ColorIntensityBalanceCommand Class

Changes the distribution of the red, green, or blue channels. This command is available in the Raster Pro and above toolkits.

Object Model

Syntax

Visual Basic
C#
WinRT C#
WinRT JavaScript
C++

public class ColorIntensityBalanceCommand : Leadtools.ImageProcessing.RasterCommand, Leadtools.ImageProcessing.IRasterCommand

'Declaration
 
Public Class ColorIntensityBalanceCommand 
   Inherits Leadtools.ImageProcessing.RasterCommand
   Implements Leadtools.ImageProcessing.IRasterCommand

'Usage
 
Dim instance As ColorIntensityBalanceCommand

public sealed class ColorIntensityBalanceCommand : Leadtools.ImageProcessing.IRasterCommand

function Leadtools.ImageProcessing.Color.ColorIntensityBalanceCommand()

public ref class ColorIntensityBalanceCommand : public Leadtools.ImageProcessing.RasterCommand, Leadtools.ImageProcessing.IRasterCommand

Remarks

This command changes the distribution of the red, green, or blue channels to make the colors in the image more accurate or more different.
Each color component is treated independently. The color range for each component is split into shadows, midtones and highlights based on the intensity. The values in each range are adjusted differently using the ColorIntensityBalanceCommandData classes. Positive values in a ColorIntensityBalanceCommandData class for a component cause that particular component to become brighter, whereas negative values cause the component to become darker. A value of 0 leaves the component unchanged.
The preserve luminance option aims to minimize the luminance change in the image.
This command supports only RGB images. It does not support grayscale images.
This command supports 48 and 64-bit color images. Support for 48 and 64-bit color images is available only in the Document/Medical toolkits.
This command does not support signed data images.
This command does not support 32-bit grayscale images.

For more information, refer to Changing Brightness and Contrast.
For more information, refer to Correcting Colors.

Example

Visual Basic
C#
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Public Sub ColorIntensityBalanceCommandExample()
   Dim codecs As New RasterCodecs()
   codecs.ThrowExceptionsOnInvalidImages = True

   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg"))

   ' Prepare the command
   Dim command As ColorIntensityBalanceCommand = New ColorIntensityBalanceCommand
   Dim Shadow As ColorIntensityBalanceCommandData = New ColorIntensityBalanceCommandData
   Dim MidTone As ColorIntensityBalanceCommandData = New ColorIntensityBalanceCommandData
   Dim HighLight As ColorIntensityBalanceCommandData = New ColorIntensityBalanceCommandData

   Shadow.Red = 60
   Shadow.Blue = 0
   Shadow.Green = 0

   MidTone.Red = 40
   MidTone.Blue = 0
   MidTone.Green = 0

   HighLight.Red = 70
   HighLight.Blue = 0
   HighLight.Green = 0

   command.Shadows = Shadow
   command.MidTone = MidTone
   command.HighLight = HighLight
   command.Luminance = False

   ' Balance the colors by increasing the red channel values.
   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

public void ColorIntensityBalanceCommandExample()
   {
      // Load an image
      RasterCodecs codecs = new RasterCodecs();
      codecs.ThrowExceptionsOnInvalidImages = true;

      RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg"));

      // Prepare the command
      ColorIntensityBalanceCommand command       = new ColorIntensityBalanceCommand();
      ColorIntensityBalanceCommandData Shadows   = new ColorIntensityBalanceCommandData();
      ColorIntensityBalanceCommandData MidTone   = new ColorIntensityBalanceCommandData();
      ColorIntensityBalanceCommandData HighLight = new ColorIntensityBalanceCommandData();

      Shadows.Red    = 60;
      Shadows.Blue   = 0;
      Shadows.Green  = 0;

      MidTone.Red    = 40;
      MidTone.Blue   = 0;
      MidTone.Green  = 0;

      HighLight.Red    = 70;
      HighLight.Blue   = 0;
      HighLight.Green  = 0;

      command.Shadows   = Shadows;
      command.MidTone   = MidTone;
      command.HighLight = HighLight;
      command.Luminance = false;

      // Balance the colors by increasing the red channel values.
      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";
}

[TestMethod]
public async Task ColorIntensityBalanceCommandExample()
{
   // Load an image
   RasterCodecs codecs = new RasterCodecs();
   codecs.ThrowExceptionsOnInvalidImages = true;
   // Load the image
   string srcFileName = @"Assets\Image1.cmp";
   StorageFile loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName);
   RasterImage image = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile));

   // Prepare the command
   ColorIntensityBalanceCommand command       = new ColorIntensityBalanceCommand();
   ColorIntensityBalanceCommandData Shadows   = new ColorIntensityBalanceCommandData();
   ColorIntensityBalanceCommandData MidTone   = new ColorIntensityBalanceCommandData();
   ColorIntensityBalanceCommandData HighLight = new ColorIntensityBalanceCommandData();

   Shadows.Red    = 60;
   Shadows.Blue   = 0;
   Shadows.Green  = 0;

   MidTone.Red    = 40;
   MidTone.Blue   = 0;
   MidTone.Green  = 0;

   HighLight.Red    = 70;
   HighLight.Blue   = 0;
   HighLight.Green  = 0;

   command.Shadows   = Shadows;
   command.MidTone   = MidTone;
   command.HighLight = HighLight;
   command.Luminance = false;

   // Balance the colors by increasing the red channel values.
   command.Run(image);

   string destFileName = @"result.jpg";
   StorageFile saveFile = await Tools.AppLocalFolder.CreateFileAsync(destFileName);
   await codecs.SaveAsync(image, LeadStreamFactory.Create(saveFile), RasterImageFormat.Jpeg, 0);
}

public void ColorIntensityBalanceCommandExample(RasterImage image, Stream outStream)
{
   // Prepare the command
   ColorIntensityBalanceCommand command       = new ColorIntensityBalanceCommand();
   ColorIntensityBalanceCommandData Shadows   = new ColorIntensityBalanceCommandData();
   ColorIntensityBalanceCommandData MidTone   = new ColorIntensityBalanceCommandData();
   ColorIntensityBalanceCommandData HighLight = new ColorIntensityBalanceCommandData();
   Shadows.Red    = 60;
   Shadows.Blue   = 0;
   Shadows.Green  = 0;

   MidTone.Red    = 40;
   MidTone.Blue   = 0;
   MidTone.Green  = 0;

   HighLight.Red    = 70;
   HighLight.Blue   = 0;
   HighLight.Green  = 0;

   command.Shadows   = Shadows;
   command.MidTone   = MidTone;
   command.HighLight = HighLight;
   command.Luminance = false;

   // Balance the colors by increasing the red channel values.
   command.Run(image);

   // Save result image
   RasterCodecs codecs = new RasterCodecs();
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24);
   image.Dispose();
}

Public Sub ColorIntensityBalanceCommandExample(ByVal image As RasterImage, ByVal outStream As Stream)
   ' Prepare the command
   Dim command As ColorIntensityBalanceCommand = New ColorIntensityBalanceCommand()
   Dim [Shadows] As ColorIntensityBalanceCommandData = New ColorIntensityBalanceCommandData()
   Dim MidTone As ColorIntensityBalanceCommandData = New ColorIntensityBalanceCommandData()
   Dim HighLight As ColorIntensityBalanceCommandData = New ColorIntensityBalanceCommandData()
   [Shadows].Red = 60
   [Shadows].Blue = 0
   [Shadows].Green = 0

   MidTone.Red = 40
   MidTone.Blue = 0
   MidTone.Green = 0

   HighLight.Red = 70
   HighLight.Blue = 0
   HighLight.Green = 0

   command.Shadows = [Shadows]
   command.MidTone = MidTone
   command.HighLight = HighLight
   command.Luminance = False

   ' Balance the colors by increasing the red channel values.
   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: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference