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ColorCountCommand Class
See Also  Members  



Gets the number of unique colors in an image. Supported in Silverlight, Windows Phone 7

Object Model

ColorCountCommand Class

Syntax

Visual Basic (Declaration) 
Public Class ColorCountCommand 
   Inherits Leadtools.ImageProcessing.RasterCommand
   Implements IRasterCommand 
Visual Basic (Usage)Copy Code
Dim instance As ColorCountCommand
C# 
public class ColorCountCommand : Leadtools.ImageProcessing.RasterCommand, IRasterCommand  
C++/CLI 
public ref class ColorCountCommand : public Leadtools.ImageProcessing.RasterCommand, IRasterCommand  

Example

Run the ColorCountCommand on an image and display the number of unique colors in the specified image.

Visual BasicCopy Code
Public Sub ColorCountCommandExample()
   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 ColorCountCommand = New ColorCountCommand
   Dim colorCount As Integer
   'Get the number of colors in the image.

   command.Run(leadImage)
   colorCount = command.ColorCount
   MessageBox.Show("The image has " + colorCount.ToString() + " colors", "ColorCountCommand Results", MessageBoxButtons.OK)

End Sub

Public NotInheritable Class LEAD_VARS
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class
C#Copy Code
public void ColorCountCommandExample()
   {
      // Load an image
      RasterCodecs codecs = new RasterCodecs();
      codecs.ThrowExceptionsOnInvalidImages = true;

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

      // Prepare the command
      ColorCountCommand command = new ColorCountCommand();
      int colorCount;
      //Get the number of colors in the image.
      command.Run(image);
      colorCount = command.ColorCount;
      MessageBox.Show("The image has " + colorCount.ToString() + " colors","ColorCountCommand Results",MessageBoxButtons.OK);

   }

static class LEAD_VARS
{
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}
SilverlightCSharpCopy Code
public void ColorCountCommandExample(RasterImage image)
{
   // Prepare the command
   ColorCountCommand command = new ColorCountCommand();
   int colorCount;
   //Get the number of colors in the image.
   command.Run(image);
   colorCount = command.ColorCount;
   Debug.WriteLine("The image has " + colorCount.ToString() + " colors","ColorCountCommand Results", MessageBoxButton.OK);
}
SilverlightVBCopy Code
Public Sub ColorCountCommandExample(ByVal image As RasterImage)
   ' Prepare the command
   Dim command As ColorCountCommand = New ColorCountCommand()
   Dim colorCount As Integer
   'Get the number of colors in the image.
   command.Run(image)
   colorCount = command.ColorCount
   Debug.WriteLine("The image has " & colorCount.ToString() & " colors","ColorCountCommand Results", MessageBoxButton.OK)
End Sub

Remarks

  • This command supports 12 and 16-bit grayscale images. Support for 12 and 16-bit grayscale images is available only in the Document/Medical toolkits.
  • This command supports 32-bit grayscale images.

Inheritance Hierarchy

System.Object
   Leadtools.ImageProcessing.RasterCommand
      Leadtools.ImageProcessing.Color.ColorCountCommand

Requirements

Target Platforms: Silverlight, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7, MAC OS/X (Intel Only)

See Also