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ColorCountCommand Class

Summary

Gets the number of unique colors in an image.

Syntax

Java

Objective-C

WinRT C#

C++

public class ColorCountCommand : RasterCommand

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

public sealed class ColorCountCommand : Leadtools.Imageprocessing.Leadtools.ImageProcessing.IRasterCommand

@interface LTColorCountCommand : LTRasterCommand

public class ColorCountCommand extends RasterCommand

function Leadtools.ImageProcessing.Color.ColorCountCommand()

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

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.

Example

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

Silverlight C#

Silverlight VB

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"; 
}

Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Color 
      Leadtools.Examples.Support.SetLicense() 
 
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; 
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

Requirements

Target Platforms

Reference

ColorCountCommand Members

Leadtools.ImageProcessing.Color Namespace

Leadtools.ImageProcessing.Core.WindowLevelCommand

Color Halftone and Halftone Images

Help Version 19.0.2017.10.27

Leadtools.ImageProcessing.Color Assembly

Introduction

Getting Started

Namespaces

Leadtools.ImageProcessing.Color Namespace

Assemblies