LowThreshold Property

Summary

Threshold Value used to determine the low threshold for continuing the linking process.

Syntax

Objective-C

C++/CLI

Python

public int LowThreshold {get; set;}

@property (nonatomic, assign) NSInteger lowThreshold;

public:  
   property Int32 LowThreshold 
   { 
      Int32 get() 
      void set(Int32 value) 
   }

LowThreshold # get and set (CannyEdgeDetectorCommand)

Property Value

Threshold Value used to determine the low threshold for continuing the linking process.

Remarks

This value should be less than the value of CannyEdgeDetectorCommand-HighThreshold.

Example

using Leadtools; 
using Leadtools.Codecs; 
 
using Leadtools.ImageProcessing.Core; 
 
public void CannyEdgeDetectorCommandExample()  
{      
       
   RasterCodecs codecs = new RasterCodecs(); 
       
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "cannon.jpg"), 0, CodecsLoadByteOrder.Bgr, 1, 1); 
   CannyEdgeDetectorCommand Canny = new CannyEdgeDetectorCommand(); 
   Canny.Radius = 1; 
   Canny.LowThreshold = 2; 
   Canny.HighThreshold = 5; 
   Canny.Channels = CannyEdgeDetectorCommandChannels.Master; 
   Canny.Run(image); 
   codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "cannon_Canny.bmp"), Leadtools.RasterImageFormat.Bmp, 24, 1, 1, 1, Leadtools.Codecs.CodecsSavePageMode.Overwrite); 
 
   image.Dispose(); 
   codecs.Dispose(); 
       
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; 
}