GlowCommand Class

Summary

Makes the colored edges shine with a neon glow. This command is available in the Imaging and above toolkits.

Syntax

C++/CLI

Python

public class GlowCommand : RasterCommand

public ref class GlowCommand : public RasterCommand

class GlowCommand(RasterCommand):

Remarks

This command detects the edge pixels by comparing the values of the pixel with surrounding pixels and if the edge value (the difference between the surrounding pixels and the pixel being evaluated) is greater than the Threshold value, the pixel is an edge pixel. The command then multiplies the values for the edge pixels by the brightness factor.
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 Correcting Colors. For more information, refer to Detecting and Enhancing Edges and Lines.

Glow Function - Before

Glow Function - After

View additional platform support for this Glow function.

Example

Run the GlowCommand on an image.

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.SpecialEffects; 
 
 
public void GlowCommandExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "sample5.cmp")); 
 
   // Prepare the command 
   GlowCommand command = new GlowCommand(); 
   command.Dimension = 5; 
   command.Brightness = 3; 
   command.Threshold = 0; 
   // Apply glow effect on the image. 
   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"; 
}