Class ImageOptionsBase
Class ImageOptionsBase
اسم الفضاء : Aspose.Imaging تجميع: Aspose.Imaging.dll (25.4.0)
خيارات قاعدة الصورة.
[JsonObject(MemberSerialization.OptIn)]
public abstract class ImageOptionsBase : DisposableObject, IDisposable, IHasXmpData, IHasMetadata, ICloneableInheritance
object ← DisposableObject ← ImageOptionsBase
Derived
BmpOptions , DicomOptions , DxfOptions , EpsOptions , GifOptions , Html5CanvasOptions , IcoOptions , Jpeg2000Options , JpegOptions , MetafileOptions , PdfOptions , PngOptions , PsdOptions , SvgOptions , TgaOptions , TiffOptions , VectorRasterizationOptions , WebPOptions
Implements
IDisposable , IHasXmpData , IHasMetadata , ICloneable
الأعضاء الموروثين
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()
Constructors
ImageOptionsBase()
يبدأ مثال جديد من فئة Aspose.Imaging.ImageOptionsBase.
[JsonConstructor]
protected ImageOptionsBase()ImageOptionsBase(ImageOptionsBase)
يبدأ مثال جديد من فئة Aspose.Imaging.ImageOptionsBase.
protected ImageOptionsBase(ImageOptionsBase imageOptions)Parameters
imageOptions ImageOptionsBase
خيارات الصورة .
ImageOptionsBase(Image)
يبدأ مثال جديد من فئة Aspose.Imaging.ImageOptionsBase.
protected ImageOptionsBase(Image image)Parameters
image Image
في الصورة .
Properties
BufferSizeHint
يحصل أو يضع علامة حجم البوفر التي يتم تحديد الحجم المسموح به للحد الأقصى لجميع البوفر الداخلي.
public int BufferSizeHint { get; set; }قيمة الممتلكات
Examples
يظهر المثال التالي كيفية تعيين حد الذاكرة عند إنشاء صورة JPEG الجديدة.الحد الذاكرة هو الحد الأقصى المسموح به (في ميغابايت) لجميع الذاكرة الداخلية.
string dir = "c:\\aspose.imaging\\issues\\net\\3404\\";
// Setting a memory limit of 50 megabytes for target created image
Aspose.Imaging.ImageOptionsBase createOptions = new Aspose.Imaging.ImageOptions.JpegOptions
{
CompressionType = Aspose.Imaging.FileFormats.Jpeg.JpegCompressionMode.Progressive,
BufferSizeHint = 50,
Source = new Aspose.Imaging.Sources.FileCreateSource(dir + "createdFile.jpg", false),
};
using (var image = Aspose.Imaging.Image.Create(createOptions, 1000, 1000))
{
image.Save(); // save to same location
}يظهر المثال التالي كيفية تعيين حدود الذاكرة عند إنشاء صورة PNG وتصوير الرسومات المعقدة عليها.
string dir = "c:\\aspose.imaging\\issues\\net\\3383\\";
const int ImageSize = 2000;
Aspose.Imaging.ImageOptionsBase createOptions = new Aspose.Imaging.ImageOptions.PngOptions();
createOptions.Source = new Aspose.Imaging.Sources.FileCreateSource(dir + "graphics_simple.png", false);
createOptions.BufferSizeHint = 30; // Memory limit is 30 Mb
using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Create(createOptions, ImageSize, ImageSize))
{
Aspose.Imaging.Graphics graphics = new Aspose.Imaging.Graphics(image);
// You can use any graphic operations here, all of them will be performed within the established memory limit
// For example:
graphics.Clear(Aspose.Imaging.Color.LightSkyBlue);
graphics.DrawLine(new Aspose.Imaging.Pen(Aspose.Imaging.Color.Red, 3f), 0, 0, image.Width, image.Height);
image.Save();
}
// A large number of graphic operations are also supported:
const int OperationAreaSize = 10;
createOptions = new Aspose.Imaging.ImageOptions.PngOptions();
createOptions.Source = new Aspose.Imaging.Sources.FileCreateSource(dir + "graphics_complex.png", false);
createOptions.BufferSizeHint = 30; // Memory limit is 30 Mb
using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Create(createOptions, ImageSize, ImageSize))
{
Aspose.Imaging.Graphics graphics = new Aspose.Imaging.Graphics(image);
graphics.BeginUpdate();
graphics.Clear(Aspose.Imaging.Color.LightSkyBlue);
int x, y;
int numberOfOperations = 0;
for (int column = 0; column * OperationAreaSize < ImageSize; column++)
{
for (int row = 0; row * OperationAreaSize < ImageSize; row++)
{
x = column * OperationAreaSize;
y = row * OperationAreaSize;
bool reversed = (column + row) % 2 != 0;
if (reversed)
{
graphics.DrawLine(
new Aspose.Imaging.Pen(Aspose.Imaging.Color.Red),
x + OperationAreaSize - 2,
y,
x,
y + OperationAreaSize);
}
else
{
graphics.DrawLine(
new Aspose.Imaging.Pen(Aspose.Imaging.Color.Red),
x,
y,
x + OperationAreaSize - 2,
y + OperationAreaSize);
}
numberOfOperations++;
}
}
// About 40k operations will be applied here, while they do not take up too much memory
// since they are already unloaded into the external file, and will be loaded from there one at a time
graphics.EndUpdate();
image.Save();
}FullFrame
وَقَالَ رَسُولُ اللَّهِ - صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ -: «يَا أَيُّهَا الَّذِينَ آمَنُوا اتَّقُوا اللَّهَ وَاتَّقُوا اللَّهَ».
[JsonProperty]
public bool FullFrame { get; set; }قيمة الممتلكات
KeepMetadata
يحصل على قيمة ما إذا كان للحفاظ على بيانات الصورة الأصلية على التصدير.
public bool KeepMetadata { get; set; }قيمة الممتلكات
MultiPageOptions
الخيارات متعددة الصفحات
public MultiPageOptions MultiPageOptions { get; set; }قيمة الممتلكات
Palette
يحصل أو يضع لوحة الألوان.
public virtual IColorPalette Palette { get; set; }قيمة الممتلكات
Examples
يظهر المثال التالي كيفية ضغط صورة PNG ، باستخدام لون مؤشر مع أفضل لوحة تناسب
// Loads png image
string sourceFilePath="OriginalRings.png";
string outputFilePath="OriginalRingsOutput.png";
using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(sourceFilePath))
{
image.Save(outputFilePath, new Aspose.Imaging.ImageOptions.PngOptions()
{
Progressive = true,
// Use indexed color type
ColorType = Aspose.Imaging.FileFormats.Png.PngColorType.IndexedColor,
// Use maximal compression
CompressionLevel = 9,
// Get the closest 8-bit color palette which covers as many pixels as possible, so that a palettized image
// is almost visually indistinguishable from a non-palletized one.
Palette = Aspose.Imaging.ColorPaletteHelper.GetCloseImagePalette((Aspose.Imaging.RasterImage)image, 256, Aspose.Imaging.PaletteMiningMethod.Histogram)
});
}
// The output file size should be significantly reducedويحمل المثال التالي صورة BMP ويحفظها مرة أخرى إلى BMP باستخدام خيارات التخزين المختلفة.
string dir = "c:\\temp\\";
using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(dir + "sample.bmp"))
{
Aspose.Imaging.RasterImage rasterImage = (Aspose.Imaging.RasterImage)image;
// Create BmpOptions
Aspose.Imaging.ImageOptions.BmpOptions saveOptions = new Aspose.Imaging.ImageOptions.BmpOptions();
// Use 8 bits per pixel to reduce the size of the output image.
saveOptions.BitsPerPixel = 8;
// Set the closest 8-bit color palette which covers the maximal number of image pixels, so that a palettized image
// is almost visually indistinguishable from a non-palletized one.
saveOptions.Palette = Aspose.Imaging.ColorPaletteHelper.GetCloseImagePalette(rasterImage, 256);
// Save without compression.
// You can also use RLE-8 compression to reduce the size of the output image.
saveOptions.Compression = Aspose.Imaging.FileFormats.Bmp.BitmapCompression.Rgb;
// Set the horizontal and vertical resolution to 96 dpi.
saveOptions.ResolutionSettings = new Aspose.Imaging.ResolutionSetting(96.0, 96.0);
image.Save(dir + "sample.bmpoptions.bmp", saveOptions);
}في المثال التالي ، يتم تحميل صورة BMP وتخزينها إلى JPEG باستخدام خيارات التخزين المختلفة.
string dir = "c:\\temp\\";
// Load a BMP image from a file.
using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(dir + "sample.bmp"))
{
// Do some image processing.
// Use additional options to specify the desired image parameters.
Aspose.Imaging.ImageOptions.JpegOptions saveOptions = new Aspose.Imaging.ImageOptions.JpegOptions();
// The number of bits per channel is 8.
// When a palette is used, the color index is stored in the image data instead of the color itself.
saveOptions.BitsPerChannel = 8;
// Set the progressive type of compression.
saveOptions.CompressionType = Aspose.Imaging.FileFormats.Jpeg.JpegCompressionMode.Progressive;
// Set the image quality. It is a value between 1 and 100.
saveOptions.Quality = 100;
// Set the horizontal/vertical resolution to 96 dots per inch.
saveOptions.ResolutionSettings = new Aspose.Imaging.ResolutionSetting(96.0, 96.0);
saveOptions.ResolutionUnit = Aspose.Imaging.ResolutionUnit.Inch;
// If the source image is colored, it will be converted to grayscaled.
saveOptions.ColorType = Aspose.Imaging.FileFormats.Jpeg.JpegCompressionColorMode.Grayscale;
// Use a palette to reduce the output size.
saveOptions.Palette = Aspose.Imaging.ColorPaletteHelper.Create8BitGrayscale(false);
image.Save(dir + "sample.palettized.jpg", saveOptions);
}في المثال التالي ، يتم إنشاء صورة BMP على مقياس رمادي ، ثم يتم حفظها إلى ملف.
string dir = "c:\\temp\\";
Aspose.Imaging.ImageOptions.BmpOptions createOptions = new Aspose.Imaging.ImageOptions.BmpOptions();
// Save to a file
createOptions.Source = new Aspose.Imaging.Sources.FileCreateSource(dir + "output.palette8bit.bmp", false);
// Use 8 bits per pixel to reduce the size of the output image.
createOptions.BitsPerPixel = 8;
// Set the standard 8-bit grayscale color palette which covers all grayscale colors.
// If the processed image contains only grayscale colors, then its palettized version
// is visually indistinguishable from a non-palletized one.
createOptions.Palette = Aspose.Imaging.ColorPaletteHelper.Create8BitGrayscale(false);
// Save without compression.
// You can also use RLE-8 compression to reduce the size of the output image.
createOptions.Compression = Aspose.Imaging.FileFormats.Bmp.BitmapCompression.Rgb;
// Set the horizontal and vertical resolution to 96 dpi.
createOptions.ResolutionSettings = new Aspose.Imaging.ResolutionSetting(96.0, 96.0);
// Create a BMP image of 100 x 100 px and save it to a file.
using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Create(createOptions, 100, 100))
{
Aspose.Imaging.Graphics graphics = new Aspose.Imaging.Graphics(image);
Aspose.Imaging.Brushes.LinearGradientBrush gradientBrush = new Aspose.Imaging.Brushes.LinearGradientBrush(
new Aspose.Imaging.Point(0, 0),
new Aspose.Imaging.Point(image.Width, image.Height),
Aspose.Imaging.Color.Black,
Aspose.Imaging.Color.White);
// Fill the image with a grayscale gradient
graphics.FillRectangle(gradientBrush, image.Bounds);
image.Save();
}يظهر المثال التالي كيفية تصفية صورة BMP لتقليل حجم الإنتاج.
// Create a BMP image 100 x 100 px.
using (Aspose.Imaging.FileFormats.Bmp.BmpImage bmpImage = new Aspose.Imaging.FileFormats.Bmp.BmpImage(100, 100))
{
// The linear gradient from the left-top to the right-bottom corner of the image.
Aspose.Imaging.Brushes.LinearGradientBrush brush =
new Aspose.Imaging.Brushes.LinearGradientBrush(
new Aspose.Imaging.Point(0, 0),
new Aspose.Imaging.Point(bmpImage.Width, bmpImage.Height),
Aspose.Imaging.Color.Red,
Aspose.Imaging.Color.Green);
// Fill the entire image with the linear gradient brush.
Aspose.Imaging.Graphics gr = new Aspose.Imaging.Graphics(bmpImage);
gr.FillRectangle(brush, bmpImage.Bounds);
// Get the closest 8-bit color palette which covers as many pixels as possible, so that a palettized image
// is almost visually indistinguishable from a non-palletized one.
Aspose.Imaging.IColorPalette palette = Aspose.Imaging.ColorPaletteHelper.GetCloseImagePalette(bmpImage, 256);
// 8-bit palette contains at most 256 colors.
Aspose.Imaging.ImageOptions.BmpOptions saveOptions = new Aspose.Imaging.ImageOptions.BmpOptions();
saveOptions.Palette = palette;
saveOptions.BitsPerPixel = 8;
using (System.IO.MemoryStream stream = new System.IO.MemoryStream())
{
bmpImage.Save(stream, saveOptions);
System.Console.WriteLine("The palettized image size is {0} bytes.", stream.Length);
}
using (System.IO.MemoryStream stream = new System.IO.MemoryStream())
{
bmpImage.Save(stream);
System.Console.WriteLine("The non-palettized image size is {0} bytes.", stream.Length);
}
}
// The output looks like this:
// The palettized image size is 11078 bytes.
// The non-palettized image size is 40054 bytes.ProgressEventHandler
يحصل أو يضع مسار الحدث التقدم.
[JsonProperty]
public ProgressEventHandler ProgressEventHandler { get; set; }قيمة الممتلكات
Examples
يظهر المثال التالي كيفية طباعة المعلومات حول أحداث التقدم لعمليات التحميل/التصدير.
public void Test3460()
{
string dir = "c:\\aspose.imaging\\net\\issues\\3460";
string fileName = System.IO.Path.Combine(dir, "big.png");
// Example of use of separate operation progress event handlers for load/export operations
using (var image = Aspose.Imaging.Image.Load(fileName, new Aspose.Imaging.LoadOptions { ProgressEventHandler = ProgressCallback }))
{
image.Save(fileName + ".psd",
new Aspose.Imaging.ImageOptions.PsdOptions() { ProgressEventHandler = ExportProgressCallback });
}
}
private void ProgressCallback(Aspose.Imaging.ProgressManagement.ProgressEventHandlerInfo info)
{
System.Console.WriteLine("{0} : {1}/{2}", info.EventType, info.Value, info.MaxValue);
}
private void ExportProgressCallback(Aspose.Imaging.ProgressManagement.ProgressEventHandlerInfo info)
{
System.Console.WriteLine("Export event {0} : {1}/{2}", info.EventType, info.Value, info.MaxValue);
}
// The STDOUT log may look like this:
//Initialization : 1/4
//PreProcessing : 2/4
//Processing : 3/4
//Finalization : 4/4
//Export event Initialization : 1/4
//Export event PreProcessing : 2/4
//Export event Processing : 3/4
//Export event RelativeProgress : 1/1
//RelativeProgress : 1/1
//Export event Finalization : 4/4ResolutionSettings
يحصل أو يضع إعدادات القرار.
public virtual ResolutionSetting ResolutionSettings { get; set; }قيمة الممتلكات
Examples
ويحمل المثال التالي صورة BMP ويحفظها مرة أخرى إلى BMP باستخدام خيارات التخزين المختلفة.
string dir = "c:\\temp\\";
using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(dir + "sample.bmp"))
{
Aspose.Imaging.RasterImage rasterImage = (Aspose.Imaging.RasterImage)image;
// Create BmpOptions
Aspose.Imaging.ImageOptions.BmpOptions saveOptions = new Aspose.Imaging.ImageOptions.BmpOptions();
// Use 8 bits per pixel to reduce the size of the output image.
saveOptions.BitsPerPixel = 8;
// Set the closest 8-bit color palette which covers the maximal number of image pixels, so that a palettized image
// is almost visually indistinguishable from a non-palletized one.
saveOptions.Palette = Aspose.Imaging.ColorPaletteHelper.GetCloseImagePalette(rasterImage, 256);
// Save without compression.
// You can also use RLE-8 compression to reduce the size of the output image.
saveOptions.Compression = Aspose.Imaging.FileFormats.Bmp.BitmapCompression.Rgb;
// Set the horizontal and vertical resolution to 96 dpi.
saveOptions.ResolutionSettings = new Aspose.Imaging.ResolutionSetting(96.0, 96.0);
image.Save(dir + "sample.bmpoptions.bmp", saveOptions);
}في المثال التالي ، يتم تحميل صورة BMP وتخزينها إلى JPEG باستخدام خيارات التخزين المختلفة.
string dir = "c:\\temp\\";
// Load a BMP image from a file.
using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(dir + "sample.bmp"))
{
// Do some image processing.
// Use additional options to specify the desired image parameters.
Aspose.Imaging.ImageOptions.JpegOptions saveOptions = new Aspose.Imaging.ImageOptions.JpegOptions();
// The number of bits per channel is 8.
// When a palette is used, the color index is stored in the image data instead of the color itself.
saveOptions.BitsPerChannel = 8;
// Set the progressive type of compression.
saveOptions.CompressionType = Aspose.Imaging.FileFormats.Jpeg.JpegCompressionMode.Progressive;
// Set the image quality. It is a value between 1 and 100.
saveOptions.Quality = 100;
// Set the horizontal/vertical resolution to 96 dots per inch.
saveOptions.ResolutionSettings = new Aspose.Imaging.ResolutionSetting(96.0, 96.0);
saveOptions.ResolutionUnit = Aspose.Imaging.ResolutionUnit.Inch;
// If the source image is colored, it will be converted to grayscaled.
saveOptions.ColorType = Aspose.Imaging.FileFormats.Jpeg.JpegCompressionColorMode.Grayscale;
// Use a palette to reduce the output size.
saveOptions.Palette = Aspose.Imaging.ColorPaletteHelper.Create8BitGrayscale(false);
image.Save(dir + "sample.palettized.jpg", saveOptions);
}في المثال التالي ، يتم إنشاء صورة BMP على مقياس رمادي ، ثم يتم حفظها إلى ملف.
string dir = "c:\\temp\\";
Aspose.Imaging.ImageOptions.BmpOptions createOptions = new Aspose.Imaging.ImageOptions.BmpOptions();
// Save to a file
createOptions.Source = new Aspose.Imaging.Sources.FileCreateSource(dir + "output.palette8bit.bmp", false);
// Use 8 bits per pixel to reduce the size of the output image.
createOptions.BitsPerPixel = 8;
// Set the standard 8-bit grayscale color palette which covers all grayscale colors.
// If the processed image contains only grayscale colors, then its palettized version
// is visually indistinguishable from a non-palletized one.
createOptions.Palette = Aspose.Imaging.ColorPaletteHelper.Create8BitGrayscale(false);
// Save without compression.
// You can also use RLE-8 compression to reduce the size of the output image.
createOptions.Compression = Aspose.Imaging.FileFormats.Bmp.BitmapCompression.Rgb;
// Set the horizontal and vertical resolution to 96 dpi.
createOptions.ResolutionSettings = new Aspose.Imaging.ResolutionSetting(96.0, 96.0);
// Create a BMP image of 100 x 100 px and save it to a file.
using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Create(createOptions, 100, 100))
{
Aspose.Imaging.Graphics graphics = new Aspose.Imaging.Graphics(image);
Aspose.Imaging.Brushes.LinearGradientBrush gradientBrush = new Aspose.Imaging.Brushes.LinearGradientBrush(
new Aspose.Imaging.Point(0, 0),
new Aspose.Imaging.Point(image.Width, image.Height),
Aspose.Imaging.Color.Black,
Aspose.Imaging.Color.White);
// Fill the image with a grayscale gradient
graphics.FillRectangle(gradientBrush, image.Bounds);
image.Save();
}يظهر المثال التالي كيفية إنشاء صورة JPEG من الحجم المحدد مع المعلمات المحددة.
string dir = "c:\\temp\\";
// Create a JPEG image of 100x100 px.
// Use additional options to specify the desired image parameters.
Aspose.Imaging.ImageOptions.JpegOptions createOptions = new Aspose.Imaging.ImageOptions.JpegOptions();
// The number of bits per channel is 8, 8, 8 for Y, Cr, Cb components accordingly.
createOptions.BitsPerChannel = 8;
// Set the progressive type of compression.
createOptions.CompressionType = Aspose.Imaging.FileFormats.Jpeg.JpegCompressionMode.Progressive;
// Set the image quality. It is a value between 1 and 100.
createOptions.Quality = 100;
// Set the horizontal/vertical resolution to 96 dots per inch.
createOptions.ResolutionSettings = new Aspose.Imaging.ResolutionSetting(96.0, 96.0);
createOptions.ResolutionUnit = Aspose.Imaging.ResolutionUnit.Inch;
// This is a standard option for JPEG images.
// Two chroma components (Cb and Cr) can be bandwidth-reduced, subsampled, compressed.
createOptions.ColorType = Aspose.Imaging.FileFormats.Jpeg.JpegCompressionColorMode.YCbCr;
using (Aspose.Imaging.FileFormats.Jpeg.JpegImage jpegImage = new Aspose.Imaging.FileFormats.Jpeg.JpegImage(createOptions, 100, 100))
{
Aspose.Imaging.Graphics graphics = new Aspose.Imaging.Graphics(jpegImage);
Aspose.Imaging.Brushes.LinearGradientBrush gradientBrush = new Aspose.Imaging.Brushes.LinearGradientBrush(
new Aspose.Imaging.Point(0, 0),
new Aspose.Imaging.Point(jpegImage.Width, jpegImage.Height),
Aspose.Imaging.Color.Yellow,
Aspose.Imaging.Color.Blue);
// Fill the image with a grayscale gradient
graphics.FillRectangle(gradientBrush, jpegImage.Bounds);
// Save to a file.
jpegImage.Save(dir + "output.explicitoptions.jpg");
}Source
يحصل أو يضع المصدر لإنشاء الصورة.
public Source Source { get; set; }قيمة الممتلكات
VectorRasterizationOptions
يحصل أو يحدد خيارات التخطيط فيكتور.
public VectorRasterizationOptions VectorRasterizationOptions { get; set; }قيمة الممتلكات
XmpData
يحصل أو يضع حاوية البيانات الميتا XMP.
[JsonProperty]
public virtual XmpPacketWrapper XmpData { get; set; }قيمة الممتلكات
Methods
Clone()
يخلق عضويًا من هذه الحالة.
public virtual ImageOptionsBase Clone()Returns
كلاهما كلاهما كلاهما كلاهما
ReleaseManagedResources()
تأكد من عدم إطلاق الموارد غير المعالجة هنا، لأنها قد تكون قد تم إطلاقها بالفعل.
protected override void ReleaseManagedResources()