Class DjvuImage

[JsonObject(MemberSerialization.OptIn)]
public sealed class DjvuImage : RasterCachedMultipageImage, IDisposable, IObjectWithBounds, IRasterImageArgb32PixelLoader, IRasterImageRawDataLoader, IHasXmpData, IHasMetadata, IMultipageImage, INotifyPropertyChanged

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))
                                                                              {
                                                                                  // Save each page as an individual PNG image.
                                                                                  foreach (Aspose.Imaging.FileFormats.Djvu.DjvuPage djvuPage in djvuImage.Pages)
                                                                                  {
                                                                                      // Generate a file name based on the page number.
                                                                                      string fileName = string.Format("sample.{0}.png", djvuPage.PageNumber);
                                                                                      djvuPage.Save(dir + fileName, new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                  }
                                                                              }
                                                                          }

public DjvuImage(Stream stream)

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))
                                                                              {
                                                                                  // Save each page as an individual PNG image.
                                                                                  foreach (Aspose.Imaging.FileFormats.Djvu.DjvuPage djvuPage in djvuImage.Pages)
                                                                                  {
                                                                                      // Generate a file name based on the page number.
                                                                                      string fileName = string.Format("sample.{0}.png", djvuPage.PageNumber);
                                                                                      djvuPage.Save(dir + fileName, new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                  }
                                                                              }
                                                                          }

public DjvuImage(Stream stream, LoadOptions loadOptions)

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

                                                                                                                    // Load a DJVU image from a file stream.
                                                                                                                    using (System.IO.Stream stream = System.IO.File.OpenRead(dir + "sample.djvu"))
                                                                                                                    {
                                                                                                                        // The max allowed size for all internal buffers is 1MB.
                                                                                                                        Aspose.Imaging.LoadOptions loadOptions = new Aspose.Imaging.LoadOptions();
                                                                                                                        loadOptions.BufferSizeHint = 1 * 1024 * 1024;

                                                                                                                        using (Aspose.Imaging.FileFormats.Djvu.DjvuImage djvuImage = new Aspose.Imaging.FileFormats.Djvu.DjvuImage(stream, loadOptions))
                                                                                                                        {
                                                                                                                            // Save each page as an individual PNG image.
                                                                                                                            foreach (Aspose.Imaging.FileFormats.Djvu.DjvuPage djvuPage in djvuImage.Pages)
                                                                                                                            {
                                                                                                                                // Generate a file name based on the page number.
                                                                                                                                string fileName = string.Format("sample.{0}.png", djvuPage.PageNumber);
                                                                                                                                djvuPage.Save(dir + fileName, new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                                                            }
                                                                                                                        }
                                                                                                                    }

public DjvuPage ActivePage { get; set; }

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

public DjvuPage[] DjvuPages { get; }

public override FileFormat FileFormat { get; }

public DjvuPage FirstPage { get; }

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

public override bool HasAlpha { get; }

public int Identifier { get; }

public DjvuPage LastPage { get; }

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

public DjvuPage NextPage { get; }

public override int PageCount { get; }

public override Image[] Pages { get; }

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))
                                                                              {
                                                                                  // Save each page as an individual PNG image.
                                                                                  foreach (Aspose.Imaging.FileFormats.Djvu.DjvuPage djvuPage in djvuImage.Pages)
                                                                                  {
                                                                                      // Generate a file name based on the page number.
                                                                                      string fileName = string.Format("sample.{0}.png", djvuPage.PageNumber);
                                                                                      djvuPage.Save(dir + fileName, new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                  }
                                                                              }
                                                                          }

public DjvuPage PreviousPage { get; }

public override void AdjustBrightness(int brightness)

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

                                                                                using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                                {
                                                                                    Aspose.Imaging.FileFormats.Djvu.DjvuImage djvuImage = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)image;

                                                                                    // Set the brightness value. The accepted values of brightness are in the range [-255, 255].
                                                                                    djvuImage.AdjustBrightness(50);
                                                                                    djvuImage.Save(dir + "sample.AdjustBrightness.png", new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                }

public override void AdjustContrast(float contrast)

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

                                                                              using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                              {
                                                                                  Aspose.Imaging.FileFormats.Djvu.DjvuImage djvuImage = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)image;

                                                                                  // Set the contrast value. The accepted values of contrast are in the range [-100f, 100f].
                                                                                  djvuImage.AdjustContrast(50f);
                                                                                  djvuImage.Save(dir + "sample.AdjustContrast.png", new Aspose.Imaging.ImageOptions.PngOptions());
                                                                              }

public override void AdjustGamma(float gamma)

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

                                                                           using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                           {
                                                                               Aspose.Imaging.FileFormats.Djvu.DjvuImage djvuImage = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)image;

                                                                               // Set gamma coefficient for red, green and blue channels.
                                                                               djvuImage.AdjustGamma(2.5f);
                                                                               djvuImage.Save(dir + "sample.AdjustGamma.png", new Aspose.Imaging.ImageOptions.PngOptions());
                                                                           }

public override void AdjustGamma(float gammaRed, float gammaGreen, float gammaBlue)

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

                                                                                                                                using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                                                                                {
                                                                                                                                    Aspose.Imaging.FileFormats.Djvu.DjvuImage djvuImage = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)image;

                                                                                                                                    // Set individual gamma coefficients for red, green and blue channels.
                                                                                                                                    djvuImage.AdjustGamma(1.5f, 2.5f, 3.5f);
                                                                                                                                    djvuImage.Save(dir + "sample.AdjustGamma.png", new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                                                                }

public override void BinarizeBradley(double brightnessDifference, int windowSize)

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

                                                                                                                                                                                                using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                                                                                                                                                {
                                                                                                                                                                                                    Aspose.Imaging.FileFormats.Djvu.DjvuImage djvuImage = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)image;

                                                                                                                                                                                                    // Binarize the image with a brightness difference of 5. The brightness is a difference between a pixel and the average of an 10 x 10 window of pixels centered around this pixel.
                                                                                                                                                                                                    djvuImage.BinarizeBradley(5, 10);
                                                                                                                                                                                                    djvuImage.Save(dir + "sample.BinarizeBradley5_10x10.png", new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                                                                                                                                }

public override void BinarizeFixed(byte threshold)

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

                                                                                                                                                using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                                                                                                {
                                                                                                                                                    Aspose.Imaging.FileFormats.Djvu.DjvuImage djvuImage = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)image;

                                                                                                                                                    // Binarize the image with a threshold value of 127.
                                                                                                                                                    // If a corresponding gray value of a pixel is greater than 127, a value of 255 will be assigned to it, 0 otherwise.
                                                                                                                                                    djvuImage.BinarizeFixed(127);
                                                                                                                                                    djvuImage.Save(dir + "sample.BinarizeFixed.png", new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                                                                                }

public override void BinarizeOtsu()

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

                                                                                                                                         using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                                                                                         {
                                                                                                                                             Aspose.Imaging.FileFormats.Djvu.DjvuImage djvuImage = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)image;

                                                                                                                                             // Binarize the image with Otsu thresholding.
                                                                                                                                             djvuImage.BinarizeOtsu();
                                                                                                                                             djvuImage.Save(dir + "sample.BinarizeOtsu.png", new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                                                                         }

public override void CacheData()

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

                                                                              // Load an image from a DJVU file.
                                                                              using (Aspose.Imaging.FileFormats.Djvu.DjvuImage image = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                              {
                                                                                  // This call caches all the pages so that no additional data loading will be performed from the underlying data stream.
                                                                                  image.CacheData();

                                                                                  // Or you can cache the pages individually.
                                                                                  foreach (Aspose.Imaging.FileFormats.Djvu.DjvuPage page in image.Pages)
                                                                                  {
                                                                                      page.CacheData();
                                                                                  }
                                                                              }

public override void Crop(Rectangle rectangle)

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

                                                                                                                    using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                                                                    {
                                                                                                                        Aspose.Imaging.FileFormats.Djvu.DjvuImage djvuImage = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)image;

                                                                                                                        // Crop the image. The cropping area is the rectangular central area of the image.
                                                                                                                        Aspose.Imaging.Rectangle area = new Aspose.Imaging.Rectangle(djvuImage.Width / 4, djvuImage.Height / 4, djvuImage.Width / 2, djvuImage.Height / 2);
                                                                                                                        djvuImage.Crop(area);

                                                                                                                        // Save the cropped image to PNG
                                                                                                                        djvuImage.Save(dir + "sample.Crop.png", new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                                                    }

public override void Crop(int leftShift, int rightShift, int topShift, int bottomShift)

public override void Dither(DitheringMethod ditheringMethod, int bitsCount, IColorPalette customPalette)

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

                                                                                                                             using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                                                                             {
                                                                                                                                 Aspose.Imaging.FileFormats.Djvu.DjvuImage dicomImage = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)image;

                                                                                                                                 // Perform threshold dithering using 4-bit color palette which contains 16 colors.
                                                                                                                                 // The more bits specified the higher quality and the bigger size of the output image.
                                                                                                                                 // Note that only 1-bit, 4-bit and 8-bit palettes are supported at the moment.
                                                                                                                                 dicomImage.Dither(Aspose.Imaging.DitheringMethod.ThresholdDithering, 4, null);

                                                                                                                                 dicomImage.Save(dir + "sample.ThresholdDithering4.png", new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                                                             }

                                                                                                                             using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                                                                             {
                                                                                                                                 Aspose.Imaging.FileFormats.Djvu.DjvuImage dicomImage = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)image;

                                                                                                                                 // Perform floyd dithering using 1-bit color palette which contains only 2 colors - black and white.
                                                                                                                                 // The more bits specified the higher quality and the bigger size of the output image.
                                                                                                                                 // Note that only 1-bit, 4-bit and 8-bit palettes are supported at the moment.
                                                                                                                                 dicomImage.Dither(Aspose.Imaging.DitheringMethod.FloydSteinbergDithering, 1, null);

                                                                                                                                 dicomImage.Save(dir + "sample.FloydSteinbergDithering1.png", new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                                                             }

public override void Filter(Rectangle rectangle, FilterOptionsBase options)

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

                                                                                  using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                                  {
                                                                                      Aspose.Imaging.FileFormats.Djvu.DjvuImage djvuImage = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)image;

                                                                                      // Apply a median filter with a rectangle size of 5 to the entire image.
                                                                                      djvuImage.Filter(djvuImage.Bounds, new Aspose.Imaging.ImageFilters.FilterOptions.MedianFilterOptions(5));
                                                                                      djvuImage.Save(dir + "sample.MedianFilter.png", new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                  }

                                                                                  using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                                  {
                                                                                      Aspose.Imaging.FileFormats.Djvu.DjvuImage djvuImage = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)image;

                                                                                      // Apply a bilateral smoothing filter with a kernel size of 5 to the entire image.
                                                                                      djvuImage.Filter(djvuImage.Bounds, new Aspose.Imaging.ImageFilters.FilterOptions.BilateralSmoothingFilterOptions(5));
                                                                                      djvuImage.Save(dir + "sample.BilateralSmoothingFilter.png", new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                  }

                                                                                  using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                                  {
                                                                                      Aspose.Imaging.FileFormats.Djvu.DjvuImage djvuImage = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)image;

                                                                                      // Apply a Gaussian blur filter with a radius of 5 and a sigma value of 4.0 to the entire image.
                                                                                      djvuImage.Filter(djvuImage.Bounds, new Aspose.Imaging.ImageFilters.FilterOptions.GaussianBlurFilterOptions(5, 4.0));
                                                                                      djvuImage.Save(dir + "sample.GaussianBlurFilter.png", new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                  }

                                                                                  using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                                  {
                                                                                      Aspose.Imaging.FileFormats.Djvu.DjvuImage djvuImage = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)image;

                                                                                      // Apply a Gauss-Wiener filter with a radius of 5 and a smooth value of 4.0 to the entire image.
                                                                                      djvuImage.Filter(djvuImage.Bounds, new Aspose.Imaging.ImageFilters.FilterOptions.GaussWienerFilterOptions(5, 4.0));
                                                                                      djvuImage.Save(dir + "sample.GaussWienerFilter.png", new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                  }

                                                                                  using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                                  {
                                                                                      Aspose.Imaging.FileFormats.Djvu.DjvuImage djvuImage = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)image;

                                                                                      // Apply a motion wiener filter with a length of 5, a smooth value of 4.0 and an angle of 90.0 degrees to the entire image.
                                                                                      djvuImage.Filter(djvuImage.Bounds, new Aspose.Imaging.ImageFilters.FilterOptions.MotionWienerFilterOptions(10, 1.0, 90.0));
                                                                                      djvuImage.Save(dir + "sample.MotionWienerFilter.png", new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                  }

                                                                                  using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                                  {
                                                                                      Aspose.Imaging.FileFormats.Djvu.DjvuImage djvuImage = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)image;

                                                                                      // Apply a sharpen filter with a kernel size of 5 and a sigma value of 4.0 to the entire image.
                                                                                      djvuImage.Filter(djvuImage.Bounds, new Aspose.Imaging.ImageFilters.FilterOptions.SharpenFilterOptions(5, 4.0));
                                                                                      djvuImage.Save(dir + "sample.SharpenFilter.png", new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                  }

public override void Grayscale()

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

                                                                                                                                                                                                   using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                                                                                                                                                   {
                                                                                                                                                                                                       Aspose.Imaging.FileFormats.Djvu.DjvuImage djvuImage = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)image;

                                                                                                                                                                                                       djvuImage.Grayscale();
                                                                                                                                                                                                       djvuImage.Save(dir + "sample.Grayscale.png", new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                                                                                                                                   }

public static DjvuImage LoadDocument(Stream stream)

public static DjvuImage LoadDocument(Stream stream, LoadOptions loadOptions)

protected override void ReleaseManagedResources()

public override void Resize(int newWidth, int newHeight, ResizeType resizeType)

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

                                                                                         using (Aspose.Imaging.FileFormats.Djvu.DjvuImage image = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                                         {
                                                                                             // Scale up by 2 times using Nearest Neighbour resampling.
                                                                                             image.Resize(image.Width* 2, image.Height* 2, Aspose.Imaging.ResizeType.NearestNeighbourResample);

                                                                                             // Save to PNG with default options.
                                                                                             image.Save(dir + "upsample.nearestneighbour.png", new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                         }

                                                                                         using (Aspose.Imaging.FileFormats.Djvu.DjvuImage image = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                                         {
                                                                                             // Scale down by 2 times using Nearest Neighbour resampling.
                                                                                             image.Resize(image.Width / 2, image.Height / 2, Aspose.Imaging.ResizeType.NearestNeighbourResample);

                                                                                             // Save to PNG with default options.
                                                                                             image.Save(dir + "downsample.nearestneighbour.png", new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                         }

                                                                                         using (Aspose.Imaging.FileFormats.Djvu.DjvuImage image = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                                         {
                                                                                             // Scale up by 2 times using Bilinear resampling.
                                                                                             image.Resize(image.Width* 2, image.Height* 2, Aspose.Imaging.ResizeType.BilinearResample);

                                                                                             // Save to PNG with default options.
                                                                                             image.Save(dir + "upsample.bilinear.png", new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                         }

                                                                                         using (Aspose.Imaging.FileFormats.Djvu.DjvuImage image = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                                         {
                                                                                             // Scale down by 2 times using Bilinear resampling.
                                                                                             image.Resize(image.Width / 2, image.Height / 2, Aspose.Imaging.ResizeType.BilinearResample);

                                                                                             // Save to PNG with default options.
                                                                                             image.Save(dir + "downsample.bilinear.png", new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                         }

public override void Resize(int newWidth, int newHeight, ImageResizeSettings settings)

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

                                                                                          Aspose.Imaging.ImageResizeSettings resizeSettings = new Aspose.Imaging.ImageResizeSettings();

                                                                                          // The adaptive algorithm based on weighted and blended rational function and lanczos3 interpolation.
                                                                                          resizeSettings.Mode = Aspose.Imaging.ResizeType.AdaptiveResample;

                                                                                          // The small rectangular filter
                                                                                          resizeSettings.FilterType = Aspose.Imaging.ImageFilterType.SmallRectangular;

                                                                                          // The number of colors in the palette.
                                                                                          resizeSettings.EntriesCount = 256;

                                                                                          // The color quantization is not used
                                                                                          resizeSettings.ColorQuantizationMethod = ColorQuantizationMethod.None;

                                                                                          // The euclidian method
                                                                                          resizeSettings.ColorCompareMethod = ColorCompareMethod.Euclidian;

                                                                                          using (Aspose.Imaging.Image image = (Aspose.Imaging.Image)Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                                          {
                                                                                              Aspose.Imaging.FileFormats.Djvu.DjvuImage djvuImage = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)image;

                                                                                              // Scale down by 2 times using adaptive resampling.
                                                                                              djvuImage.Resize(image.Width / 2, image.Height / 2, resizeSettings);

                                                                                              // Save to PNG
                                                                                              djvuImage.Save(dir + "downsample.adaptive.png", new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                          }

public override void ResizeHeightProportionally(int newHeight, ResizeType resizeType)

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

                                                                                                                                                                             using (Aspose.Imaging.FileFormats.Djvu.DjvuImage image = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                                                                                                                             {
                                                                                                                                                                                 // Scale up by 2 times using Nearest Neighbour resampling.
                                                                                                                                                                                 image.ResizeHeightProportionally(image.Height* 2, Aspose.Imaging.ResizeType.NearestNeighbourResample);

                                                                                                                                                                                 // Save to PNG with the default options.
                                                                                                                                                                                 image.Save(dir + "upsample.nearestneighbour.png", new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                                                                                                             }

                                                                                                                                                                             using (Aspose.Imaging.FileFormats.Djvu.DjvuImage image = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                                                                                                                             {
                                                                                                                                                                                 // Scale down by 2 times using Nearest Neighbour resampling.
                                                                                                                                                                                 image.ResizeHeightProportionally(image.Height / 2, Aspose.Imaging.ResizeType.NearestNeighbourResample);

                                                                                                                                                                                 // Save to PNG with the default options.
                                                                                                                                                                                 image.Save(dir + "downsample.nearestneighbour.png", new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                                                                                                             }

                                                                                                                                                                             using (Aspose.Imaging.FileFormats.Djvu.DjvuImage image = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                                                                                                                             {
                                                                                                                                                                                 // Scale up by 2 times using Bilinear resampling.
                                                                                                                                                                                 image.ResizeHeightProportionally(image.Height* 2, Aspose.Imaging.ResizeType.BilinearResample);

                                                                                                                                                                                 // Save to PNG with the default options.
                                                                                                                                                                                 image.Save(dir + "upsample.bilinear.png", new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                                                                                                             }

                                                                                                                                                                             using (Aspose.Imaging.FileFormats.Djvu.DjvuImage image = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                                                                                                                             {
                                                                                                                                                                                 // Scale down by 2 times using Bilinear resampling.
                                                                                                                                                                                 image.ResizeHeightProportionally(image.Height / 2, Aspose.Imaging.ResizeType.BilinearResample);

                                                                                                                                                                                 // Save to PNG with the default options.
                                                                                                                                                                                 image.Save(dir + "downsample.bilinear.png", new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                                                                                                             }

public override void ResizeWidthProportionally(int newWidth, ResizeType resizeType)

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

                                                                                                                                                                             using (Aspose.Imaging.FileFormats.Djvu.DjvuImage image = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                                                                                                                             {
                                                                                                                                                                                 // Scale up by 2 times using Nearest Neighbour resampling.
                                                                                                                                                                                 image.ResizeWidthProportionally(image.Width* 2, Aspose.Imaging.ResizeType.NearestNeighbourResample);

                                                                                                                                                                                 // Save to PNG with the default options.
                                                                                                                                                                                 image.Save(dir + "upsample.nearestneighbour.png", new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                                                                                                             }

                                                                                                                                                                             using (Aspose.Imaging.FileFormats.Djvu.DjvuImage image = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                                                                                                                             {
                                                                                                                                                                                 // Scale down by 2 times using Nearest Neighbour resampling.
                                                                                                                                                                                 image.ResizeWidthProportionally(image.Width / 2, Aspose.Imaging.ResizeType.NearestNeighbourResample);

                                                                                                                                                                                 // Save to PNG with the default options.
                                                                                                                                                                                 image.Save(dir + "downsample.nearestneighbour.png", new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                                                                                                             }

                                                                                                                                                                             using (Aspose.Imaging.FileFormats.Djvu.DjvuImage image = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                                                                                                                             {
                                                                                                                                                                                 // Scale up by 2 times using Bilinear resampling.
                                                                                                                                                                                 image.ResizeWidthProportionally(image.Width* 2, Aspose.Imaging.ResizeType.BilinearResample);

                                                                                                                                                                                 // Save to PNG with the default options.
                                                                                                                                                                                 image.Save(dir + "upsample.bilinear.png", new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                                                                                                             }

                                                                                                                                                                             using (Aspose.Imaging.FileFormats.Djvu.DjvuImage image = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                                                                                                                             {
                                                                                                                                                                                 // Scale down by 2 times using Bilinear resampling.
                                                                                                                                                                                 image.ResizeWidthProportionally(image.Width / 2, Aspose.Imaging.ResizeType.BilinearResample);

                                                                                                                                                                                 // Save to PNG with the default options.
                                                                                                                                                                                 image.Save(dir + "downsample.bilinear.png", new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                                                                                                             }

public override void Rotate(float angle, bool resizeProportionally, Color backgroundColor)

public override void RotateFlip(RotateFlipType rotateFlipType)

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

                                                                                                                                              Aspose.Imaging.RotateFlipType[] rotateFlipTypes = new Aspose.Imaging.RotateFlipType[]
                                                                                                                                              {
                                                                                                                                                  Aspose.Imaging.RotateFlipType.Rotate90FlipNone,
                                                                                                                                                  Aspose.Imaging.RotateFlipType.Rotate90FlipX,
                                                                                                                                                  Aspose.Imaging.RotateFlipType.Rotate90FlipXY,
                                                                                                                                                  Aspose.Imaging.RotateFlipType.Rotate90FlipY,
                                                                                                                                              };

                                                                                                                                              foreach (Aspose.Imaging.RotateFlipType rotateFlipType in rotateFlipTypes)
                                                                                                                                              {
                                                                                                                                                  // Rotate, flip and save to the output file.
                                                                                                                                                  using (Aspose.Imaging.FileFormats.Djvu.DjvuImage image = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)Aspose.Imaging.Image.Load(dir + "sample.djvu"))
                                                                                                                                                  {
                                                                                                                                                      image.RotateFlip(rotateFlipType);
                                                                                                                                                      image.Save(dir + "sample." + rotateFlipType + ".png", new Aspose.Imaging.ImageOptions.PngOptions());
                                                                                                                                                  }
                                                                                                                                              }

protected override void SaveData(Stream stream)

protected override void UpdateDimensions(int newWidth, int newHeight)

public event PropertyChangedEventHandler PropertyChanged