InvertCommand Class

Summary

Inverts the colors in the specified image, giving it the appearance of a photographic negative.

Syntax

Objective-C

C++

Java

public class InvertCommand : RasterCommand, IInPlaceDataCommand

Public Class InvertCommand  
   Inherits RasterCommand

@interface LTKernelInvertCommand : LTRasterCommand

public class InvertCommand extends RasterCommand

public ref class InvertCommand : public RasterCommand

Remarks

Use this command to invert the colors in the specified image, giving it the appearance of a photographic negative.

This command supports 12- and 16-bit grayscale and 48- and 64-bit color images. Support for 12- and 16-bit grayscale and 48- and 64-bit color images is available only in the Document/Medical toolkits. This command supports unsigned data images, but not signed ones. This command does not support 32-bit grayscale images. This function can only process entire images. It does not support regions.

Note: All RasterCommands in this assembly modify the underlying properties of the input RasterImage, including but not limited to:

BitsPerPixel
Data
IsMirrored

If you wish to avoid RasterImage property fidelity loss, pass a clone of your RasterImage to all RasterCommands in this assembly.

Example

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing; 
using Leadtools.ImageProcessing.Kernel; 
 
public void InvertCommandExample() 
{ 
   using (RasterCodecs codecs = new RasterCodecs()) 
   { 
      // Load an image 
      using (RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "cannon.jpg"))) 
      { 
         // Invert the image colors 
         InvertCommand command = new InvertCommand(); 
         command.Run(image); 
 
         codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "Result.bmp"), RasterImageFormat.Bmp, 24); 
      } 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; 
}

Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Kernel 
 
Public Sub InvertCommandExample() 
   Using codecs As RasterCodecs = New RasterCodecs() 
      Using image As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp")) 
         ' Invert the image colors 
         Dim command As InvertCommand = New InvertCommand() 
         command.Run(image) 
 
         codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "Result.bmp"), RasterImageFormat.Bmp, 24) 
 
      End Using 
   End Using 
End Sub 
 
Public NotInheritable Class LEAD_VARS 
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" 
End Class

Requirements

Target Platforms

Reference

InvertCommand Members

Leadtools.ImageProcessing.Kernel Namespace

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Help Version 20.0.2020.3.31

Leadtools.ImageProcessing.Kernel Assembly

Introduction

Getting Started

Namespaces

Leadtools.ImageProcessing.Kernel Namespace

Assemblies