←Select platform

FunctionalLightCommand Class

Summary

Adds light to the image according to a function-based distribution. This light will be generated by one of the following methods: linear, quadratic, sine, cosine, or using freehand points. This method is available in the Imaging Pro and above toolkits.

Syntax

WinRT C#

C++

public class FunctionalLightCommand : Leadtools.Imageprocessing.Leadtools.ImageProcessing.RasterCommand, Leadtools.Imageprocessing.Leadtools.ImageProcessing.IRasterCommand

Public Class FunctionalLightCommand  
   Inherits Leadtools.Imageprocessing.Leadtools.ImageProcessing.RasterCommand 
   Implements Leadtools.Imageprocessing.Leadtools.ImageProcessing.IRasterCommand

public sealed class FunctionalLightCommand : Leadtools.Imageprocessing.Leadtools.ImageProcessing.IRasterCommand

function Leadtools.ImageProcessing.SpecialEffects.FunctionalLightCommand()

public ref class FunctionalLightCommand : public Leadtools.Imageprocessing.Leadtools.ImageProcessing.RasterCommand, Leadtools.Imageprocessing.Leadtools.ImageProcessing.IRasterCommand

Remarks

Controls the brightness of the image according to the method selected for generating the light.
This command supports all bits/pixel supported by LEADTOOLS.
This command supports 12-bit and 16-bit grayscale and 48-bit and 64-bit color images. Support for 12-bit and 16-bit grayscale and 48-bit and 64-bit color images is available only in the Document/Medical toolkits.
This command does not support signed data images.
This command does not support 32-bit grayscale images.

Example

Run the FunctionalLightCommand on an image.

WinRT C#

Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.SpecialEffects 
Imports Leadtools.ImageProcessing.Effects 
 
<TestMethod()> _ 
Public Sub FunctionalLightCommandExample() 
   Dim codecs As New RasterCodecs() 
   codecs.ThrowExceptionsOnInvalidImages = True 
   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "IMAGE1.CMP")) 
 
   ' Prepare the command 
   Dim command As FunctionalLightCommand = New FunctionalLightCommand 
   command.RedAmplitude = 75 
   command.Flags = FunctionalLightCommandFlags.LinearQuadratic Or FunctionalLightCommandFlags.LinearOuter 
   command.Origin = New LeadPoint(leadImage.Width \ 2, leadImage.Height \ 2) 
   ' Apply the linear lighting effect. 
   command.Run(leadImage) 
   codecs.Save(leadImage, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24) 
 
End Sub 
 
Public NotInheritable Class LEAD_VARS 
Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" 
End Class

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.SpecialEffects; 
using Leadtools.ImageProcessing.Effects; 
 
public void FunctionalLightCommandExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "IMAGE1.CMP")); 
 
   // Prepare the command 
   FunctionalLightCommand command = new FunctionalLightCommand(); 
   command.RedAmplitude =  75; 
   command.Flags         =  FunctionalLightCommandFlags.LinearQuadratic | 
      FunctionalLightCommandFlags.LinearOuter; 
   command.Origin       =  new LeadPoint((image.Width/2),(image.Height/2)); 
   // Apply the linear lighting effect. 
   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:\Users\Public\Documents\LEADTOOLS Images"; 
}

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.SpecialEffects; 
 
public async Task FunctionalLightCommandExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
   string srcFileName = @"Assets\Image1.cmp"; 
   StorageFile loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName); 
   RasterImage image = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile)); 
 
   // Prepare the command 
   FunctionalLightCommand command = new FunctionalLightCommand(); 
   command.RedAmplitude =  75; 
   command.Flags         =  FunctionalLightCommandFlags.LinearQuadratic | 
      FunctionalLightCommandFlags.LinearOuter; 
   command.Origin       =  LeadPointHelper.Create((image.Width/2),(image.Height/2)); 
   // Apply the linear lighting effect. 
   command.Run(image); 
 
   string destFileName = @"result.bmp"; 
   StorageFile saveFile = await Tools.AppLocalFolder.CreateFileAsync(destFileName); 
   await codecs.SaveAsync(image, LeadStreamFactory.Create(saveFile), RasterImageFormat.Bmp, 24); 
}