ColorLevelCommandData Class

Summary

The ColorLevelCommandData class contains color-leveling information for a specific color channel.

Syntax

Objective-C

C++/CLI

Java

Python

public class ColorLevelCommandData

@interface LTColorLevelCommandData : NSObject

public class ColorLevelCommandData

public ref class ColorLevelCommandData

class ColorLevelCommandData:

Remarks

The value of the MaximumInput property must be greater than the value of the MinimumInput property by at least 2.
If MinimumOutput > MaximumOutput then the image's shadows and highlights will be inverted for the given channel.
This class is used by the ColorLevelCommand class.
This class does not support 32-bit grayscale images.

Example

Run the ColorLevelCommand on an image.

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Color; 
 
 
public void ColorLevelCommandDataExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "IMAGE1.CMP")); 
 
   // Prepare the command 
   ColorLevelCommandData blue = new ColorLevelCommandData(); 
   ColorLevelCommandData master = new ColorLevelCommandData(); 
   //Specify Image levels 
   blue.MinimumInput = 20; 
   blue.MaximumInput = 200; 
   blue.MinimumOutput = 0; 
   blue.MaximumOutput = 255; 
   blue.Gamma = 100; 
   // Master will cause the image to be Inversed 
   master.MinimumInput = 0; 
   master.MaximumInput = 255; 
   master.MinimumOutput = 255; 
   master.MaximumOutput = 0; 
   master.Gamma = 100; 
   // Level the Blue and Master channels 
   ColorLevelCommand command = new ColorLevelCommand(master, null, null, blue, ColorLevelCommandFlags.Blue | ColorLevelCommandFlags.Master); 
   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

Reference

ColorLevelCommandData Members

Leadtools.ImageProcessing.Color Namespace

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Help Version 22.0.2023.3.31