public static int Main(string[] args)
{
string file1 = args[0];
System.IO.FileStream infile =
new System.IO.FileStream(file1, System.IO.FileMode.Open, System.IO.FileAccess.Read);
uint fsize = gdcm.PosixEmulation.FileSize(file1);
byte[] jstream = new byte[fsize];
infile.Read(jstream, 0, jstream.Length);
Trace.DebugOn();
Image image = new Image();
image.SetNumberOfDimensions(2); // important for now
DataElement pixeldata = new DataElement(new gdcm.Tag(0x7fe0, 0x0010));
// DO NOT set a ByteValue here, JPEG is a particular kind of encapsulated syntax
// in which can one cannot use a simple byte array for storage. Instead, see
// gdcm.SequenceOfFragments
//pixeldata.SetByteValue( jstream, new gdcm.VL( (uint)jstream.Length ) );
// Create a new SequenceOfFragments C++ object, store it as a SmartPointer :
SmartPtrFrag sq = SequenceOfFragments.New();
Fragment frag = new Fragment();
frag.SetByteValue(jstream, new gdcm.VL((uint)jstream.Length));
// Single file => single fragment
sq.AddFragment(frag);
// Pass by reference:
pixeldata.SetValue(sq.__ref__());
// insert:
image.SetDataElement(pixeldata);
// JPEG use YBR to achieve better compression ratio by default (not RGB)
// FIXME hardcoded:
PhotometricInterpretation pi = new PhotometricInterpretation(PhotometricInterpretation.PIType.YBR_FULL);
image.SetPhotometricInterpretation(pi);
// FIXME hardcoded:
PixelFormat pixeltype = new PixelFormat(3, 8, 8, 7);
image.SetPixelFormat(pixeltype);
// FIXME hardcoded:
image.SetTransferSyntax(new TransferSyntax(TransferSyntax.TSType.JPEGLosslessProcess14_1));
image.SetDimension(0, 692);
image.SetDimension(1, 721);
// Decompress !
byte[] decompressedData = new byte[(int)image.GetBufferLength()];
image.GetBuffer(decompressedData);
// Write out the decompressed bytes
System.Console.WriteLine(image.toString());
using (System.IO.Stream stream =
System.IO.File.Open(@"/tmp/dd.raw",
System.IO.FileMode.Create))
{
System.IO.BinaryWriter writer = new System.IO.BinaryWriter(stream);
writer.Write(decompressedData);
}
return(0);
}
