EdgeDetectEffectCommand Class

Summary

Performs edge detection on the image.

Syntax

Objective-C

C++/CLI

Java

Python

public class EdgeDetectEffectCommand : RasterCommand

@interface LTEdgeDetectEffectCommand : LTRasterCommand

public class EdgeDetectEffectCommand 
    extends RasterCommand

public ref class EdgeDetectEffectCommand : public RasterCommand

class EdgeDetectEffectCommand(RasterCommand):

Remarks

This command detects the edges in an image and then replaces the values of edges by new values calculated according to the Type.
This command supports 12 and 16-bit grayscale and 48 and 64-bit color images. Support for 12 and 16-bit grayscale and 48 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 Detecting and Enhancing Edges and Lines.

Edge Detect Effect Function - Before

Edge Detect Effect Function - After

View additional platform support for this Edge Detect Effect function.

Example

Run the EdgeDetectEffectCommand on an image.

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Effects; 
 
 
public void EdgeDetectEffectCommandExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "sample5.cmp")); 
 
   // Prepare the command 
   EdgeDetectEffectCommand command = new EdgeDetectEffectCommand(); 
   command.Level = 50; 
   command.Threshold = 0; 
   command.Type = EdgeDetectEffectCommandType.Smooth; 
   // Apply find edges 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:\LEADTOOLS22\Resources\Images"; 
}