private static unsafe void CreateImagePixelModuleRasterRgb(IDicomAttributeProvider target, IPresentationImage sourceImage)
{
target[DicomTags.SamplesPerPixel].SetInt32(0, 3);
target[DicomTags.PhotometricInterpretation].SetStringValue(PhotometricInterpretation.Rgb.Code);
target[DicomTags.Rows].SetInt32(0, sourceImage.ClientRectangle.Height);
target[DicomTags.Columns].SetInt32(0, sourceImage.ClientRectangle.Width);
target[DicomTags.BitsAllocated].SetInt32(0, 8);
target[DicomTags.BitsStored].SetInt32(0, 8);
target[DicomTags.HighBit].SetInt32(0, 7);
target[DicomTags.PixelRepresentation].SetInt32(0, 0);
target[DicomTags.PlanarConfiguration].SetInt32(0, 0);
target[DicomTags.PixelAspectRatio].SetStringValue(@"1\1");
using (var helper = new RenderImageHelper(sourceImage))
{
// because we effectively "flattened" the image here, any header information regarding orientation, position and pixel spacing is now invalid
// (cause they just got baked into the pixel data)
target[DicomTags.ImageOrientationPatient].SetStringValue2(helper.GetImageOrientationPatient());
target[DicomTags.ImagePositionPatient].SetStringValue2(helper.GetImagePositionPatient());
target[DicomTags.PixelSpacing].SetStringValue2(helper.GetPixelSpacing());
var pixelDataAttribute = (DicomAttributeBinary)target[DicomTags.PixelData];
using (var stream = pixelDataAttribute.AsStream())
using (var bitmap = helper.Image.RenderImage(sourceImage.ClientRectangle))
{
stream.Seek(0, SeekOrigin.Begin);
var pixelCount = bitmap.Width * bitmap.Height;
var rgbLength = pixelCount * 3;
var pPixelData = Marshal.AllocHGlobal(pixelCount * 4);
try
{
bitmap.CopyArgbDataTo(pPixelData);
var pValue = (int *)pPixelData;
for (var n = 0; n < pixelCount; ++n)
{
var value = *pValue++; // endianess concerns (i.e. ARGB vs BGRA) eliminated by reading as int
stream.WriteByte((byte)(value >> 16)); // R
stream.WriteByte((byte)(value >> 8)); // G
stream.WriteByte((byte)(value)); // B
}
}
finally
{
Marshal.FreeHGlobal(pPixelData);
}
if (rgbLength % 2 != 0)
{
++rgbLength;
stream.WriteByte(0);
}
stream.SetLength(rgbLength);
}
}
}
private static unsafe void CreateImagePixelModuleRasterRgb(IDicomAttributeProvider target, IPresentationImage sourceImage)
{
target[DicomTags.SamplesPerPixel].SetInt32(0, 3);
target[DicomTags.PhotometricInterpretation].SetStringValue(PhotometricInterpretation.Rgb.Code);
target[DicomTags.Rows].SetInt32(0, sourceImage.ClientRectangle.Height);
target[DicomTags.Columns].SetInt32(0, sourceImage.ClientRectangle.Width);
target[DicomTags.BitsAllocated].SetInt32(0, 8);
target[DicomTags.BitsStored].SetInt32(0, 8);
target[DicomTags.HighBit].SetInt32(0, 7);
target[DicomTags.PixelRepresentation].SetInt32(0, 0);
target[DicomTags.PlanarConfiguration].SetInt32(0, 0);
target[DicomTags.PixelAspectRatio].SetStringValue(@"1\1");
using (var helper = new RenderImageHelper(sourceImage))
{
// because we effectively "flattened" the image here, any header information regarding orientation, position and pixel spacing is now invalid
// (cause they just got baked into the pixel data)
target[DicomTags.ImageOrientationPatient].SetStringValue2(helper.GetImageOrientationPatient());
target[DicomTags.ImagePositionPatient].SetStringValue2(helper.GetImagePositionPatient());
target[DicomTags.PixelSpacing].SetStringValue2(helper.GetPixelSpacing());
var pixelDataAttribute = (DicomAttributeBinary) target[DicomTags.PixelData];
using (var stream = pixelDataAttribute.AsStream())
using (var bitmap = helper.Image.RenderImage(sourceImage.ClientRectangle))
{
stream.Seek(0, SeekOrigin.Begin);
var pixelCount = bitmap.Width*bitmap.Height;
var rgbLength = pixelCount*3;
var pPixelData = Marshal.AllocHGlobal(pixelCount*4);
try
{
bitmap.CopyArgbDataTo(pPixelData);
var pValue = (int*) pPixelData;
for (var n = 0; n < pixelCount; ++n)
{
var value = *pValue++; // endianess concerns (i.e. ARGB vs BGRA) eliminated by reading as int
stream.WriteByte((byte) (value >> 16)); // R
stream.WriteByte((byte) (value >> 8)); // G
stream.WriteByte((byte) (value)); // B
}
}
finally
{
Marshal.FreeHGlobal(pPixelData);
}
if (rgbLength%2 != 0)
{
++rgbLength;
stream.WriteByte(0);
}
stream.SetLength(rgbLength);
}
}
}
