ColorCountCommand Class

C#
Visual Basic
WinRT C#
Java
Objective-C
WinRT JavaScript
C++

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

'Declaration

Public Class ColorCountCommand 
   Inherits Leadtools.ImageProcessing.RasterCommand
   Implements Leadtools.ImageProcessing.IRasterCommand

'Usage

Dim instance As ColorCountCommand

public sealed class ColorCountCommand : Leadtools.ImageProcessing.IRasterCommand

@interface LTColorCountCommand : LTRasterCommand

public class ColorCountCommand extends RasterCommand

function Leadtools.ImageProcessing.Color.ColorCountCommand()

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

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.

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

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

Copy Code

Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing.Color

   
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

using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Color;

      
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";
}

using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Color;

      
public async Task ColorCountCommandExample()
{
   // 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
   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");

}

using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Color;
using Leadtools.Examples;

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);
}

Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing.Color

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

Target Platforms

Reference

ColorCountCommand Members
Leadtools.ImageProcessing.Color Namespace
Leadtools.ImageProcessing.Core.WindowLevelCommand
Color Halftone and Halftone Images