Class ImageOptionsBase
Class ImageOptionsBase
نام ها : Aspose.Imaging جمع آوری: Aspose.Imaging.dll (25.4.0)
گزینه های پایه تصویر
[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
اعضای ارثی
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()
شروع یک مثال جدید از کلاس Aspose.Imaging.ImageOptionsBase.
[JsonConstructor]
protected ImageOptionsBase()ImageOptionsBase(ImageOptionsBase)
شروع یک مثال جدید از کلاس Aspose.Imaging.ImageOptionsBase.
protected ImageOptionsBase(ImageOptionsBase imageOptions)Parameters
imageOptions ImageOptionsBase
گزینه های تصویر
ImageOptionsBase(Image)
شروع یک مثال جدید از کلاس Aspose.Imaging.ImageOptionsBase.
protected ImageOptionsBase(Image image)Parameters
image Image
این تصویر .
Properties
BufferSizeHint
دریافت یا تعیین اندازه بوفری که حداکثر اندازه مجاز برای تمام بوفری های داخلی تعریف شده است.
public int BufferSizeHint { get; set; }ارزش املاک
Examples
مثال زیر نشان می دهد که چگونه برای تنظیم یک محدودیت حافظه در هنگام ایجاد یک تصویر جدید JPEG. محدودیت حافظه حداکثر اندازه مجاز (در مگابایت) برای تمام حافظه های داخلی است.
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
}مثال زیر نشان می دهد که چگونه برای تنظیم یک محدودیت حافظه در هنگام ایجاد یک تصویر PNG و نقاشی گرافیک پیچیده بر روی آن. محدودیت حافظه حداکثر اندازه مجاز (در مگابایت) برای تمام حافظه های داخلی است.
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
در این مطلب قصد داریم به شما بگوئیم که آیا می خواهید یا نه یا نه.
[JsonProperty]
public bool FullFrame { get; set; }ارزش املاک
KeepMetadata
ارزش دریافت می کند که آیا می توانید متادیت های تصویر اصلی را در صادرات نگه دارید.
public bool KeepMetadata { get; set; }ارزش املاک
MultiPageOptions
گزینه های چند صفحه ای
public MultiPageOptions MultiPageOptions { get; set; }ارزش املاک
Palette
قرار دادن یا قرار دادن پالت رنگی
public virtual IColorPalette Palette { get; set; }ارزش املاک
Examples
مثال زیر نشان می دهد که چگونه برای فشرده سازی یک تصویر PNG، با استفاده از رنگ فهرست شده با بهترین پالت مناسب
// 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 reducedمثال زیر یک تصویر BMP را بارگذاری می کند و آن را با استفاده از گزینه های ذخیره سازی مختلف به BMP باز می گرداند.
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);
}مثال زیر یک تصویر BMP را بارگذاری می کند و آن را به JPEG با استفاده از گزینه های ذخیره سازی مختلف ذخیره می کند.
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);
}مثال زیر یک تصویر خاکستری خاکستری را ایجاد می کند و سپس آن را به یک فایل ذخیره می کند.
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();
}مثال زیر نشان می دهد که چگونه یک تصویر BMP را برای کاهش اندازه خروجی آن پالت کنید.
// 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
به دست آوردن یا قرار دادن روند رویداد معامله گر.
[JsonProperty]
public ProgressEventHandler ProgressEventHandler { get; set; }ارزش املاک
Examples
مثال زیر نشان می دهد که چگونه اطلاعات مربوط به رویدادهای پیشرفت برای عملیات بار / صادرات را چاپ کنیم.
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
تنظیمات یا تنظیمات رزولوشن را دریافت کنید.
public virtual ResolutionSetting ResolutionSettings { get; set; }ارزش املاک
Examples
مثال زیر یک تصویر BMP را بارگذاری می کند و آن را با استفاده از گزینه های ذخیره سازی مختلف به BMP باز می گرداند.
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);
}مثال زیر یک تصویر BMP را بارگذاری می کند و آن را به JPEG با استفاده از گزینه های ذخیره سازی مختلف ذخیره می کند.
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);
}مثال زیر یک تصویر خاکستری خاکستری را ایجاد می کند و سپس آن را به یک فایل ذخیره می کند.
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();
}مثال زیر نشان می دهد که چگونه برای ایجاد تصویر JPEG از اندازه مشخص شده با پارامترهای مشخص شده.
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
دریافت یا تنظیم منبع برای ایجاد تصویر در.
public Source Source { get; set; }ارزش املاک
VectorRasterizationOptions
گزینه ها را انتخاب کنید یا گزینه های وکتور را انتخاب کنید.
public VectorRasterizationOptions VectorRasterizationOptions { get; set; }ارزش املاک
XmpData
دریافت یا تنظیم کانتینر متا داده های XMP.
[JsonProperty]
public virtual XmpPacketWrapper XmpData { get; set; }ارزش املاک
Methods
Clone()
ایجاد یک کلون عضو از این حالت.
public virtual ImageOptionsBase Clone()Returns
یکی از کلون های این کشور است.
ReleaseManagedResources()
منابع مدیریت شده را رها کنید اطمینان حاصل کنید که منابع غیر مدیریت شده در اینجا رها نمی شوند، زیرا ممکن است در حال حاضر رها شده باشند.
protected override void ReleaseManagedResources()