LowerAverage Property

Summary

Gets or sets an array that contains the new average pixel value for those pixels with values between 0 and the average pixel value for the entire image.

Syntax

Objective-C

C++/CLI

Java

Python

public int[] LowerAverage { get; set; }

@property (nonatomic, strong, nullable) NSArray<NSNumber *> *lowerAverage;

public int[ getLowerAverage(); 
public void setLowerAverage( 
   int[] int[Value 
);

public: 
property array<int>^ LowerAverage { 
   array<int>^ get(); 
   void set (    array<int>^ ); 
}

LowerAverage # get and set (LightControlCommand)

Property Value

An array that contains the new average pixel value for those pixels with values between 0 and the average pixel value for the entire image. The size of the array equals one, if Type is LightControlCommandType.Yuv or LightControlCommandType.Gray, or three, if Type is LightControlCommandType.Rgb. If Type is LightControlCommandType.Rgb the first element corresponds to the new blue lower average value, the second element to the green, and the last element to the red.

Example

Java

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Color; 
 
 
public void LightControlConstructorExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "dirty_barcode.jpg")); 
 
   // Prepare the command 
   int[] LowerAverage = new int[3]; 
   int[] Average = new int[3]; 
   int[] UpperAverage = new int[3]; 
   LowerAverage[0] = 100;  //for blue, gray or yuv 
   LowerAverage[1] = 120;  //for green 
   LowerAverage[2] = 80;   //for red 
   Average[0] = 210;       //for blue, gray or yuv 
   Average[1] = 210;       //for green 
   Average[2] = 210;       //for red 
   UpperAverage[0] = 255;  //for blue, gray or yuv 
   UpperAverage[1] = 255;  //for green 
   UpperAverage[2] = 255;  //for red  
   LightControlCommand command = new LightControlCommand(LowerAverage, Average, UpperAverage, LightControlCommandType.Yuv); 
   // change the lightness of the image. 
   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.color.*; 
 
 
public void lightControlConstructorExample() { 
 
   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, "noisy_barcode.jpg")); 
   System.out.println("Image loaded"); 
 
   // Prepare the command 
   int[] lowerAverage = new int[3]; 
   int[] average = new int[3]; 
   int[] upperAverage = new int[3]; 
   lowerAverage[0] = 100; // for blue, gray or yuv 
   lowerAverage[1] = 120; // for green 
   lowerAverage[2] = 80; // for red 
   average[0] = 210; // for blue, gray or yuv 
   average[1] = 210; // for green 
   average[2] = 210; // for red 
   upperAverage[0] = 255; // for blue, gray or yuv 
   upperAverage[1] = 255; // for green 
   upperAverage[2] = 255; // for red 
   LightControlCommand command = new LightControlCommand(lowerAverage, average, upperAverage, 
         LightControlCommandType.YUV); 
   // change the lightness of the image. 
   command.run(image); 
   System.out.println("Executed changes on loaded image..."); 
   codecs.save(image, combine(LEAD_VARS_IMAGES_DIR, "Result.jpg"), RasterImageFormat.JPEG, 24); 
 
   System.out.println("Command run and image saved to " + combine(LEAD_VARS_IMAGES_DIR, "Result.jpg")); 
   assertTrue(new File(combine(LEAD_VARS_IMAGES_DIR, "Result.jpg")).exists()); 
 
}

Requirements

Target Platforms

Reference

LightControlCommand Class

LightControlCommand Members

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Help Version 23.0.2024.3.3

Leadtools.ImageProcessing.Color Assembly

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Leadtools.ImageProcessing.Color Namespace

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