImageOptionsBase, Rectangle, IImageExporter) , Image.GetFitRectangle(Rectangle, int[]) , Image.OnPaletteChanged(IColorPalette, IColorPalette) , Image.OnPaletteChanging(IColorPalette, IColorPalette) , Image.ReleaseManagedResources() , Image.BitsPerPixel , Image.Bounds , Image.Container , Image.Height , Image.Palette , Image.UsePalette , Image.Size , Image.Width , Image.InterruptMonitor , Image.BufferSizeHint , Image.AutoAdjustPalette , Image.HasBackgroundColor , Image.FileFormat , Image.BackgroundColor , DataStreamSupporter.timeout , DataStreamSupporter.CacheData() , DataStreamSupporter.Save() , DataStreamSupporter.Save(Stream) , DataStreamSupporter.Save(string) , DataStreamSupporter.Save(string, bool) , DataStreamSupporter.SaveData(Stream) , DataStreamSupporter.ReleaseManagedResources() , DataStreamSupporter.OnDataStreamContainerChanging(StreamContainer) , DataStreamSupporter.DataStreamContainer , DataStreamSupporter.IsCached , DisposableObject.Dispose() , DisposableObject.ReleaseManagedResources() , DisposableObject.ReleaseUnmanagedResources() , DisposableObject.VerifyNotDisposed() , DisposableObject.Disposed , object.GetType() , object.MemberwiseClone() , object.ToString() , object.Equals(object?) , object.Equals(object?, object?) , object.ReferenceEquals(object?, object?) , object.GetHashCode()

Properties

BitsPerPixel

Obté les bits d’imatge per càlcul de píxels.

public override int BitsPerPixel { get; }

Valor de la propietat

int

Height

Obté l’alçada de la pàgina

public override int Height { get; }

Valor de la propietat

int

Image

Obtenir la imatge.

public DjvuRaster Image { get; }

Valor de la propietat

DjvuRaster

IsColor

Obté un valor que indica si aquesta instància és color.

public bool IsColor { get; }

Valor de la propietat

bool

PageNumber

Obté el número de pàgina.

public int PageNumber { get; }

Valor de la propietat

int

Examples

Aquest exemple mostra com carregar una imatge DJVU d’un flux de fitxers i imprimir informació sobre les pàgines.

string dir = "c:\\temp\\";

                                                                                                                // Load a DJVU image from a file stream.
                                                                                                                using (System.IO.Stream stream = System.IO.File.OpenRead(dir + "sample.djvu"))
                                                                                                                {
                                                                                                                    using (Aspose.Imaging.FileFormats.Djvu.DjvuImage djvuImage = new Aspose.Imaging.FileFormats.Djvu.DjvuImage(stream))
                                                                                                                    {
                                                                                                                        System.Console.WriteLine("The total number of pages: {0}", djvuImage.Pages.Length);
                                                                                                                        System.Console.WriteLine("The active page number:    {0}", djvuImage.ActivePage.PageNumber);
                                                                                                                        System.Console.WriteLine("The first page number:     {0}", djvuImage.FirstPage.PageNumber);
                                                                                                                        System.Console.WriteLine("The last page number:      {0}", djvuImage.LastPage.PageNumber);

                                                                                                                        foreach (Aspose.Imaging.FileFormats.Djvu.DjvuPage djvuPage in djvuImage.Pages)
                                                                                                                        {
                                                                                                                            System.Console.WriteLine("--------------------------------------------------");
                                                                                                                            System.Console.WriteLine("Page number:     {0}", djvuPage.PageNumber);
                                                                                                                            System.Console.WriteLine("Page size:       {0}", djvuPage.Size);
                                                                                                                            System.Console.WriteLine("Page raw format: {0}", djvuPage.RawDataFormat);
                                                                                                                        }
                                                                                                                    }
                                                                                                                }

                                                                                                                //The output may look like this:
                                                                                                                //The total number of pages: 2
                                                                                                                //The active page number:    1
                                                                                                                //The first page number:     1
                                                                                                                //The last page number:      2
                                                                                                                //--------------------------------------------------
                                                                                                                //Page number:     1
                                                                                                                //Page size:       { Width = 2481, Height = 3508}
                                                                                                                //Page raw format: RgbIndexed1Bpp, used channels: 1
                                                                                                                //--------------------------------------------------
                                                                                                                //Page number:     2
                                                                                                                //Page size:       { Width = 2481, Height = 3508}
                                                                                                                //Page raw format: RgbIndexed1Bpp, used channels: 1

ParentImage

Obtenir la imatge parent la pàgina pertany a

public DjvuImage ParentImage { get; }

Valor de la propietat

DjvuImage

ThumbnailImage

Obté o posa la imatge de miniatura per a la pàgina

public DjvuRaster ThumbnailImage { get; set; }

Valor de la propietat

DjvuRaster

Width

Obtenir l’amplada de la pàgina

public override int Width { get; }

Valor de la propietat

int

Methods

ExtractThumbnailImage()

S’extreu la imatge de la petita imatge a la pàgina de Djvu.

public DjvuRaster ExtractThumbnailImage()

Returns

DjvuRaster

La imatge del Djvu raster.

GetBackgroundImage()

Obtenir la imatge de fons.

public DjvuRaster GetBackgroundImage()

Returns

DjvuRaster

El bitmap

GetForegroundImage(Int)

Obté la imatge de l’avantguarda per a la pàgina

public DjvuRaster GetForegroundImage(int subsample = 1)

Parameters

subsample int

El subexemple.

Returns

DjvuRaster

Imatge Bitmap

GetTextForLocation(Rectangle)

Obtenir el text per a la ubicació rectangular

public string GetTextForLocation(Rectangle rect)

Parameters

rect Rectangle

La ubicació recta.

Returns

string

Text trobat a la localització

GetTextImage(Int)

Obtenir la imatge del text.

public DjvuRaster GetTextImage(int subsample = 1)

Parameters

subsample int

El subexemple.

Returns

DjvuRaster

El bitmap

ReleaseManagedResources()

Assegureu-vos que no es lliuren recursos no gestionats aquí, ja que poden haver estat ja alliberats.

protected override void ReleaseManagedResources()

SaveData(Stream)

Estalvia les dades.

protected override void SaveData(Stream stream)

Parameters

stream Stream

El flux per salvar les dades a.

Exceptions

NotImplementedException

UpdateDimensions(Int, Int)

Actualitza les dimensions de la imatge.

protected override void UpdateDimensions(int newWidth, int newHeight)

Parameters

newWidth int

La nova imatge d’amplada.

newHeight int

Alçada de la nova imatge.

Exceptions

NotImplementedException

PageExportedAction

Es produeix quan [pàgina d’acció exportada].

public static event OnPageExportedAction PageExportedAction

Tipus d’esdeveniment

OnPageExportedAction

PropertyChanged

Es produeix quan un valor de la propietat canvia.

public event PropertyChangedEventHandler PropertyChanged

Tipus d’esdeveniment

PropertyChangedEventHandler

 Català