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ColorCountCommand Class
See Also  Members   Example 




Gets the number of unique colors in an image.

Syntax

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

Example

Visual BasicCopy Code
ImageProcessing.Color.ColorCountCommand
   Public Sub ColorCountCommandExample()
      RasterCodecs.Startup()
      Dim codecs As New RasterCodecs()
      codecs.ThrowExceptionsOnInvalidImages = True

      Dim leadImage As RasterImage = codecs.Load("C:\Program Files\LEAD Technologies\LEADTOOLS 15\Images\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)

      RasterCodecs.Shutdown()
   End Sub
C#Copy Code
ImageProcessing.Color.ColorCountCommand 
      public void ColorCountCommandExample() 
      { 
         // Load an image 
         RasterCodecs.Startup(); 
         RasterCodecs codecs = new RasterCodecs(); 
         codecs.ThrowExceptionsOnInvalidImages = true; 
 
         RasterImage image = codecs.Load(@"C:\Program Files\LEAD Technologies\LEADTOOLS 15\Images\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); 
 
         RasterCodecs.Shutdown(); 
      }

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: Microsoft .NET Framework 2.0, Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

See Also