ChangeContrastCommand Constructor(int)

Summary

Initializes a new ChangeContrastCommand class object with explicit parameters.

Syntax

Objective-C

C++/CLI

Java

Python

public ChangeContrastCommand( 
   int contrast 
)

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

public ChangeContrastCommand( 
   int contrast 
);

public: 
ChangeContrastCommand(  
   int contrast 
)

__init__(self,contrast) # Overloaded constructor

Parameters

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

Example

Run the ChangeContrastCommand on an image and increase its contrast.

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Color; 
 
 
public void ChangeContrastConstructorExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "ImageProcessingDemo\\Image1.jpg")); 
 
   // Prepare the command 
   ChangeContrastCommand command = new ChangeContrastCommand(250); 
 
   // Increase the contrast  by 25 percent  of the possible range. 
   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"; 
}