public static void RoundTripAndRender()
{
foreach (FileInfo fi in new DirectoryInfo("..\\CompressionSamples").GetFiles("*.dcm"))
{
Console.WriteLine("Compression Test -- Filename: " + fi.Name);
DICOMData data = new DICOMData();
data.ParseFile(fi.FullName, true, new NullLogger());
TransferSyntax syntax = data.TransferSyntax;
int compressedLength = (int)data[DICOMTags.PixelData].GetDataLength(false);
data.Uncompress();
Image testImage = DICOMQuickRenderer.QuickRender(data, 0);
Assert.IsNotNull(testImage);
int uncompressedLength = (int)data[DICOMTags.PixelData].GetDataLength(false);
Assert.IsTrue(uncompressedLength > compressedLength);
if (CompressionWorker.SupportsCompression(syntax.Compression))
{
data.ChangeTransferSyntax(syntax);
int recompressedLength = (int)data[DICOMTags.PixelData].GetDataLength(false);
Assert.IsTrue(recompressedLength < uncompressedLength);
}
//data.WriteFile(fi.FullName.Replace(".dcm", "_un.dcm"));
}
}
static void TestThumbnails()
{
foreach (FileInfo fi in new DirectoryInfo("..\\CompressionSamples").GetFiles("*.dcm"))
//foreach (FileInfo fi in new DirectoryInfo("..\\CompressionSamples").GetFiles("JPEG-LS Lossless.dcm"))
{
Console.WriteLine("Compression Test -- Filename: " + fi.Name);
DICOMData data = new DICOMData();
data.ParseFile(fi.FullName, true, new NullLogger());
//data.Uncompress();
//data.WriteFile(fi.FullName.Replace(".dcm", "_un.dcm"));
Image testImage = DICOMQuickRenderer.QuickRender(data, 0);
testImage.Save(fi.FullName.Replace(".dcm", ".png"), ImageFormat.Png);
}
}
