←Select platform

ContrastBrightnessIntensityCommand Class

Summary
Applies contrast, brightness and intensity adjustments to enhance the image tonal range. This class is available in the Imaging Pro and above toolkits.
Syntax
C#
Objective-C
C++/CLI
Java
Python
public class ContrastBrightnessIntensityCommand : RasterCommand 
@interface LTContrastBrightnessIntensityCommand : LTRasterCommand 
public class ContrastBrightnessIntensityCommand 
    extends RasterCommand 
public ref class ContrastBrightnessIntensityCommand : public RasterCommand   
class ContrastBrightnessIntensityCommand(RasterCommand): 
Remarks
  • 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.

Contrast Brightness Intensity Function - Before

Contrast Brightness Intensity Function - Before

Contrast Brightness Intensity Function - After

Contrast Brightness Intensity Function - After

View additional platform support for this Contrast Brightness Intensity function.

Example

Run the ContrastBrightnessIntensityCommand on an image.

C#
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:\LEADTOOLS22\Resources\Images"; 
} 
Requirements

Target Platforms

Help Version 22.0.2023.3.31
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.

Leadtools.ImageProcessing.Color Assembly
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.