LightCommand Class

Summary

Adds many spots of directed light sources to the image. This command is available in the Imaging Pro and above toolkits.

Syntax

C++

public class LightCommand : RasterCommand

  
Public Class LightCommand  
   Inherits RasterCommand

public ref class LightCommand : public RasterCommand

Remarks

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.

For more information, refer to Applying Artistic Effects. For more information, refer to Correcting Colors.

Example

Run the LightCommand on an image to change the red color by rotating its hue 90 degree.

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.SpecialEffects; 
 
public void LightCommandExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "sample5.cmp")); 
 
   // Prepare the command 
   LightCommandData[] Data = new LightCommandData[1]; 
   Data[0].Angle = 0; 
   Data[0].CenterPoint = new LeadPoint(image.Width / 2, image.Height / 2); 
   Data[0].Edge = 0; 
   Data[0].Brightness = 100; 
   Data[0].FillColor = new RasterColor(255, 255, 255); 
   Data[0].Height = Math.Min(image.Height, image.Width) / 2; 
   Data[0].Width = Math.Min(image.Height, image.Width) / 2; 
   Data[0].Opacity = 100; 
   Data[0].Type = LightCommandType.Spot; 
 
   LightCommand command = new LightCommand(); 
   command.Ambient = 100; 
   command.Bright = 100; 
   command.Data = Data; 
   command.AmbientColor = new RasterColor(255, 255, 255); 
   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:\LEADTOOLS21\Resources\Images"; 
}

Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.SpecialEffects 
 
Public Sub LightCommandExample() 
   Dim codecs As New RasterCodecs() 
   codecs.ThrowExceptionsOnInvalidImages = True 
 
   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "sample5.cmp")) 
 
   ' Prepare the command 
   Dim Data() As LightCommandData 
   ReDim Data(0) 
   Data(0) = New LightCommandData 
   Data(0).Angle = 0 
   Data(0).CenterPoint = New LeadPoint(leadImage.Width \ 2, leadImage.Height \ 2) 
   Data(0).Edge = 0 
   Data(0).Brightness = 100 
   Data(0).FillColor = New RasterColor(255, 255, 255) 
   Data(0).Height = Math.Min(leadImage.Height, leadImage.Width) \ 2 
   Data(0).Width = Math.Min(leadImage.Height, leadImage.Width) \ 2 
   Data(0).Opacity = 100 
   Data(0).Type = LightCommandType.Spot 
 
   Dim command As LightCommand = New LightCommand 
   command.Ambient = 100 
   command.Bright = 100 
   command.Data = Data 
   command.AmbientColor = New RasterColor(255, 255, 255) 
   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:\LEADTOOLS21\Resources\Images" 
End Class