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ZeroToNegativeCommand Constructor(Int32,Int32,Int32,Int32,Int32)
See Also  Example
Leadtools.ImageProcessing.Core Namespace > ZeroToNegativeCommand Class > ZeroToNegativeCommand Constructor : ZeroToNegativeCommand Constructor(Int32,Int32,Int32,Int32,Int32)



shiftAmount
Value that is used to shift the image data to the negative side.
minimumInput
The image minimum value. This value can be optained MinMaxValuesCommand
maximumInput
The image maximum value. This value can be optained MinMaxValuesCommand
minimumOutput
The minimum allowed value, which means that the image data values after applying the command will not be less than this value.
maximumOutput
The maximum allowed value, which means that the image data values after applying the command will not axceed this value.
Initializes a new ZeroToNegativeCommand class object with explicit parameters. Supported in Silverlight, Windows Phone 7

Syntax

Visual Basic (Declaration) 
Public Function New( _
   ByVal shiftAmount As Integer, _
   ByVal minimumInput As Integer, _
   ByVal maximumInput As Integer, _
   ByVal minimumOutput As Integer, _
   ByVal maximumOutput As Integer _
)
Visual Basic (Usage)Copy Code
Dim shiftAmount As Integer
Dim minimumInput As Integer
Dim maximumInput As Integer
Dim minimumOutput As Integer
Dim maximumOutput As Integer
 
Dim instance As New ZeroToNegativeCommand(shiftAmount, minimumInput, maximumInput, minimumOutput, maximumOutput)
C# 
public ZeroToNegativeCommand( 
   int shiftAmount,
   int minimumInput,
   int maximumInput,
   int minimumOutput,
   int maximumOutput
)
C++/CLI 
public:
ZeroToNegativeCommand( 
   int shiftAmount,
   int minimumInput,
   int maximumInput,
   int minimumOutput,
   int maximumOutput
)

Parameters

shiftAmount
Value that is used to shift the image data to the negative side.
minimumInput
The image minimum value. This value can be optained MinMaxValuesCommand
maximumInput
The image maximum value. This value can be optained MinMaxValuesCommand
minimumOutput
The minimum allowed value, which means that the image data values after applying the command will not be less than this value.
maximumOutput
The maximum allowed value, which means that the image data values after applying the command will not axceed this value.

Example

This command will apply Leadtools.ImageProcessing.Core.MultiscaleEnhancementCommand on a signed image, but since MultiscaleEnhancementCommand doesn't support signed images, we will convert the image to unsigned image, apply the effect, and then convert it back to signed image.

Visual BasicCopy Code
Public Sub ZeroToNegativeConstructorExample()
   Dim codecs As New RasterCodecs()
   codecs.ThrowExceptionsOnInvalidImages = True

   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "ImageProcessingDemo\Beauty16.jpg"))

   ' Prepare the command
   ' Convert the image to unsigned image by shifting the negative values to become positive.
   Dim MinToZCommand As MinimumToZeroCommand = New MinimumToZeroCommand
   MinToZCommand.Run(leadImage)

   ' Apply multiscale enhancement
   Dim MultiScaleCommand As MultiscaleEnhancementCommand = New MultiscaleEnhancementCommand(2000, 4, -1, 0, 0, MultiscaleEnhancementCommandType.Gaussian, MultiscaleEnhancementCommandFlags.EdgeEnhancement)

   ' Convert the image back to signed by shifting the same amount in the negative side.
   Dim command As ZeroToNegativeCommand = New ZeroToNegativeCommand(MinToZCommand.ShiftAmount, -32767, 32766, 0, 65535)
   command.Run(leadImage)

End Sub

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

      RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, @"ImageProcessingDemo\Beauty16.jpg"));

      // Prepare the command
      // Convert the image to unsigned image by shifting the negative values to become positive.
      MinimumToZeroCommand MinToZCommand = new MinimumToZeroCommand();
      MinToZCommand.Run(image); 

      // Apply multiscale enhancement
      MultiscaleEnhancementCommand MultiScaleCommand = new MultiscaleEnhancementCommand(2000, 4, -1, 0, 0, MultiscaleEnhancementCommandType.Gaussian, MultiscaleEnhancementCommandFlags.EdgeEnhancement);

      // Convert the image back to signed by shifting the same amount in the negative side.
      ZeroToNegativeCommand command = new ZeroToNegativeCommand(MinToZCommand.ShiftAmount, -32767, 32766, 0, 65535);
      command.Run(image);

   }

static class LEAD_VARS
{
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}
SilverlightCSharpCopy Code
public void ZeroToNegativeConstructorExample(RasterImage image, Stream outStream)
{
   // Prepare the command
   // Convert the image to unsigned image by shifting the negative values to become positive.
   MinimumToZeroCommand MinToZCommand = new MinimumToZeroCommand();
   MinToZCommand.Run(image);
   // Apply multiscale enhancement
   MultiscaleEnhancementCommand MultiScaleCommand = new MultiscaleEnhancementCommand(2000, 4, -1, 0, 0, MultiscaleEnhancementCommandType.Gaussian, MultiscaleEnhancementCommandFlags.EdgeEnhancement);

   // Convert the image back to signed by shifting the same amount in the negative side.
   ZeroToNegativeCommand command = new ZeroToNegativeCommand(MinToZCommand.ShiftAmount, -32767, 32766, 0, 65535);
   command.Run(image);
   // Save result image
   RasterCodecs codecs = new RasterCodecs();
   codecs.Save(image, outStream, RasterImageFormat.DicomGray, image.BitsPerPixel);
   image.Dispose();
}
SilverlightVBCopy Code
Public Sub ZeroToNegativeConstructorExample(ByVal image As RasterImage, ByVal outStream As Stream)
   ' Prepare the command
   ' Convert the image to unsigned image by shifting the negative values to become positive.
   Dim MinToZCommand As MinimumToZeroCommand = New MinimumToZeroCommand()
   MinToZCommand.Run(image)
   ' Apply multiscale enhancement
   Dim MultiScaleCommand As MultiscaleEnhancementCommand = New MultiscaleEnhancementCommand(2000, 4, -1, 0, 0, MultiscaleEnhancementCommandType.Gaussian, MultiscaleEnhancementCommandFlags.EdgeEnhancement)

   ' Convert the image back to signed by shifting the same amount in the negative side.
   Dim command As ZeroToNegativeCommand = New ZeroToNegativeCommand(MinToZCommand.ShiftAmount, -32767, 32766, 0, 65535)
   command.Run(image)
   ' Save result image
   Dim codecs As RasterCodecs = New RasterCodecs()
   codecs.Save(image, outStream, RasterImageFormat.DicomGray, image.BitsPerPixel)
   image.Dispose()
End Sub

Requirements

Target Platforms: Silverlight 3.0, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7, MAC OS/X (Intel Only)

See Also