←Select platform

ColorReplaceCommand Class

Summary
Replaces the specified color by adjusting values of hue, saturation and brightness.
Syntax
C#
Objective-C
C++/CLI
Java
Python
public class ColorReplaceCommand : RasterCommand 
@interface LTColorReplaceCommand : LTRasterCommand 
public class ColorReplaceCommand 
    extends RasterCommand 
public ref class ColorReplaceCommand : public RasterCommand   
class ColorReplaceCommand(RasterCommand): 
Remarks
  • This command replaces the specified color by adjusting value of hue, saturation and brightness. The value of the Fuzziness property of the ColorReplaceCommandColor class determines the range around each color where the pixels will be changed according to Hue, Saturation and Brightness.
  • 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 Introduction to Image Processing With LEADTOOLS. For more information, refer to Correcting Colors.

Color Replace Function - Before

Color Replace Function - Before

Color Replace Function - After

Color Replace Function - After

View additional platform support for this Color Replace function.

Example

Run the ColorReplaceCommand on an image to change the red color by rotating its hue 90 degree.

C#
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Color; 
 
 
public void ColorReplaceCommandExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "cannon.jpg")); 
 
   // Prepare the command 
   ColorReplaceCommand command = new ColorReplaceCommand(); 
   ColorReplaceCommandColor[] data = new ColorReplaceCommandColor[1]; 
   data[0] = new ColorReplaceCommandColor(); 
   data[0].Color = new RasterColor(200, 0, 35); 
   data[0].Fuzziness = 100; 
   command.Colors = data; 
   command.Hue = 9000; 
   command.Saturation = 0; 
   command.Brightness = 0; 
   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

See Also

Reference

ColorReplaceCommand Members

Leadtools.ImageProcessing.Color Namespace

Introduction to Image Processing With LEADTOOLS

Correcting Colors

ChangeIntensityCommand Class

GammaCorrectCommand Class

ChangeContrastCommand Class

HistogramContrastCommand Class

StretchIntensityCommand Class

RemapIntensityCommand Class

InvertCommand Class

ChangeSaturationCommand Class

HistogramEqualizeCommand Class

Leadtools.ImageProcessing.FillCommand

HistogramCommand Class

Leadtools.ImageProcessing.Core.WindowLevelCommand

ChangeHueCommand Class

Leadtools.ImageProcessing.Effects.AverageCommand

Leadtools.ImageProcessing.Core.MedianCommand

Leadtools.ImageProcessing.Effects.AddNoiseCommand

IntensityDetectCommand Class

Leadtools.ImageProcessing.Effects.SpatialFilterCommand

Leadtools.ImageProcessing.Effects.BinaryFilterCommand

Leadtools.ImageProcessing.Core.MaximumCommand

Leadtools.ImageProcessing.Core.MinimumCommand

Leadtools.ImageProcessing.SpecialEffects.ShadowCommand

ChangeHueSaturationIntensityCommand Class

ColorThresholdCommand Class

Leadtools.ImageProcessing.Effects.DirectionEdgeStatisticalCommand

Leadtools.ImageProcessing.Core.DiscreteFourierTransformCommand

Leadtools.ImageProcessing.Core.FastFourierTransformCommand

Leadtools.ImageProcessing.Core.FourierTransformDisplayCommand

Leadtools.ImageProcessing.Core.FrequencyFilterCommand

Leadtools.ImageProcessing.Core.FrequencyFilterMaskCommand

MathematicalFunctionCommand Class

Leadtools.ImageProcessing.SpecialEffects.RevEffectCommand

SegmentCommand Class

Leadtools.ImageProcessing.Core.SubtractBackgroundCommand

Leadtools.ImageProcessing.Effects.UserFilterCommand

AdjustTintCommand Class

Leadtools.ImageProcessing.Core.HalfToneCommand

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.