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++/CLI

Python

public class LightCommand : RasterCommand

public ref class LightCommand : public RasterCommand

class LightCommand(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:\LEADTOOLS22\Resources\Images"; 
}