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SharpenCommand Class

Summary

Increases or decreases the sharpness of a specific image.

Syntax
C#
VB
Java
Objective-C
C++
public class SharpenCommand : RasterCommand 
Public Class SharpenCommand  
   Inherits RasterCommand 
@interface LTSharpenCommand : LTRasterCommand 
public class SharpenCommand extends RasterCommand 
public ref class SharpenCommand : public RasterCommand   

Remarks
  • Negative sharpness values decrease the sharpness of the image. Specify -1000 for minimum sharpness. Positive sharpness values increase the sharpness. Specify +1000 for maximum sharpness.
  • 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.
  • This command supports signed/unsigned data images.

For more information, refer to Detecting and Enhancing Edges and Lines.

Example

Run the SharpenCommand on an image and increases its sharpness.

C#
VB
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Effects; 
 
public void SharpenCommandCommandExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "IMAGE1.CMP")); 
 
   // Prepare the command 
   SharpenCommand command = new SharpenCommand(); 
   //Increase the sharpness by 25 percent  of the possible range. 
   command.Sharpness = 950; 
   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 SharpenCommandCommandExample() 
   Dim codecs As New RasterCodecs() 
   codecs.ThrowExceptionsOnInvalidImages = True 
 
   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "IMAGE1.CMP")) 
 
   ' Prepare the command 
   Dim command As SharpenCommand = New SharpenCommand 
   'Increase the sharpness by 25 percent  of the possible range. 
   command.Sharpness = 250 
 
   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 
c#[Silverlight C# Example] 
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Effects; 
using Leadtools.Examples; 
 
public void SharpenCommandCommandExample(RasterImage image, Stream outStream) 
{ 
   // Prepare the command 
   SharpenCommand command = new SharpenCommand(); 
   //Increase the sharpness by 25 percent  of the possible range. 
   command.Sharpness = 950; 
   command.Run(image); 
   // Save result image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24); 
   image.Dispose(); 
} 
vb[Silverlight VB Example] 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Effects 
 
Public Sub SharpenCommandCommandExample(ByVal image As RasterImage, ByVal outStream As Stream) 
   ' Prepare the command 
   Dim command As SharpenCommand = New SharpenCommand() 
   'Increase the sharpness by 25 percent  of the possible range. 
   command.Sharpness = 950 
   command.Run(image) 
   ' Save result image 
   Dim codecs As RasterCodecs = New RasterCodecs() 
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24) 
   image.Dispose() 
End Sub 

Requirements

Target Platforms

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Leadtools.ImageProcessing.Effects Assembly