LEADTOOLS Image Processing (Leadtools.ImageProcessing.Core assembly)
LEAD Technologies, Inc

DigitalSubtractCommand Class

Example 





Members 
Subtracts the live image from the mask image to show the differences between the two images. This method is available in the Medical and above. .NET support WinRT support Silverlight support
Object Model
DigitalSubtractCommand Class
Syntax
'Declaration
 
Public Class DigitalSubtractCommand 
   Inherits Leadtools.ImageProcessing.RasterCommand
   Implements Leadtools.ImageProcessing.IRasterCommand 
'Usage
 
Dim instance As DigitalSubtractCommand
public sealed class DigitalSubtractCommand : Leadtools.ImageProcessing.IRasterCommand  
function Leadtools.ImageProcessing.Core.DigitalSubtractCommand()
public ref class DigitalSubtractCommand : public Leadtools.ImageProcessing.RasterCommand, Leadtools.ImageProcessing.IRasterCommand  
Remarks
For more information, refer to Introduction to Image Processing With LEADTOOLS.
Example
 
Public Sub DigitalSubtractCommandExample()
   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 MaskImage As RasterImage
   MaskImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "ImageProcessingDemo\Image3.cmp"), 4, CodecsLoadByteOrder.Bgr, 1, 1)

   Dim command As DigitalSubtractCommand = New DigitalSubtractCommand
   command.Flags = DigitalSubtractCommandFlags.ContrastEnhancement
   command.MaskImage = MaskImage
   command.Run(leadImage)

End Sub

Public NotInheritable Class LEAD_VARS
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class
public void DigitalSubtractCommandExample()
   {
      // Load an image
      RasterCodecs codecs = new RasterCodecs();
      codecs.ThrowExceptionsOnInvalidImages = true;

      RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg"));

      // Prepare the command
      RasterImage MaskImage;
      MaskImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg"), 4, CodecsLoadByteOrder.Bgr, 1, 1);

      DigitalSubtractCommand command = new DigitalSubtractCommand();
      command.Flags = DigitalSubtractCommandFlags.ContrastEnhancement;
      command.MaskImage = MaskImage;
      command.Run(image);

   }

static class LEAD_VARS
{
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}
function DigitalSubtractCommandExample()
{
   var codecs = new Leadtools.Codecs.RasterCodecs();
   codecs.throwExceptionsOnInvalidImages = true;
   var sourceImage;

   // Load the image
   var srcFileName = "Assets\\Image1.cmp";
   return Tools.AppInstallFolder().getFileAsync(srcFileName).then(function (loadFile) {
      return codecs.loadAsync(Leadtools.LeadStreamFactory.create(loadFile));
   }).then(function (image){
      sourceImage = image;
      return Tools.AppInstallFolder().getFileAsync(srcFileName);
   }).then(function (loadFile) {
      return codecs.loadAsync(Leadtools.LeadStreamFactory.create(loadFile), 4, Leadtools.Codecs.CodecsLoadByteOrder.bgr, 1, 1);
   }).then(function (MaskImage) {
      with (Leadtools.ImageProcessing.Core)
      {
         // Prepare the command
         var command = new DigitalSubtractCommand();
         command.flags = DigitalSubtractCommandFlags.contrastEnhancement;
         command.maskImage = MaskImage;
         command.run(sourceImage);
      }
   });  
}
[TestMethod]
public async Task DigitalSubtractCommandExample()
{
   // Load an image
   RasterCodecs codecs = new RasterCodecs();
   codecs.ThrowExceptionsOnInvalidImages = true;
   // Load the image
   string srcFileName = @"Assets\Image1.cmp";
   StorageFile loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName);
   RasterImage image = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile));

   // Prepare the command
   srcFileName = @"Assets\Image1.cmp";
   loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName);
   RasterImage MaskImage = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile), 4, CodecsLoadByteOrder.Bgr, 1, 1);

   DigitalSubtractCommand command = new DigitalSubtractCommand();
   command.Flags = DigitalSubtractCommandFlags.ContrastEnhancement;
   command.MaskImage = MaskImage;
   command.Run(image);

}
public void DigitalSubtractCommandExample(RasterImage image, RasterImage maskImage, Stream outStream)
{
   // Prepare the command
   DigitalSubtractCommand command = new DigitalSubtractCommand();
   command.Flags = DigitalSubtractCommandFlags.ContrastEnhancement;
   command.MaskImage = maskImage;
   command.Run(image);
   // Save result image
   RasterCodecs codecs = new RasterCodecs();
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24);
   image.Dispose();
   maskImage.Dispose();
}
Public Sub DigitalSubtractCommandExample(ByVal image As RasterImage, ByVal maskImage As RasterImage, ByVal outStream As Stream)
   ' Prepare the command
   Dim command As DigitalSubtractCommand = New DigitalSubtractCommand()
   command.Flags = DigitalSubtractCommandFlags.ContrastEnhancement
   command.MaskImage = maskImage
   command.Run(image)
   ' Save result image
   Dim codecs As RasterCodecs = New RasterCodecs()
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24)
   image.Dispose()
   maskImage.Dispose()
End Sub
Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

See Also

Reference

DigitalSubtractCommand Members
Leadtools.ImageProcessing.Core Namespace
Introduction to Image Processing With LEADTOOLS
ShiftDataCommand Class
SelectDataCommand Class
ColorizeGrayCommand Class
MultiscaleEnhancementCommand Class
Leadtools.ImageProcessing.Effects.CombineCommand

 

 


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