Adjusts the image contrast using the Contrast Limited Adaptive Histogram Equalizer (CLAHE) method, Which uses several histograms, each corresponding to a distinct section in the image, while limiting the amplification of the noise in the image.
public class CLAHECommand : RasterCommand
Public Class CLAHECommand
Inherits RasterCommand
@interface LTCLAHECommand : LTRasterCommand
public class CLAHECommand extends RasterCommand
public ref class CLAHECommand : public RasterCommand
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Core;
public void CLAHECommandExample()
{
// Load an image
RasterCodecs codecs = new RasterCodecs();
codecs.ThrowExceptionsOnInvalidImages = true;
RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "IMAGE3.dcm"));
string destFileName = Path.Combine(LEAD_VARS.ImagesDir, "CLAHERes.Tif");
// Prepare the command
CLAHECommand command = new CLAHECommand();
//Apply a CLAHE filter.
command.Flags = CLAHECommandFlags.ApplyRayliehDistribution;
command.AlphaFactor = 0.65f;
command.TileHistClipLimit = 0.08f;
command.TilesNumber = 6;
command.BinNumber = 128;
command.Run(image);
// Save it to disk
codecs.Save(image, destFileName, RasterImageFormat.Tif, 16);
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing.Core
Public Sub CLAHECommandExample()
Dim codecs As New RasterCodecs()
codecs.ThrowExceptionsOnInvalidImages = True
Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "IMAGE3.dcm"))
' Prepare the command
Dim command As CLAHECommand = New CLAHECommand
'Apply a CLAHE filter.
command.Flags = CLAHECommandFlags.ApplyRayliehDistribution
command.AlphaFactor = 0.65F
command.TileHistClipLimit = 0.08F
command.TilesNumber = 6
command.BinNumber = 128
command.Run(leadImage)
End Sub
Public NotInheritable Class LEAD_VARS
Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class
Help Collections
Raster .NET | C API | C++ Class Library | HTML5 JavaScript
Document .NET | C API | C++ Class Library | HTML5 JavaScript
Medical .NET | C API | C++ Class Library | HTML5 JavaScript
Medical Web Viewer .NET
Multimedia
Direct Show .NET | C API | Filters
Media Foundation .NET | C API | Transforms
Supported Platforms
.NET, Java, Android, and iOS/macOS Assemblies
Imaging, Medical, and Document
C API/C++ Class Libraries
Imaging, Medical, and Document
HTML5 JavaScript Libraries
Imaging, Medical, and Document