DicomImagePhotometricInterpretationType Enumeration

Summary

Represents the Photometric constant.

Syntax

Objective-C

C++/CLI

Java

public enum DicomImagePhotometricInterpretationType

typedef NS_ENUM(NSInteger, LTDicomImagePhotometricInterpretationType) { 
	LTDicomImagePhotometricInterpretationTypeMonochrome1,  
	LTDicomImagePhotometricInterpretationTypeMonochrome2,  
	LTDicomImagePhotometricInterpretationTypePaletteColor,  
	LTDicomImagePhotometricInterpretationTypeRgb,  
	LTDicomImagePhotometricInterpretationTypeArgb,  
	LTDicomImagePhotometricInterpretationTypeCmyk,  
	LTDicomImagePhotometricInterpretationTypeYbrFull422,  
	LTDicomImagePhotometricInterpretationTypeYbrFull,  
	LTDicomImagePhotometricInterpretationTypeYbrRct,  
	LTDicomImagePhotometricInterpretationTypeYbrIct,  
};

public enum DicomImagePhotometricInterpretationType

public enum class DicomImagePhotometricInterpretationType

Members

Value	Member	Description
0	Monochrome1	8-bits or 16-bits per pixel, grayscale image with the minimum sample value is intended to be displayed as white.
1	Monochrome2	8-bits or 16-bits per pixel, grayscale image with the minimum sample value is intended to be displayed as black.
2	PaletteColor	8-bits per pixel, palettized color image.
3	Rgb	24-bits per pixel, RGB color image.
4	Argb	24-bits per pixel color image (Retired)
5	Cmyk	CMYK (Retired)
6	YbrFull422	Each pair of pixels is 4 bytes. Each pixel has luminence (Y) but shares chroma (B and R).
7	YbrFull	Each pixel has one byte for luminence (Y) and two bytes for chroma (B and R).
8	YbrRct	Reversible Color Transformation
9	YbrIct	Irreversible Color Transformation

Example

using Leadtools; 
using Leadtools.Dicom; 
 
 
public void TestDicomImage() 
{ 
   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); 
 
      DicomElement pixelDataElement = ds.FindFirstElement(null, DicomTag.PixelData, true); 
      if (pixelDataElement == null) 
      { 
         Console.WriteLine("This dataset is missing the pixel data element", "Sample"); 
         return; 
      } 
 
      if (ds.GetImageCount(pixelDataElement) == 0) 
      { 
         Console.WriteLine("Sample: This dataset has no images"); 
         return; 
      } 
 
      DicomImageInformation imageInformation = ds.GetImageInformation(pixelDataElement, 0); 
      if (imageInformation == null) 
      { 
         Console.WriteLine("Sample: Can't retrieve image information"); 
         return; 
      } 
      // Over here we can access the different properties of the DicomImageInformation class to get some 
      // of the image attributes such as bits allocated (DicomImageInformation. BitsAllocated) 
      RasterImage image = ds.GetImage(pixelDataElement, 
         0, 
         0, 
         RasterByteOrder.Gray, 
         DicomGetImageFlags.AllowRangeExpansion | DicomGetImageFlags.AutoApplyModalityLut | DicomGetImageFlags.AutoApplyVoiLut); 
 
      if (image == null) 
      { 
         Console.WriteLine("Sample: Can't retrieve image"); 
         return; 
      } 
 
      //If the image has more than one frame then we can call DicomDataSet.GetImages to get all the frames 
      using (DicomDataSet ds1 = new DicomDataSet()) 
      { 
         ds1.Initialize(DicomClassType.DXImageStoragePresentation, DicomDataSetInitializeType.ExplicitVRLittleEndian); 
         DicomElement pixelDataElement1 = ds1.FindFirstElement(null, DicomTag.PixelData, true); 
         if (pixelDataElement1 != null) 
         { 
            ds1.SetImage(pixelDataElement1, 
               image, 
               DicomImageCompressionType.None, 
               DicomImagePhotometricInterpretationType.Monochrome2, 
               16, 
               2, 
               DicomSetImageFlags.AutoSetVoiLut); 
            //If we have more than one frame then we can call DicomDataSet.SetImages 
 
            //This is an alternative way to set the image, I will first delete the 
            //existing image and then call DicomDataSet.InsertImage 
            ds1.DeleteElement(pixelDataElement1); 
            pixelDataElement1 = ds1.InsertElement(null, false, DicomTag.PixelData, DicomVRType.UN, false, 0); 
            ds1.InsertImage(pixelDataElement1, 
               image, 
               0, 
               DicomImageCompressionType.None, 
               DicomImagePhotometricInterpretationType.Monochrome2, 
               16, 
               2, 
               DicomSetImageFlags.AutoSetVoiLut); 
            //If we have more than one frame then we can call DicomDataSet.InsertImages 
 
            ds1.Save(Path.Combine(LEAD_VARS.ImagesDir, "DICOM", "Test.dcm"), DicomDataSetSaveFlags.None); 
 
         } 
      } 
      //Load DICOM File 
      ds.Load(dicomFileName, DicomDataSetLoadFlags.None); 
   } 
   DicomEngine.Shutdown(); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
}

Requirements

Target Platforms

Reference

Leadtools.Dicom Namespace

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Help Version 23.0.2024.8.20

Leadtools.Dicom Assembly

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