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

LocalHistogramEqualizeCommand Constructor(Int32,Int32,Int32,Int32,Int32,HistogramEqualizeType)

Example 





The width of the local histogram equalizer rectangle in pixels. The width should be more than zero.
The height of the local histogram equalizer rectangle in pixels. The height should be more than zero.
The extension of the width of the local histogram equalizer rectangle, in pixels.
The extension of the height of the local histogram equalizer rectangle, in pixels.
Size of the area to be used when smoothing the edges between localized blocks. Possible values are between 0 and 7, but if Height is less than or equal to 7 then the maximum value for this item is Height - 1. If Smooth = 0 the edges will not be smoothed.
Flag that indicates which color space to equalize.
Initializes a new LocalHistogramEqualizeCommand class object with explicit parameters. .NET support WinRT support Silverlight support
Syntax
public LocalHistogramEqualizeCommand( 
   int width,
   int height,
   int widthExtension,
   int heightExtension,
   int smooth,
   HistogramEqualizeType type
)
'Declaration
 
Public Function New( _
   ByVal width As Integer, _
   ByVal height As Integer, _
   ByVal widthExtension As Integer, _
   ByVal heightExtension As Integer, _
   ByVal smooth As Integer, _
   ByVal type As HistogramEqualizeType _
)
'Usage
 
Dim width As Integer
Dim height As Integer
Dim widthExtension As Integer
Dim heightExtension As Integer
Dim smooth As Integer
Dim type As HistogramEqualizeType
 
Dim instance As New LocalHistogramEqualizeCommand(width, height, widthExtension, heightExtension, smooth, type)
public LocalHistogramEqualizeCommand( 
   int width,
   int height,
   int widthExtension,
   int heightExtension,
   int smooth,
   HistogramEqualizeType type
)
function LocalHistogramEqualizeCommand( 
   width ,
   height ,
   widthExtension ,
   heightExtension ,
   smooth ,
   type 
)
public:
LocalHistogramEqualizeCommand( 
   int width,
   int height,
   int widthExtension,
   int heightExtension,
   int smooth,
   HistogramEqualizeType type
)

Parameters

width
The width of the local histogram equalizer rectangle in pixels. The width should be more than zero.
height
The height of the local histogram equalizer rectangle in pixels. The height should be more than zero.
widthExtension
The extension of the width of the local histogram equalizer rectangle, in pixels.
heightExtension
The extension of the height of the local histogram equalizer rectangle, in pixels.
smooth
Size of the area to be used when smoothing the edges between localized blocks. Possible values are between 0 and 7, but if Height is less than or equal to 7 then the maximum value for this item is Height - 1. If Smooth = 0 the edges will not be smoothed.
type
Flag that indicates which color space to equalize.
Example
 
Public Sub LocalHistogramEqualizeConstructorExample()
   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 LocalHistogramEqualizeCommand = New LocalHistogramEqualizeCommand(15, 15, 100, 100, 0, HistogramEqualizeType.Yuv)
   ' Local Histogram equalize the image.
   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
public void LocalHistogramEqualizeConstructorExample()
   {
      // Load an image
      RasterCodecs codecs = new RasterCodecs();
      codecs.ThrowExceptionsOnInvalidImages = true;

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

      // Prepare the command
      LocalHistogramEqualizeCommand command = new LocalHistogramEqualizeCommand(15, 15, 100, 100, 0, HistogramEqualizeType.Yuv);
      // Local Histogram equalize the image.
      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";
}
[TestMethod]
public async Task LocalHistogramEqualizeConstructorExample()
{
   // 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
   LocalHistogramEqualizeCommand command = new LocalHistogramEqualizeCommand(15, 15, 100, 100, 0, HistogramEqualizeType.Yuv);
   // Local Histogram equalize the image.
   command.Run(image);

   string destFileName = @"result.jpg";
   StorageFile saveFile = await Tools.AppLocalFolder.CreateFileAsync(destFileName);
   await codecs.SaveAsync(image, LeadStreamFactory.Create(saveFile), RasterImageFormat.Jpeg, 0);
}
public void LocalHistogramEqualizeConstructorExample(RasterImage image, Stream outStream)
{
   // Prepare the command
   LocalHistogramEqualizeCommand command = new LocalHistogramEqualizeCommand(15, 15, 100, 100, 0, HistogramEqualizeType.Yuv);
   // Local Histogram equalize the image.
   command.Run(image);
   // Save result image
   RasterCodecs codecs = new RasterCodecs();
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24);
   image.Dispose();
}
Public Sub LocalHistogramEqualizeConstructorExample(ByVal image As RasterImage, ByVal outStream As Stream)
   ' Prepare the command
   Dim command As LocalHistogramEqualizeCommand = New LocalHistogramEqualizeCommand(15, 15, 100, 100, 0, HistogramEqualizeType.Yuv)
   ' Local Histogram equalize 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

LocalHistogramEqualizeCommand Class
LocalHistogramEqualizeCommand Members
Overload List

 

 


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