LEADTOOLS Image Processing (Leadtools.ImageProcessing.Color assembly)
LEAD Technologies, Inc

GrayScaleExtendedCommand Class

Example 





Members 
Converts any image to a gray scale image without changing its resolution. .NET support WinRT support Silverlight support
Object Model
GrayScaleExtendedCommand Class
Syntax
'Declaration
 
Public Class GrayScaleExtendedCommand 
   Inherits Leadtools.ImageProcessing.RasterCommand
   Implements Leadtools.ImageProcessing.IRasterCommand 
'Usage
 
Dim instance As GrayScaleExtendedCommand
public sealed class GrayScaleExtendedCommand : Leadtools.ImageProcessing.IRasterCommand  
function Leadtools.ImageProcessing.Color.GrayScaleExtendedCommand()
public ref class GrayScaleExtendedCommand : public Leadtools.ImageProcessing.RasterCommand, Leadtools.ImageProcessing.IRasterCommand  
Remarks
For more information, refer to Grayscale Images.
Example
 
Public Sub GrayScaleExtendedCommandExample()
   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 GrayScaleExtendedCommand = New GrayScaleExtendedCommand
   command.RedFactor = 300
   command.GreenFactor = 590
   command.BlueFactor = 110
   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 GrayScaleExtendedCommandExample()
   {
      // Load an image
      RasterCodecs codecs = new RasterCodecs();
      codecs.ThrowExceptionsOnInvalidImages = true;

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

      // Prepare the command
      GrayScaleExtendedCommand command = new GrayScaleExtendedCommand();
      command.RedFactor   = 300;
      command.GreenFactor = 590;
      command.BlueFactor  = 110;
      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 GrayScaleExtendedCommandExample()
{
   // 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
   GrayScaleExtendedCommand command = new GrayScaleExtendedCommand();
   command.RedFactor   = 300;
   command.GreenFactor = 590;
   command.BlueFactor  = 110;
   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 GrayScaleExtendedCommandExample(RasterImage image, Stream outStream)
{
   // Prepare the command
   GrayScaleExtendedCommand command = new GrayScaleExtendedCommand();
   command.RedFactor   = 300;
   command.GreenFactor = 590;
   command.BlueFactor  = 110;
   command.Run(image);
   // Save result image
   RasterCodecs codecs = new RasterCodecs();
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24);
   image.Dispose();
}
Public Sub GrayScaleExtendedCommandExample(ByVal image As RasterImage, ByVal outStream As Stream)
   ' Prepare the command
   Dim command As GrayScaleExtendedCommand = New GrayScaleExtendedCommand()
   command.RedFactor = 300
   command.GreenFactor = 590
   command.BlueFactor = 110
   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

See Also

Reference

GrayScaleExtendedCommand Members
Leadtools.ImageProcessing.Color Namespace
Grayscale Images
Leadtools.ImageProcessing.GrayscaleCommand
Leadtools.RasterImage.IsGray
ConvertToColoredGrayCommand Class
BalanceColorsCommand Class
SwapColorsCommand Class

 

 


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