Class Jpeg2000Options
Pôvodný názov: Aspose.Imaging.ImageOptions Zhromaždenie: Aspose.Imaging.dll (25.4.0)
Vytvorte súbory s obrázkom JPEG2000 (JP2) s našou API pomocou pokročilých technológií waveletpre kódovanie obsahu bez straty. výhody podpory pre rôzne kodeky, vrátanenezvratné a bez straty kompresie, ako aj kontajnery metadata XMP, ktoré zabezpečujúRozmanitosť a vysokokvalitná tvorba obrazu prispôsobená vašim potrebám.
public class Jpeg2000Options : ImageOptionsBase, IDisposable, IHasXmpData, IHasMetadata, ICloneableInheritance
object ← DisposableObject ← ImageOptionsBase ← Jpeg2000Options
Implements
IDisposable , IHasXmpData , IHasMetadata , ICloneable
Z dedičných členov
ImageOptionsBase.Clone() , ImageOptionsBase.ReleaseManagedResources() , ImageOptionsBase.KeepMetadata , ImageOptionsBase.XmpData , ImageOptionsBase.Source , ImageOptionsBase.Palette , ImageOptionsBase.ResolutionSettings , ImageOptionsBase.VectorRasterizationOptions , ImageOptionsBase.BufferSizeHint , ImageOptionsBase.MultiPageOptions , ImageOptionsBase.FullFrame , ImageOptionsBase.ProgressEventHandler , 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()
Examples
Nasledujúci príklad ukazuje, ako previesť viacstránkový vektorový obrázok do formátu JPEG 2000 vo všeobecnosti bez odkazu na konkrétny typ obrazu.
string dir = "C:\\aspose.imaging\\net\\misc\\ImagingReleaseQATester\\Tests\\testdata\\2548";
string inputFilePath = System.IO.Path.Combine(dir, "Multipage.cdr");
string outputFilePath = System.IO.Path.Combine(dir, "Multipage.cdr.j2k");
Aspose.Imaging.ImageOptionsBase exportOptions = new Aspose.Imaging.ImageOptions.Jpeg2000Options();
using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(inputFilePath))
{
exportOptions.MultiPageOptions = null;
// Export only first two pages. In fact, only one page will be rasterized because JPEG 2000 is not a multi-page format.
Aspose.Imaging.IMultipageImage multipageImage = image as Aspose.Imaging.IMultipageImage;
if (multipageImage != null && (multipageImage.Pages != null && multipageImage.PageCount > 2))
{
exportOptions.MultiPageOptions = new Aspose.Imaging.ImageOptions.MultiPageOptions(new Aspose.Imaging.IntRange(0, 2));
}
if (image is Aspose.Imaging.VectorImage)
{
exportOptions.VectorRasterizationOptions = (Aspose.Imaging.ImageOptions.VectorRasterizationOptions)image.GetDefaultOptions(new object[] { Aspose.Imaging.Color.White, image.Width, image.Height });
exportOptions.VectorRasterizationOptions.TextRenderingHint = Aspose.Imaging.TextRenderingHint.SingleBitPerPixel;
exportOptions.VectorRasterizationOptions.SmoothingMode = Aspose.Imaging.SmoothingMode.None;
}
image.Save(outputFilePath, exportOptions);
}Constructors
Jpeg2000Options()
Initalizuje novú inštanciu triedy Aspose.Imaging.ImageOptions.Jpeg2000Ops.
public Jpeg2000Options()Jpeg2000Options(Jpeg2000Options)
Initalizuje novú inštanciu triedy Aspose.Imaging.ImageOptions.Jpeg2000Ops.
public Jpeg2000Options(Jpeg2000Options jpeg2000Options)Parameters
jpeg2000Options Jpeg2000Options
Možnosti formátovania súborov Jpeg2000 kopírovať nastavenia z.
Properties
Codec
Získajte alebo nastavíte kódok JPEG2000
public Jpeg2000Codec Codec { get; set; }Hodnota nehnuteľnosti
Examples
Tento príklad ukazuje, ako vytvoriť obrázok PNG a uložiť ho do JPEG2000 s požadovanými možnosťami.
string dir = "c:\\temp\\";
// Create a PNG image of 100x100 px.
using (Aspose.Imaging.FileFormats.Png.PngImage pngImage = new Aspose.Imaging.FileFormats.Png.PngImage(100, 100))
{
Aspose.Imaging.Graphics graphics = new Aspose.Imaging.Graphics(pngImage);
// Fill the entire image in red.
Aspose.Imaging.Brushes.SolidBrush brush = new Aspose.Imaging.Brushes.SolidBrush(Aspose.Imaging.Color.Red);
graphics.FillRectangle(brush, pngImage.Bounds);
Aspose.Imaging.ImageOptions.Jpeg2000Options saveOptions = new Aspose.Imaging.ImageOptions.Jpeg2000Options();
// Use the irreversible Discrete Wavelet Transform 9-7
saveOptions.Irreversible = true;
// JP2 is the "container" format for JPEG 2000 codestreams.
// J2K is raw compressed data, without a wrapper.
saveOptions.Codec = Imaging.FileFormats.Jpeg2000.Jpeg2000Codec.J2K;
// Save to a file
pngImage.Save(dir + "output.j2k", saveOptions);
}Tento príklad ukazuje, ako vytvoriť obrázok JPEG2000 s požadovanými možnosťami a uložiť ho do súboru.
string dir = "c:\\temp\\";
Aspose.Imaging.ImageOptions.Jpeg2000Options createOptions = new Aspose.Imaging.ImageOptions.Jpeg2000Options();
// Use the irreversible Discrete Wavelet Transform 9-7
createOptions.Irreversible = true;
// JP2 is the "container" format for JPEG 2000 codestreams.
// J2K is raw compressed data, without a wrapper.
createOptions.Codec = Imaging.FileFormats.Jpeg2000.Jpeg2000Codec.J2K;
// Create a JPEG2000 image of 100x100 px.
using (Aspose.Imaging.FileFormats.Jpeg2000.Jpeg2000Image jpeg2000Image = new Aspose.Imaging.FileFormats.Jpeg2000.Jpeg2000Image(100, 100, createOptions))
{
Aspose.Imaging.Graphics graphics = new Aspose.Imaging.Graphics(jpeg2000Image);
// Fill the entire image in red.
Aspose.Imaging.Brushes.SolidBrush brush = new Aspose.Imaging.Brushes.SolidBrush(Aspose.Imaging.Color.Red);
graphics.FillRectangle(brush, jpeg2000Image.Bounds);
// Save to a file
jpeg2000Image.Save(dir + "sample.output.j2k");
}Comments
Získajte alebo nastavíte Jpeg komentárov.
public string[] Comments { get; set; }Hodnota nehnuteľnosti
string []
CompressionRatios
Získajte alebo nastavíte pomer kompresie.Rôzne pomery kompresie pre následné vrstvy.Rata určená pre každú úroveň kvality je požadovanáKompresný faktorZníženie potrebných pomeroch.
public int[] CompressionRatios { get; set; }Hodnota nehnuteľnosti
int []
Irreversible
Získajte alebo nastavíte hodnotu, ktorá naznačuje, či použijete nezvratný DWT 9-7 (skutočný) alebo bez straty DWT 5-3 kompresiu (default).
public bool Irreversible { get; set; }Hodnota nehnuteľnosti
Examples
Tento príklad ukazuje, ako vytvoriť obrázok PNG a uložiť ho do JPEG2000 s požadovanými možnosťami.
string dir = "c:\\temp\\";
// Create a PNG image of 100x100 px.
using (Aspose.Imaging.FileFormats.Png.PngImage pngImage = new Aspose.Imaging.FileFormats.Png.PngImage(100, 100))
{
Aspose.Imaging.Graphics graphics = new Aspose.Imaging.Graphics(pngImage);
// Fill the entire image in red.
Aspose.Imaging.Brushes.SolidBrush brush = new Aspose.Imaging.Brushes.SolidBrush(Aspose.Imaging.Color.Red);
graphics.FillRectangle(brush, pngImage.Bounds);
Aspose.Imaging.ImageOptions.Jpeg2000Options saveOptions = new Aspose.Imaging.ImageOptions.Jpeg2000Options();
// Use the irreversible Discrete Wavelet Transform 9-7
saveOptions.Irreversible = true;
// JP2 is the "container" format for JPEG 2000 codestreams.
// J2K is raw compressed data, without a wrapper.
saveOptions.Codec = Imaging.FileFormats.Jpeg2000.Jpeg2000Codec.J2K;
// Save to a file
pngImage.Save(dir + "output.j2k", saveOptions);
}Tento príklad ukazuje, ako vytvoriť obrázok JPEG2000 s požadovanými možnosťami a uložiť ho do súboru.
string dir = "c:\\temp\\";
Aspose.Imaging.ImageOptions.Jpeg2000Options createOptions = new Aspose.Imaging.ImageOptions.Jpeg2000Options();
// Use the irreversible Discrete Wavelet Transform 9-7
createOptions.Irreversible = true;
// JP2 is the "container" format for JPEG 2000 codestreams.
// J2K is raw compressed data, without a wrapper.
createOptions.Codec = Imaging.FileFormats.Jpeg2000.Jpeg2000Codec.J2K;
// Create a JPEG2000 image of 100x100 px.
using (Aspose.Imaging.FileFormats.Jpeg2000.Jpeg2000Image jpeg2000Image = new Aspose.Imaging.FileFormats.Jpeg2000.Jpeg2000Image(100, 100, createOptions))
{
Aspose.Imaging.Graphics graphics = new Aspose.Imaging.Graphics(jpeg2000Image);
// Fill the entire image in red.
Aspose.Imaging.Brushes.SolidBrush brush = new Aspose.Imaging.Brushes.SolidBrush(Aspose.Imaging.Color.Red);
graphics.FillRectangle(brush, jpeg2000Image.Bounds);
// Save to a file
jpeg2000Image.Save(dir + "sample.output.j2k");
}