HistogramContrastCommand Constructor(int)

Summary

Initializes a new HistogramContrastCommand class object with explicit parameters.

Syntax

Objective-C

C++/CLI

Java

Python

public HistogramContrastCommand( 
   int contrast 
)

- (instancetype)initWithContrast:(NSInteger)contrast NS_DESIGNATED_INITIALIZER;

public HistogramContrastCommand( 
   int contrast 
);

public: 
HistogramContrastCommand(  
   int contrast 
)

__init__(self,contrast) # Overloaded constructor

Parameters

contrast
Amount of contrast change. Valid values are -1000 to +1000.

Example

Run the HistogramContrastCommand on an image and apply histogram equalization with YUV color space.

Java

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Color; 
 
 
public void HistogramContrastConstructorExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "IMAGE1.CMP")); 
 
   // Prepare the command 
   HistogramEqualizeCommand command = new HistogramEqualizeCommand(HistogramEqualizeType.Yuv); 
   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 histogramContrastConstructorExample() { 
 
   final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images"; 
 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.setThrowExceptionsOnInvalidImages(true); 
 
   String srcFileName = combine(LEAD_VARS_IMAGES_DIR, "IMAGE1.CMP"); 
   RasterImage image = codecs.load(srcFileName); 
   System.out.println("Image loaded from: \n" + srcFileName); 
 
   // Prepare the command 
   HistogramEqualizeCommand command = new HistogramEqualizeCommand(HistogramEqualizeType.YUV); 
   // Execute the command 
   command.run(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

HistogramContrastCommand Class

HistogramContrastCommand Members

Overload List

Download our FREE evaluation

Help Version 23.0.2024.3.3

Leadtools.ImageProcessing.Color Assembly

Introduction

Getting Started

Namespaces

Leadtools.ImageProcessing.Color Namespace

Assemblies