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GrayScaleToDuotoneCommand Constructor(RasterColor[],RasterColor,GrayScaleToDuotoneCommandMixingType)

Summary

Initializes a new GrayScaleToDuotoneCommand class object with explicit parameters.

Syntax
C#
VB
Java
Objective-C
C++
Public Function New( _ 
   ByVal newColor() As RasterColor, _ 
   ByVal color As RasterColor, _ 
   ByVal type As GrayScaleToDuotoneCommandMixingType _ 
) 
- (instancetype)initWithNewColor:(NSArray<LTRasterColor *> *)newColor 
                           color:(LTRasterColor *)color 
                            type:(LTGrayScaleToDuotoneCommandMixingType)type 
public GrayScaleToDuotoneCommand( 
   RasterColor[] newColor,  
   RasterColor color,  
   GrayScaleToDuotoneCommandMixingType type 
) 

Parameters

newColor
Array of RasterColor structures that specifies colors that will be mixed with the original gray values. If this parameter is set to null, the Color property must contain a valid color. Pass null when you want the command to create the array of colors, two colors when replacing both colors in a binary image, or 256 colors when using a custom array of colors.

color
Used to create an array of colors internally. This parameter is used when the NewColor structure is set to null. This parameter is ignored if the NewColor value is something other than null.

type
Enumeration that indicates whether colors will be mixed or replaced.

Example

Run the GrayScaleToDuotoneCommand on an image.

C#
VB
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Color; 
 
public void GrayScaleToDuotoneConstructorExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, @"ImageProcessingDemo\Beauty16.jpg")); 
 
   // Prepare the command 
   RasterColor[] array = new RasterColor[256]; 
 
   for (int i = 0; i < 256; i++) 
      array[i] = new RasterColor(255, (byte)(i / 4), (byte)(i)); 
 
   //Apply duotone conversion. 
   GrayScaleToDuotoneCommand command = new GrayScaleToDuotoneCommand(array, new RasterColor(0, 0, 0), GrayScaleToDuotoneCommandMixingType.ReplaceOldWithNew); 
   command.Run(image); 
   codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24); 
 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; 
} 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Color 
 
Public Sub GrayScaleToDuetoneConstructorExample() 
   Dim codecs As New RasterCodecs() 
   codecs.ThrowExceptionsOnInvalidImages = True 
 
   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "ImageProcessingDemo\\Beauty16.jpg")) 
 
   ' Prepare the command 
   Dim array() As RasterColor 
   Dim i As Integer 
   ReDim array(255) 
 
   For i = 0 To 255 
      array(i) = New RasterColor(255, CType(i / 4, Byte), CType(i, Byte)) 
   Next 
 
   'Apply duotone conversion. 
   Dim command As GrayScaleToDuotoneCommand = New GrayScaleToDuotoneCommand(array, Nothing, GrayScaleToDuotoneCommandMixingType.ReplaceOldWithNew) 
   command.Run(leadImage) 
   codecs.Save(leadImage, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24) 
 
End Sub 
 
Public NotInheritable Class LEAD_VARS 
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" 
End Class 
c#[Silverlight C# Example] 
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Color; 
using Leadtools.Examples; 
 
public void GrayScaleToDuotoneConstructorExample(RasterImage image, Stream outStream) 
{ 
   // Prepare the command 
   RasterColor[] array = new RasterColor[256]; 
 
   for (int i = 0; i < 256; i++) 
      array[i] = new RasterColor(255, (byte)(i / 4), (byte)(i)); 
 
   //Apply duotone conversion. 
   GrayScaleToDuotoneCommand command = new GrayScaleToDuotoneCommand(array, new RasterColor(0, 0, 0), GrayScaleToDuotoneCommandMixingType.ReplaceOldWithNew); 
   command.Run(image); 
 
   // Save result image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24); 
   image.Dispose(); 
} 
vb[Silverlight VB Example] 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Color 
 
Public Sub GrayScaleToDuotoneConstructorExample(ByVal image As RasterImage, ByVal outStream As Stream) 
   ' Prepare the command 
   Dim array As RasterColor() = New RasterColor(255) {} 
 
   For i As Integer = 0 To 255 
      array(i) = New RasterColor(255, CByte(i / 4), CByte(i)) 
   Next i 
 
   'Apply duotone conversion. 
   Dim command As GrayScaleToDuotoneCommand = New GrayScaleToDuotoneCommand(array, New RasterColor(0, 0, 0), GrayScaleToDuotoneCommandMixingType.ReplaceOldWithNew) 
   command.Run(image) 
 
   ' Save result image 
   Dim codecs As RasterCodecs = New RasterCodecs() 
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24) 
   image.Dispose() 
End Sub 

Requirements

Target Platforms

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Leadtools.ImageProcessing.Color Assembly