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ColoredPencilCommand Class

Applies an effect to an image that makes it look like it has been drawn with colored pencils. This method is available in the Imaging Pro and above toolkits.
public class ColoredPencilCommand : RasterCommand 
Public Class ColoredPencilCommand  
   Inherits RasterCommand 
public ref class ColoredPencilCommand : public RasterCommand   
  • This method applies an effect to an image that makes it look like it has been drawn with colored pencils.
  • As an example, if you use the following figure:

    If you call the ColoredPencilCommand using the following values:

    Parameter Value
    Ratio 90
    Dimension 3

    The following figure results:


  • This method 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 and 64 bit Effects images is available only in the Document/Medical toolkits.

  • This method does not support signed data images.
  • This command does not support 32-bit grayscale images.

For more information, refer to Removing Noise.


Run the ColoredPencilCommand on an image and applies the Colored Pencil filter.

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.SpecialEffects; 
public void ColoredPencilCommandExample() 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, @"ImageProcessingDemo\NaturalFruits.jpg")); 
   // Prepare the command 
   ColoredPencilCommand command = new ColoredPencilCommand(); 
   command.Ratio = 50; 
   command.Dimension = 3; 
   codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24); 
static class LEAD_VARS 
   public const string ImagesDir = @"C:\LEADTOOLS21\Resources\Images"; 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.SpecialEffects 
Public Sub ColoredPencilCommandExample() 
   Dim codecs As New RasterCodecs() 
   codecs.ThrowExceptionsOnInvalidImages = True 
   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "ImageProcessingDemo\\NaturalFruits.jpg")) 
   ' Prepare the command 
   Dim command As ColoredPencilCommand = New ColoredPencilCommand 
   command.Ratio = 50 
   command.Dimension = 3 
   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:\LEADTOOLS21\Resources\Images" 
End Class 

Target Platforms

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Leadtools.ImageProcessing.SpecialEffects Assembly