Class Jpeg2000Options
Nama dari : Aspose.Imaging.ImageOptions Pengumpulan: Aspose.Imaging.dll (25.4.0)
Mencipta file gambar JPEG2000 (JP2) dengan API kami, menggunakan teknologi wavelet canggihuntuk kode konten tanpa kerugian. manfaat dari dukungan untuk berbagai codec, termasukkompresi irreversible dan tanpa kerugian, serta kontena metadata XMP, memastikanVersatilitas dan kualitas tinggi pembuatan gambar disesuaikan dengan kebutuhan Anda.
public class Jpeg2000Options : ImageOptionsBase, IDisposable, IHasXmpData, IHasMetadata, ICloneableInheritance
object ← DisposableObject ← ImageOptionsBase ← Jpeg2000Options
Implements
IDisposable , IHasXmpData , IHasMetadata , ICloneable
anggota yang diwarisi
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
Contoh berikut menunjukkan bagaimana untuk menukar gambar vektor multi halaman ke format JPEG 2000 secara umum tanpa merujuk pada jenis gambar tertentu.
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()
Initifikasi contoh baru dari kelas Aspose.Imaging.ImageOptions.Jpeg2000Options.
public Jpeg2000Options()Jpeg2000Options(Jpeg2000Options)
Initifikasi contoh baru dari kelas Aspose.Imaging.ImageOptions.Jpeg2000Options.
public Jpeg2000Options(Jpeg2000Options jpeg2000Options)Parameters
jpeg2000Options Jpeg2000Options
Jpeg2000 file format opsi untuk menyalin pengaturan dari.
Properties
Codec
Mendapatkan atau menetapkan codec JPEG2000
public Jpeg2000Codec Codec { get; set; }Nilai Properti
Examples
Contoh ini menunjukkan cara membuat gambar PNG dan menyimpannya ke JPEG2000 dengan pilihan yang diinginkan.
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);
}Contoh ini menunjukkan cara membuat gambar JPEG2000 dengan pilihan yang diinginkan dan menyimpannya ke file.
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
Dapatkan atau menetapkan jpeg comment markers.
public string[] Comments { get; set; }Nilai Properti
string [ ]
CompressionRatios
Dapatkan atau menetapkan array dari kompresi proporsi.Perbandingan kompresi yang berbeda untuk lapisan berturut-turut.Kadar yang ditentukan untuk setiap tingkat kualitas adalah yang diinginkan.Faktor kompresiMengurangi rasio yang diperlukan.
public int[] CompressionRatios { get; set; }Nilai Properti
int [ ]
Irreversible
Dapatkan atau menetapkan nilai yang menunjukkan apakah Anda menggunakan DWT 9-7 (kebenaran) yang tidak dapat dipulihkan atau menggunakan kompresi DWT 5-3 tanpa kerugian (default).
public bool Irreversible { get; set; }Nilai Properti
Examples
Contoh ini menunjukkan cara membuat gambar PNG dan menyimpannya ke JPEG2000 dengan pilihan yang diinginkan.
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);
}Contoh ini menunjukkan cara membuat gambar JPEG2000 dengan pilihan yang diinginkan dan menyimpannya ke file.
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");
}