UseRegionOfInterest Property

Summary

Gets or sets the value that indicates whether to use a region of interest.

Syntax

Objective-C

C++/CLI

public bool UseRegionOfInterest { get; set; }

@property (nonatomic, assign) BOOL useRegionOfInterest;

public: 
property bool UseRegionOfInterest { 
   bool get(); 
   void set (    bool value); 
}

Property Value

true to Use a region of interest as specified in the RegionOfInterest property, false to command not to use the region of interest.

Remarks

If you do not want to use a region of interest, set this property to false. Otherwise, there may be a significant compression and speed performance loss.

Example

using Leadtools; 
using Leadtools.Dicom; 
 
 
public void TestChangeTransferSyntax() 
{ 
   string dicomFileName = Path.Combine(LEAD_VARS.ImagesDir, "DICOM", "image3.dcm"); 
   //Make sure to initialize the DICOM engine, this needs to be done only once  
   //In the whole application 
   DicomEngine.Startup(); 
   using (DicomDataSet ds = new DicomDataSet()) 
   { 
      //Load DICOM File 
      ds.Load(dicomFileName, DicomDataSetLoadFlags.None); 
 
      DicomJpeg2000Options options = ds.DefaultJpeg2000Options; 
 
      Console.WriteLine("JPEG 2000 Options:"); 
      Console.WriteLine("DicomJpeg2000Options.UseColorTransform            is : {0}", options.UseColorTransform); 
      Console.WriteLine("DicomJpeg2000Options.DerivedQuantization          is : {0}", options.DerivedQuantization); 
      Console.WriteLine("DicomJpeg2000Options.TargetFileSize               is : {0}", options.TargetFileSize); 
      Console.WriteLine("DicomJpeg2000Options.ImageAreaHorizontalOffset    is : {0}", options.ImageAreaHorizontalOffset); 
      Console.WriteLine("DicomJpeg2000Options.ImageAreaVerticalOffset      is : {0}", options.ImageAreaVerticalOffset); 
      Console.WriteLine("DicomJpeg2000Options.ReferenceTileWidth           is : {0}", options.ReferenceTileWidth); 
      Console.WriteLine("DicomJpeg2000Options.ReferenceTileHeight          is : {0}", options.ReferenceTileHeight); 
      Console.WriteLine("DicomJpeg2000Options.TileHorizontalOffset         is : {0}", options.TileHorizontalOffset); 
      Console.WriteLine("DicomJpeg2000Options.TileVerticalOffset           is : {0}", options.TileVerticalOffset); 
      Console.WriteLine("DicomJpeg2000Options.DecompositionLevels          is : {0}", options.DecompositionLevels); 
      Console.WriteLine("DicomJpeg2000Options.ProgressingOrder             is : {0}", options.ProgressingOrder); 
      Console.WriteLine("DicomJpeg2000Options.UseSopMarker                 is : {0}", options.UseSopMarker); 
      Console.WriteLine("DicomJpeg2000Options.UseEphMarker                 is : {0}", options.UseEphMarker); 
      Console.WriteLine("DicomJpeg2000Options.RegionOfInterest             is : {0}", options.RegionOfInterest); 
      Console.WriteLine("DicomJpeg2000Options.UseRegionOfInterest          is : {0}", options.UseRegionOfInterest); 
      Console.WriteLine("DicomJpeg2000Options.RegionOfInterestWeight       is : {0}", options.RegionOfInterestWeight); 
      Console.WriteLine("DicomJpeg2000Options.RegionOfInterestRectangle    is : {0}", options.RegionOfInterestRectangle); 
 
      options.CompressionControl = DicomJpeg2000CompressionControl.Ratio; 
      options.CompressionRatio = 50; 
 
      Console.WriteLine("Changed CompressionControl to DicomJpeg2000CompressionControl.Ratio and DicomJpeg2000CompressionControl.CompressionRatio to 50"); 
 
      ds.Jpeg2000Options = options; 
      ds.ChangeTransferSyntax(DicomUidType.JPEG2000, 2, ChangeTransferSyntaxFlags.None); 
      ds.Save(Path.Combine(LEAD_VARS.ImagesDir, "DICOM", "DicomJ2K.dcm"), DicomDataSetSaveFlags.None); 
   } 
   DicomEngine.Shutdown(); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; 
}

Requirements

Target Platforms

Reference

DicomJpeg2000Options Structure

DicomJpeg2000Options Members

RegionOfInterest Property

RegionOfInterestWeight Property

RegionOfInterestRectangle Property

Download our FREE evaluation

Help Version 22.0.2023.1.29

Leadtools.Dicom Assembly

Introduction

Getting Started

Namespaces

Leadtools.Dicom Namespace

Assemblies