/// <summary>
/// Set data indicated Dicom Tag and Element read from FileStream
/// </summary>
/// <param name="fs">target dcm file FileStream</param>
/// <param name="count">reference for FileStream position</param>
/// <param name="tagele_obj">reference for TagElementObjectData parameter</param>
private void SetDataContainer(FileStream fs, ref Int64 count, ref TagElementObjectData tagele_obj)
{
Int64 i = count;
byte[] vr = new byte[2];
byte[] len = new byte[2];
byte[] blanc = new byte[2];
fs.Read(vr, 0, 2);
fs.Read(len, 0, 2);
i += 4;
int size = ToInt32_LittleEndian(len);
if (0 == size)
{
fs.Read(len, 0, 2);
fs.Read(blanc, 0, 2);
i += 4;
if (blanc[0] == 0x00 && blanc[1] == 0x00)
{
size = ToInt32_LittleEndian(len);
}
else
{
fs.Position -= 4;
return;
}
}
byte[] data = new byte[size];
fs.Read(data, 0, size);
i += size;
count = i;
tagele_obj.vr = vr;
tagele_obj.length = len;
tagele_obj.value = data;
}
/// <summary>
/// Set pixcel data chunk '7FE0,0010' from target opened dcm FileStream.
/// </summary>
/// <param name="fs">target dcm file FileStream</param>
/// <param name="start">start point of '7FEO,0010' chunk</param>
/// <param name="end">end point of '7FEO,0010' chunk</param>
/// <param name="count">reference for FileStream position</param>
/// <param name="tagele_obj">reference for TagElementObjectData parameter</param>
private void SetPixcelsDataContainer(FileStream fs, int start, int end, ref long count, ref TagElementObjectData tagele_obj)
{
byte[] vr = new byte[2];
byte[] len = new byte[2];
fs.Read(vr, 0, 2);
fs.Read(len, 0, 2);
count += 2;
int size = end - start;
byte[] data = new byte[size];
fs.Read(data, 0, size);
count += size;
tagele_obj.vr = vr;
tagele_obj.length = len;
tagele_obj.value = data;
}
private void ExecuteCommnadDisplayAndParsing()
{
ConvertJpegToDICOMFile(iFilename, intermediateFile);
iFilename = intermediateFile;
whitebalance = 0;
int tag_h = 0;
int tag_l = 0;
int ele_h = 0;
int ele_l = 0;
var fi = new FileInfo(iFilename);
var fileLength = fi.Length;
Int64 fi_count = 0;
int i = 0;
List <string> TagEle = new List <string>();
dataGridView1.DoubleClick += DataGridView1_DoubleClick;
pictureBox1.MouseWheel += PictureBox1_MouseWheel;
using (var fs = new FileStream(iFilename, FileMode.Open))
{
fs.Position = 132;
fi_count = 132;
while (fi_count < fileLength)
{
var tag_element_name = ParseTagElementContainer(fs, ref fi_count);
TagEle.Add(tag_element_name);
}
}
fi_count = 0;
using (var fs = new FileStream(iFilename, FileMode.Open))
{
fs.Position = 132;
fi_count = 132;
while (fi_count < fileLength)
{
GetTagElementByte(TagEle[i], out tag_h, out tag_l, out ele_h, out ele_l);
var read_tag_h = fs.ReadByte();
var read_tag_l = fs.ReadByte();
fi_count += 2;
if (read_tag_h == tag_h && read_tag_l == tag_l)
{
var read_ele_h = fs.ReadByte();
var read_ele_l = fs.ReadByte();
fi_count += 2;
if (read_ele_h == ele_h && read_ele_l == ele_l)
{
TagElementObjectData obj = new TagElementObjectData();
obj.tag = new byte[] { (byte)tag_h, (byte)tag_l };
obj.element = new byte[] { (byte)ele_h, (byte)ele_l };
if ("7FE0,0010" == TagEle[i])
{
long start = fs.Position - 4;
SetPixcelsDataContainer(fs, (int)start, (int)fileLength, ref fi_count, ref obj);
obj_data = obj;
bitmap = CreateBitmap(obj.value, width, height, window_center, window_width);
DrawPictureBox(obj.value, width, height, window_center, window_width);
}
else
{
SetDataContainer(fs, ref fi_count, ref obj);
tagele_obj.Add(obj);
if ("0028,0010" == TagEle[i])
{
width = GetWidthFrom00280010(obj);
}
if ("0028,0011" == TagEle[i])
{
height = GetHeightFrom00280011(obj);
}
if ("0028,1050" == TagEle[i])
{
window_center = double.Parse(Encoding.UTF8.GetString(obj.value));
}
if ("0028,1051" == TagEle[i])
{
window_width = double.Parse(Encoding.UTF8.GetString(obj.value));
}
}
i++;
}
}
}
}
ShowTagElementData(tagele_obj);
DisplayPictureboxImageData();
File.Delete(intermediateFile);
}
private int GetHeightFrom00280011(TagElementObjectData obj)
{
return(ToInt32_LittleEndian(obj.value));
}
/// <summary>
/// It gets Planar configuration parameters 1 or 0
/// </summary>
/// <param name="obj"></param>
/// <returns></returns>
private int GetPlanarConfiguration(TagElementObjectData obj)
{
return(ToInt32_LittleEndian(obj.value));
}
/// <summary>
/// It gets Photometoric parameter like RGB or MONOCHROME2.
/// </summary>
/// <param name="obj"></param>
/// <returns></returns>
string GetPhotometoricInterpretation(TagElementObjectData obj)
{
return(Encoding.ASCII.GetString(obj.value));
}
