- DS.Documents.Html Assembly
-
DS.Documents.Imaging Assembly
- GrapeCity.Documents.Common
- GrapeCity.Documents.Drawing
- GrapeCity.Documents.Imaging.Exif
-
GrapeCity.Documents.Imaging
-
Classes
- BaseInplaceEffect
- BilevelBitmap
- BitmapRenderer
- BradleyThresholdingEffect
- BrightnessContrastEffect
- ColorMatrix5x4
- DitheringEffect
- EllipticFigure
- FreeFormPolygon
- GammaCorrectionEffect
- GaussianBlurEffect
-
GcBitmap
- Constructors
- Properties
-
Methods
- AddGlow
- AddShadow
- AdjustLevels
- AlphaBlend
- ApplyColorMatrix
- ApplyEffect
- ApplyLicenseKey
- ApplySoftEdges
- AutoLevel
- ApplyTransparencyMask
- BitBlt
- CalculateOtsuThreshold
- Clear
- Clip
- Clone
- CompositeAndBlend
- ConvertFromPremultipliedAlpha
- ConvertToOpaque
- ConvertToPremultipliedAlpha
- CreateGraphics
- CreateImage
- DiscardImage
- Dispose
- EnsureRendererCreated
- ExportColorChannel
- ExtractColors
- FlipRotate
- GenerateOctreePalette
- GetContentRect
- HasTransparentPixels
- ImportColorChannel
- IsBlackAndWhite
- IsGrayscale
- Load
- MergePalettes
- Resize
- SaveAsBmp
- SaveAsGif
- SaveAsIco
- SaveAsJpeg
- SaveAsTiff
- SaveAsPng
- SaveAsWebp
- SetDpi
- SetAlphaTo255
- SetLicenseKey
- ShrinkARGBFormat
- ToBilevelBitmap
- ToGrayscaleBitmap
- ToIndexed4bppBitmap
- ToIndexed8bppBitmap
- ToJpegStream
- GcBitmapGraphics
- GcBitmapGraphics.Path
- GcGifReader
- GcGifWriter
- GcIco
- GcTiffReader
- GcTiffWriter
- GifFrame
- GraphicsPath
- GrayscaleBitmap
- GrayscaleEffect
- HueRotationEffect
- IcoFrame
- Indexed4bppBitmap
- Indexed8bppBitmap
- LuminanceToAlphaEffect
- OpacityEffect
- OtsuThresholdingEffect
- PathBuilder
- RectangularFigure
- Region
- RoundRectFigure
- SaturationEffect
- SepiaEffect
- TemperatureAndTintEffect
- TiffFrame
- TiffFrameSettings
- Structs
- Interfaces
- Enums
-
Classes
- GrapeCity.Documents.Layout.Composition
- GrapeCity.Documents.Layout
- GrapeCity.Documents.Svg
- GrapeCity.Documents.Text
- DS.Documents.Imaging.Skia Assembly
- DS.Documents.Imaging.Windows Assembly
GrapeCity.Documents.Imaging.GcBitmap.ToIndexed4bppBitmap
ToIndexed4bppBitmap Method
ToIndexed4bppBitmap(int, bool, bool)
Creates an opaque Indexed4bppBitmap from the current image using the Octree quantizer algorithm.
Declaration
public Indexed4bppBitmap ToIndexed4bppBitmap(int maxColors, bool appendTransparentColor = false, bool lowerBitsFirst = false)Public Function ToIndexed4bppBitmap(maxColors As Integer, Optional appendTransparentColor As Boolean = False, Optional lowerBitsFirst As Boolean = False) As Indexed4bppBitmapParameters
| Type | Name | Description |
|---|---|---|
| int | maxColors | The maximum number of opaque colors in the palette, from 8 to 16. |
| bool | appendTransparentColor | Indicates if a transparent color should be added to the palette, if the image is not opaque and the number of opaque colors is less than 16. |
| bool | lowerBitsFirst | If true, pixels are arranged within a byte such that pixels with lower column indices are stored in the lower-order bit tetrads of the byte. |
Returns
| Type | Description |
|---|---|
| Indexed4bppBitmap | A new instance of Indexed4bppBitmap. |
ToIndexed4bppBitmap(uint[], DitheringMethod, bool, bool)
Creates an opaque Indexed4bppBitmap from the current image using the specified palette.
Declaration
public Indexed4bppBitmap ToIndexed4bppBitmap(uint[] palette, DitheringMethod ditheringMethod, bool appendTransparentColor = false, bool lowerBitsFirst = false)Public Function ToIndexed4bppBitmap(palette As UInteger(), ditheringMethod As DitheringMethod, Optional appendTransparentColor As Boolean = False, Optional lowerBitsFirst As Boolean = False) As Indexed4bppBitmapParameters
| Type | Name | Description |
|---|---|---|
| uint[] | palette | The palette with opaque colors for the new image (colors are in 32-bit ARGB format). Elements with index 16 and above are ignored. |
| DitheringMethod | ditheringMethod | The method of two-dimensional error diffusion dithering. |
| bool | appendTransparentColor | Indicates if a transparent color should be added to the palette, if the image is not opaque and the number of opaque colors is less than 16. |
| bool | lowerBitsFirst | If true, pixels are arranged within a byte such that pixels with lower column indices are stored in the lower-order bit tetrads of the byte. |
Returns
| Type | Description |
|---|---|
| Indexed4bppBitmap | A new instance of Indexed4bppBitmap. |
ToIndexed4bppBitmap(DitheringMethod, bool)
Creates an Indexed4bppBitmap from the current image.
Declaration
public Indexed4bppBitmap ToIndexed4bppBitmap(DitheringMethod ditheringMethod, bool lowerBitsFirst = false)Public Function ToIndexed4bppBitmap(ditheringMethod As DitheringMethod, Optional lowerBitsFirst As Boolean = False) As Indexed4bppBitmapParameters
| Type | Name | Description |
|---|---|---|
| DitheringMethod | ditheringMethod | The method of two-dimensional error diffusion dithering. |
| bool | lowerBitsFirst | If true, pixels are arranged within a byte such that pixels with lower column indices are stored in the lower-order bit tetrads of the byte. |
Returns
| Type | Description |
|---|---|
| Indexed4bppBitmap | A new instance of Indexed4bppBitmap. |