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

SubtractBackgroundCommand Class

Example 





Members 
Removes the background from the image. .NET support WinRT support Silverlight support
Object Model
SubtractBackgroundCommand Class
Syntax
'Declaration
 
Public Class SubtractBackgroundCommand 
   Inherits Leadtools.ImageProcessing.RasterCommand
   Implements Leadtools.ImageProcessing.IRasterCommand 
'Usage
 
Dim instance As SubtractBackgroundCommand
public sealed class SubtractBackgroundCommand : Leadtools.ImageProcessing.IRasterCommand  
function Leadtools.ImageProcessing.Core.SubtractBackgroundCommand()
public ref class SubtractBackgroundCommand : public Leadtools.ImageProcessing.RasterCommand, Leadtools.ImageProcessing.IRasterCommand  
Remarks
For more information, refer to Changing Brightness and Contrast.
Example
 
Public Sub SubtractBackgroundCommandExample()
   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 SubtractBackgroundCommand = New SubtractBackgroundCommand
   command.RollingBall = 50
   command.BrightnessFactor = 100
   command.ShrinkingSize = SubtractBackgroundCommandType.DependOnRollingBallSize
   command.Flags = SubtractBackgroundCommandFlags.BackgroundIsDarker
   'Apply Subtract Background effect on the image.
   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 SubtractBackgroundCommandExample()
   {
      // Load an image
      RasterCodecs codecs = new RasterCodecs();
      codecs.ThrowExceptionsOnInvalidImages = true;

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

      // Prepare the command
      SubtractBackgroundCommand command = new SubtractBackgroundCommand();
      command.RollingBall      = 50;
      command.BrightnessFactor = 100;
      command.ShrinkingSize    = SubtractBackgroundCommandType.DependOnRollingBallSize;
      command.Flags            = SubtractBackgroundCommandFlags.BackgroundIsDarker;
      //Apply Subtract Background effect on the image.
      command.Run(image);

   }

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

   // Load the image
   var srcFileName = "Assets\\Image1.cmp";
   var processedImage;
   return Tools.AppInstallFolder().getFileAsync(srcFileName).then(function (loadFile) {
      return codecs.loadAsync(Leadtools.LeadStreamFactory.create(loadFile));
   }).then(function (image) {
      // Prepare the command
      with (Leadtools.ImageProcessing.Core) {
         var command = new SubtractBackgroundCommand();
         command.rollingBall      = 50;
         command.brightnessFactor = 100;
         command.shrinkingSize    = SubtractBackgroundCommandType.dependOnRollingBallSize;
         command.flags            = SubtractBackgroundCommandFlags.backgroundIsDarker;
         //Apply Subtract Background effect on the image.
         command.run(image);
      }
   });
}
[TestMethod]
public async Task SubtractBackgroundCommandExample()
{
   // 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
   SubtractBackgroundCommand command = new SubtractBackgroundCommand();
   command.RollingBall      = 50;
   command.BrightnessFactor = 100;
   command.ShrinkingSize    = SubtractBackgroundCommandType.DependOnRollingBallSize;
   command.Flags            = SubtractBackgroundCommandFlags.BackgroundIsDarker;
   //Apply Subtract Background effect on the image.
   command.Run(image);

}
public void SubtractBackgroundCommandExample(RasterImage image, Stream outStream)
{
   // Prepare the command
   SubtractBackgroundCommand command = new SubtractBackgroundCommand();
   command.RollingBall = 50;
   command.BrightnessFactor = 100;
   command.ShrinkingSize = SubtractBackgroundCommandType.DependOnRollingBallSize;
   command.Flags = SubtractBackgroundCommandFlags.BackgroundIsDarker;
   //Apply Subtract Background effect on the image.
   command.Run(image);
   // Save result image
   RasterCodecs codecs = new RasterCodecs();
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24);
   image.Dispose();
}
Public Sub SubtractBackgroundCommandExample(ByVal image As RasterImage, ByVal outStream As Stream)
   ' Prepare the command
   Dim command As SubtractBackgroundCommand = New SubtractBackgroundCommand()
   command.RollingBall = 50
   command.BrightnessFactor = 100
   command.ShrinkingSize = SubtractBackgroundCommandType.DependOnRollingBallSize
   command.Flags = SubtractBackgroundCommandFlags.BackgroundIsDarker
   'Apply Subtract Background effect on the image.
   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: 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

SubtractBackgroundCommand Members
Leadtools.ImageProcessing.Core Namespace
Changing Brightness and Contrast
Leadtools.ImageProcessing.Color.ChangeHueSaturationIntensityCommand
Leadtools.ImageProcessing.Color.ColorReplaceCommand
Leadtools.ImageProcessing.Color.ColorThresholdCommand
Leadtools.ImageProcessing.Effects.DirectionEdgeStatisticalCommand
Leadtools.ImageProcessing.Effects.StatisticsInformationCommand
Leadtools.ImageProcessing.Effects.FeretsDiameterCommand
Leadtools.ImageProcessing.Effects.ObjectInformationCommand
Leadtools.ImageProcessing.Color.MathematicalFunctionCommand
Leadtools.ImageProcessing.SpecialEffects.RevEffectCommand
Leadtools.ImageProcessing.Color.SegmentCommand
Leadtools.ImageProcessing.Effects.UserFilterCommand

 

 


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