AntiAliasingCommand Class

Summary

Applies an anti-aliasing filter to the specified image. This method is available in the Document/Medical Toolkits.

Syntax

Objective-C

C++/CLI

Java

Python

public class AntiAliasingCommand : RasterCommand

@interface LTAntiAliasingCommand : LTRasterCommand

public class AntiAliasingCommand 
    extends RasterCommand

public ref class AntiAliasingCommand : public RasterCommand

class AntiAliasingCommand(RasterCommand):

Remarks

The best results for anti-aliasing text can be obtained with the filter AntiAliasingCommandType.Type2.
The value of the Dimension property determines the extent of the anti-aliasing.
The threshold range for 16, 48 and 64-bit images is from 0 to 65535 and for 12-bit images the threshold range is from 0 to 4095. Otherwise, it is from 0 to 255. The threshold is applied on channels separately.
This command supports 12 and 16-bit grayscale and 48 and 64-bit color images. And can process the whole image or a region of the image. 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 32-bit grayscale images.

For more information, refer to Correcting Colors.

Anti Aliasing Function - Before

Anti Aliasing Function - After

View additional platform support for this Anti Aliasing function.

Example

Run the AntiAliasingCommand on an image and does anti-aliasing on it.

Java

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Effects; 
 
 
public void AntiAliasingCommandExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Jagged.jpg")); 
 
   // Prepare the command 
   AntiAliasingCommand command = new AntiAliasingCommand(); 
   //do the anti-aliasing on the image. 
   command.Threshold = 25; 
   command.Dimension = 7; 
   command.Filter = AntiAliasingCommandType.Type1; 
   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:\LEADTOOLS23\Resources\Images"; 
}

 
import java.io.File; 
import java.io.IOException; 
 
import org.junit.*; 
import org.junit.runner.JUnitCore; 
import org.junit.runner.Result; 
import org.junit.runner.notification.Failure; 
import static org.junit.Assert.*; 
 
import leadtools.*; 
import leadtools.codecs.*; 
import leadtools.imageprocessing.effects.*; 
 
 
public void antiAliasingCommandExample() { 
    final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images"; 
 
    // Load an image 
    RasterCodecs codecs = new RasterCodecs(); 
    codecs.setThrowExceptionsOnInvalidImages(true); 
 
    RasterImage image = codecs.load(combine(LEAD_VARS_IMAGES_DIR, "image1.jpg")); 
 
    // Prepare the command 
    AntiAliasingCommand command = new AntiAliasingCommand(); 
 
    // do the anti-aliasing on the image. 
    command.setThreshold(25); 
    command.setDimension(7); 
    command.setFilter(AntiAliasingCommandType.TYPE1); 
    int change = command.run(image); 
    assertTrue(change != RasterImageChangedFlags.NONE); 
 
    String outputFileName = combine(LEAD_VARS_IMAGES_DIR, "Result.jpg"); 
    codecs.save(image, outputFileName, RasterImageFormat.JPEG, 24); 
 
    System.out.println("Command run and image saved to " + outputFileName); 
}

Requirements

Target Platforms

Reference

AntiAliasingCommand Members

Leadtools.ImageProcessing.Effects Namespace

Correcting Colors

Leadtools.ImageProcessing.Color.AdjustTintCommand

ColorHalftoneCommand Class

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Help Version 23.0.2024.3.3

Leadtools.ImageProcessing.Effects Assembly

Introduction

Getting Started

Namespaces

Leadtools.ImageProcessing.Effects Namespace

Assemblies