Leadtools Namespace > Classes > RasterImage > Methods > StartDithering Method

public void StartDithering(  
   Leadtools.RasterColor[] palette, 
   int colors 
) 

Public Sub StartDithering( _ 
   ByVal palette() As Leadtools.RasterColor, _ 
   ByVal colors As Integer _ 
)  

public void StartDithering(  
   Leadtools.RasterColor[] palette, 
   int colors 
) 

- (BOOL)startDithering:(nullable NSArray<LTRasterColor *> *)palette  
                colors:(NSUInteger)colors  
                 error:(NSError **)error 
             

public void startDithering( 
  RasterColor[] palette,  
  int colors 
) 
             

 function Leadtools.RasterImage.StartDithering(  
   palette , 
   colors  
) 

public: 
void StartDithering(  
   Leadtools.array<RasterColor>^ palette, 
   int colors 
)  

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing; 
using Leadtools.ImageProcessing.Core; 
using Leadtools.ImageProcessing.Color; 
using Leadtools.Dicom; 
using Leadtools.Drawing; 
using Leadtools.Controls; 
using LeadtoolsExamples.Common; 
using Leadtools.Svg; 
 
public void StartDitheringExample() 
{ 
   RasterCodecs codecs = new RasterCodecs(); 
   // Load an image that has BottomLeft ViewPerspective 
   RasterImage image = codecs.Load(Path.Combine(ImagesPath.Path, "IMAGE1.CMP")); 
 
   RasterColor[] Palette = RasterPalette.Fixed(256); 
 
   // Create the new palletized image. 
   RasterImage destinationImage = new RasterImage(RasterMemoryFlags.Conventional, image.Width, image.Height, 8, image.Order, image.ViewPerspective, Palette, IntPtr.Zero, 0); 
 
   // Set the dithering method. 
   image.DitheringMethod = RasterDitheringMethod.StevensonArce; 
 
   // Initialize the dithering process. 
   image.StartDithering(Palette, 256); 
 
   // Allocate the output buffer for 8-bit data. 
   byte[] InBuffer = new byte[image.Width * 3];// Buffer to hold the input row. 
   byte[] OutBuffer = new byte[image.Width];// Buffer to hold the output row. 
 
   // Use DitherLine method to process each row in the image. 
   for (int i = 0; i < image.Height; i++) 
   { 
      image.GetRow(i, InBuffer, 0, image.BytesPerLine); 
      image.DitherLine(InBuffer, 0, OutBuffer, 0); 
      destinationImage.SetRow(i, OutBuffer, 0, destinationImage.BytesPerLine); 
   } 
   // End the dithering process. 
   image.StopDithering(); 
 
   codecs.Save(destinationImage, Path.Combine(ImagesPath.Path, "IMAGE1_DitherLine.BMP"), RasterImageFormat.Bmp, 0); 
 
   image.Dispose(); 
   destinationImage.Dispose(); 
   codecs.Dispose(); 
} 

Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing 
Imports Leadtools.ImageProcessing.Core 
Imports Leadtools.ImageProcessing.Color 
Imports Leadtools.Controls 
Imports Leadtools.Dicom 
Imports Leadtools.Drawing 
Imports Leadtools.Svg 
 
Public Sub StartDitheringExample() 
   Dim codecs As RasterCodecs = New RasterCodecs() 
   ' Load an image that has BottomLeft ViewPerspective 
   Dim image As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "IMAGE1.CMP")) 
 
   Dim Palette As RasterColor() = RasterPalette.Fixed(8) 
 
   ' Create the new palletized image. 
   Dim destinationImage As RasterImage = New RasterImage(RasterMemoryFlags.Conventional, image.Width, image.Height, 8, 
                                                         image.Order, image.ViewPerspective, Palette, IntPtr.Zero, 0) 
 
   ' Set the dithering method. 
   image.DitheringMethod = RasterDitheringMethod.StevensonArce 
 
   ' Initialize the dithering process. 
   image.StartDithering(Palette, 256) 
 
   ' Allocate the output buffer for 8-bit data. 
   Dim InBuffer As Byte() = New Byte(image.Width * 3 - 1) {} ' Buffer to hold the input row. 
   Dim OutBuffer As Byte() = New Byte(image.Width - 1) {} ' Buffer to hold the output row. 
 
   ' Use DitherLine method to process each row in the image. 
   Dim i As Integer = 0 
   Do While i < image.Height 
      image.GetRow(i, InBuffer, 0, image.BytesPerLine) 
      image.DitherLine(InBuffer, 0, OutBuffer, 0) 
      destinationImage.SetRow(i, OutBuffer, 0, destinationImage.BytesPerLine) 
      i += 1 
   Loop 
   ' End the dithering process. 
   image.StopDithering() 
 
   codecs.Save(destinationImage, Path.Combine(LEAD_VARS.ImagesDir, "IMAGE1_DitherLine.BMP"), RasterImageFormat.Bmp, 0) 
 
   image.Dispose() 
   destinationImage.Dispose() 
   codecs.Dispose() 
End Sub 
 
Public NotInheritable Class LEAD_VARS 
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" 
End Class 

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Dicom; 
using Leadtools.ImageProcessing; 
using Leadtools.ImageProcessing.Core; 
using Leadtools.ImageProcessing.Color; 
using Leadtools.Examples; 
using Leadtools.Windows.Media; 
 
public void StartDitheringExample(RasterImage image, Stream destStream) 
{ 
   RasterColor[] Palette = RasterPalette.Fixed(256); 
 
   // Create the new palletized image. 
   RasterImage destinationImage = new RasterImage(RasterMemoryFlags.Conventional, image.Width, image.Height, 8, image.Order, image.ViewPerspective, Palette, null, 0); 
 
   // Set the dithering method. 
   image.DitheringMethod = RasterDitheringMethod.StevensonArce; 
 
   // Initialize the dithering process. 
   image.StartDithering(Palette, 256); 
 
   // Allocate the output buffer for 8-bit data. 
   byte[] InBuffer = new byte[image.Width * 3];// Buffer to hold the input row. 
   byte[] OutBuffer = new byte[image.Width];// Buffer to hold the output row. 
 
   // Use DitherLine method to process each row in the image. 
   for (int i = 0; i < image.Height; i++) 
   { 
      image.GetRow(i, InBuffer, 0, image.BytesPerLine); 
      image.DitherLine(InBuffer, 0, OutBuffer, 0); 
      destinationImage.SetRow(i, OutBuffer, 0, destinationImage.BytesPerLine); 
   } 
   // End the dithering process. 
   image.StopDithering(); 
 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.Save(destinationImage, destStream, RasterImageFormat.Bmp, 0); 
 
   image.Dispose(); 
   destinationImage.Dispose(); 
} 

Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.Dicom 
Imports Leadtools.ImageProcessing 
Imports Leadtools.ImageProcessing.Core 
Imports Leadtools.ImageProcessing.Color 
Imports Leadtools.Windows.Media 
 
Public Sub StartDitheringExample(ByVal image As RasterImage, ByVal destStream As Stream) 
   Dim Palette As RasterColor() = RasterPalette.Fixed(256) 
 
   ' Create the new palletized image. 
   Dim destinationImage As RasterImage = New RasterImage(RasterMemoryFlags.Conventional, image.Width, image.Height, 8, image.Order, image.ViewPerspective, Palette, Nothing, 0) 
 
   ' Set the dithering method. 
   image.DitheringMethod = RasterDitheringMethod.StevensonArce 
 
   ' Initialize the dithering process. 
   image.StartDithering(Palette, 256) 
 
   ' Allocate the output buffer for 8-bit data. 
   Dim InBuffer As Byte() = New Byte(image.Width * 3 - 1) {} ' Buffer to hold the input row. 
   Dim OutBuffer As Byte() = New Byte(image.Width - 1) {} ' Buffer to hold the output row. 
 
   ' Use DitherLine method to process each row in the image. 
   Dim i As Integer = 0 
   Do While i < image.Height 
      image.GetRow(i, InBuffer, 0, image.BytesPerLine) 
      image.DitherLine(InBuffer, 0, OutBuffer, 0) 
      destinationImage.SetRow(i, OutBuffer, 0, destinationImage.BytesPerLine) 
      i += 1 
   Loop 
   ' End the dithering process. 
   image.StopDithering() 
 
   Dim codecs As RasterCodecs = New RasterCodecs() 
   codecs.Save(destinationImage, destStream, RasterImageFormat.Bmp, 0) 
 
   image.Dispose() 
   destinationImage.Dispose() 
End Sub 

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