Threshold Property

Summary

Gets or sets a value that indicates the threshold for modifying the original value of the pixel.

Syntax

Objective-C

C++/CLI

Java

Python

public int Threshold { get; set; }

@property (nonatomic, assign) NSInteger threshold;

public int getThreshold(); 
public void setThreshold( 
   int intValue 
);

public: 
property int Threshold { 
   int get(); 
   void set (    int ); 
}

Threshold # get and set (UnsharpMaskCommand)

Property Value

Value that indicates the threshold for modifying the original value of the pixel. If the difference in the original pixel value and the blurred pixel value is greater than the threshold value, the original pixel value will be modified.

Example

Java

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Effects; 
 
 
public void UnsharpMaskCommandExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "IMAGE1.CMP")); 
 
   // Prepare the command 
   UnsharpMaskCommand command = new UnsharpMaskCommand(); 
   command.Amount = 200; 
   command.Radius = 15; 
   command.Threshold = 50; 
   command.ColorType = UnsharpMaskCommandColorType.Rgb; 
   command.Run(image); 
 
} 
 
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 unsharpMaskCommandExample() { 
   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.cmp")); 
 
   // Prepare the command 
   UnsharpMaskCommand command = new UnsharpMaskCommand(); 
   command.setAmount(200); 
   command.setRadius(15); 
   command.setThreshold(50); 
   command.setColorType(UnsharpMaskCommandColorType.RGB); 
   assertTrue(command.getAmount() == 200 && command.getRadius() == 15 && command.getThreshold() == 50 
         && command.getColorType() == UnsharpMaskCommandColorType.RGB); 
   int change = command.run(image); 
   assertTrue(change != RasterImageChangedFlags.NONE); 
 
   codecs.save(image, combine(LEAD_VARS_IMAGES_DIR, "image1.cmp"), RasterImageFormat.CMP, 0); 
   System.out.println("Command run and image saved to " + combine(LEAD_VARS_IMAGES_DIR, "image1.cmp")); 
}

Requirements

Target Platforms

Reference

UnsharpMaskCommand Class

UnsharpMaskCommand Members

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Help Version 23.0.2024.3.3

Leadtools.ImageProcessing.Effects Assembly

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