ContrastBrightnessIntensityCommand Class

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

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

'Declaration

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

'Usage

Dim instance As ContrastBrightnessIntensityCommand

public sealed class ContrastBrightnessIntensityCommand : Leadtools.ImageProcessing.IRasterCommand

@interface LTContrastBrightnessIntensityCommand : LTRasterCommand

public class ContrastBrightnessIntensityCommand extends RasterCommand

function Leadtools.ImageProcessing.Color.ContrastBrightnessIntensityCommand()

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

The transformations are applied in this order: Contrast, Brightness then Intensity. Were the three commands to be called separately, then after each method was applied calculated values less than 0 and more than 255 (for 8 bits per component for example) would be clamped to 0 and 255 respectively. Using this method, the values are accumulative and the final result would be clamped. In addition, this command is faster than calling each method separately.
It also can process the whole image or a region of the image. If an image has a region, the effect is applied only to the region.
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 does not support signed data images.
This command does not support 32-bit grayscale images.

For more information, refer to Changing Brightness and Contrast.

Run the ContrastBrightnessIntensityCommand on an 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 ContrastBrightnessIntensityCommandExample()
   Dim codecs As New RasterCodecs()
   codecs.ThrowExceptionsOnInvalidImages = True
   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "IMAGE1.CMP"))

   ' Prepare the command
   Dim command As ContrastBrightnessIntensityCommand = New ContrastBrightnessIntensityCommand
   command.Contrast = -146
   command.Brightness = 358
   command.Intensity = 240
   command.Run(leadImage)
   codecs.Save(leadImage, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24)

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 ContrastBrightnessIntensityCommandExample()
{
   // Load an image
   RasterCodecs codecs = new RasterCodecs();
   codecs.ThrowExceptionsOnInvalidImages = true;
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "IMAGE1.CMP"));

   // Prepare the command
   ContrastBrightnessIntensityCommand command = new ContrastBrightnessIntensityCommand();
   command.Contrast = -146;
   command.Brightness = 358;
   command.Intensity = 240;
   command.Run(image);
   codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24);

}

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 ContrastBrightnessIntensityCommandExample()
{
   // 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
   ContrastBrightnessIntensityCommand command = new ContrastBrightnessIntensityCommand();
   command.Contrast = -146;
   command.Brightness = 358;
   command.Intensity = 240;
   command.Run(image);

   string destFileName = @"result.jpg";
   StorageFile saveFile = await Tools.AppLocalFolder.CreateFileAsync(destFileName);
   await codecs.SaveAsync(image, LeadStreamFactory.Create(saveFile), RasterImageFormat.Jpeg, 0);
}

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

public void ContrastBrightnessIntensityCommandExample(RasterImage image, Stream outStream)
{
   // Prepare the command
   ContrastBrightnessIntensityCommand command = new ContrastBrightnessIntensityCommand();
   command.Contrast = -146;
   command.Brightness = 358;
   command.Intensity = 240;
   command.Run(image);
   // Save result image
   RasterCodecs codecs = new RasterCodecs();
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24);
   image.Dispose();
}

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

Public Sub ContrastBrightnessIntensityCommandExample(ByVal image As RasterImage, ByVal outStream As Stream)
   ' Prepare the command
   Dim command As ContrastBrightnessIntensityCommand = New ContrastBrightnessIntensityCommand()
   command.Contrast = -146
   command.Brightness = 358
   command.Intensity = 240
   command.Run(image)
   ' Save result image
   Dim codecs As RasterCodecs = New RasterCodecs()
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24)
   image.Dispose()
End Sub

Target Platforms

Reference