C#
Objective-C
C++/CLI
Java
public enum DicomImageCompressionType
typedef NS_ENUM(NSInteger, LTDicomImageCompressionType) {
LTDicomImageCompressionTypeNone,
LTDicomImageCompressionTypeRle,
LTDicomImageCompressionTypeJpegLossless,
LTDicomImageCompressionTypeJpegLossy,
LTDicomImageCompressionTypeJpegLsLossless,
LTDicomImageCompressionTypeJpegLsLossy,
LTDicomImageCompressionTypeJ2kLossless,
LTDicomImageCompressionTypeJ2kLossy,
LTDicomImageCompressionTypeMpeg2,
LTDicomImageCompressionTypeMpeg2Hd,
LTDicomImageCompressionTypeH265,
LTDicomImageCompressionTypeUnknown,
LTDicomImageCompressionTypeJpxLossless,
LTDicomImageCompressionTypeJpxLossy,
};
public enum DicomImageCompressionType
public enum class DicomImageCompressionType
Value | Member | Description |
---|---|---|
0 | None | No compression. |
1 | Rle | RLE compression. |
2 | JpegLossless | JPEG lossLess compression. |
3 | JpegLossy | JPEG lossy compression. |
4 | JpegLsLossless | JPEG-LS lossLess. |
5 | JpegLsLossy | JPEG-LS lossy. |
6 | J2kLossless | JPEG 2000 lossless compression. |
7 | J2kLossy | JPEG 2000 lossy compression. |
8 | Mpeg2 | MPEG2 video compression. Internally used to read/write DICOM files with the LEADTOOLS Medical Module. For more information on these filters, refer to LEAD DICOM Reader and LEAD DICOM Writer. |
9 | Mpeg2Hd | MPEG2 HD video compression. Internally used to read/write DICOM files with the LEADTOOLS Medical Module. For more information on these filters, refer to LEAD DICOM Reader and LEAD DICOM Writer. |
10 | H265 | H265 |
11 | Unknown | Unknown compression. |
12 | JpxLossless | JPEG 2000 Part 2 lossless compression. |
13 | JpxLossy | JPEG 2000 Part 2 lossy compression. |
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";
}
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