ContourFilterCommand Class

Summary

Performs a contour segment filter on the source image. This command is available in the Document/Medical Toolkits.

Syntax

C++

public class ContourFilterCommand : RasterCommand

Public Class ContourFilterCommand  
   Inherits RasterCommand

public ref class ContourFilterCommand : public RasterCommand

Remarks

The bits per pixel of the affected image will change according to the value of Type property, or the type parameter of the constructor as follows:

If the type is	Bits per pixel will be:
Thin	8 bits per pixel grayscale
LinkBlackWhite	1 bit per pixel
LinkGray	8 bits per pixel grayscale
LinkColor	8 bits per pixel color
ApproxColor	8 bits per pixel color

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 32-bit grayscale images.

Example

Run the ContourFilterCommand on an image.

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Effects; 
 
public void ContourFilterCommandExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, @"ImageProcessingDemo\Beauty16.jpg"), 16, CodecsLoadByteOrder.BgrOrGray, 1, 1); 
 
   // Prepare the command 
   ContourFilterCommand command = new ContourFilterCommand(); 
   command.Threshold = 15; 
   command.DeltaDirection = 35; 
   command.MaximumError = 5; 
   command.Type = ContourFilterCommandType.Thin; 
   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:\Users\Public\Documents\LEADTOOLS Images"; 
}

Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Effects 
 
Public Sub ContourFilterCommandExample() 
   Dim codecs As New RasterCodecs() 
   codecs.ThrowExceptionsOnInvalidImages = True 
 
   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg")) 
 
   ' Prepare the command 
   Dim command As ContourFilterCommand = New ContourFilterCommand 
   command.Threshold = 15 
   command.DeltaDirection = 35 
   command.MaximumError = 5 
   command.Type = ContourFilterCommandType.Thin 
 
   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:\Users\Public\Documents\LEADTOOLS Images" 
End Class

Requirements

Target Platforms

Reference

ContourFilterCommand Members

Leadtools.ImageProcessing.Effects Namespace

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Help Version 20.0.2020.4.2

Leadtools.ImageProcessing.Effects Assembly

Introduction

Getting Started

Namespaces

Leadtools.ImageProcessing.Effects Namespace

Assemblies