- NewElVal->SetValue("0");
-
-
- NewElVal = NewManualElValToPubDict("gdcmZSize", "US");
- if (!NewElVal) return;
- NewVal = GetElValByNumber(0x0028,0x0008); // 0028 0008 IS IMG Number of Frames (DICOM)
- if (NewVal == "gdcm::Unfound") {
- NewVal = GetElValByNumber(0x0028,0x0012); // 028 0012 US IMG Planes (ACR-NEMA)
- if (NewVal == "gdcm::Unfound") { // Warning !!! : 6000 0012 US OLY Planes
- NewElVal->SetValue("0");
- } else {
- NewElVal->SetValue(NewVal);
- }
- } else {
- NewElVal->SetValue(NewVal);
- } // length is still wrong
-} // do we care about it?
+ // The Rows (0028,0010) entry is optional for ACR/NEMA. It might
+ // hence be a signal (1d image). So we default to 1:
+ return 1;
+}
+
+/**
+ * \ingroup gdcmHeader
+ * \brief Retrieve the number of planes of volume or the number
+ * of frames of a multiframe.
+ * \warning When present we consider the "Number of Frames" as the third
+ * dimension. When absent we consider the third dimension as
+ * being the "Planes" tag content.
+ * @return The encountered size when found, 1 by default.
+ */
+int gdcmHeader::GetZSize(void) {
+ // Both in DicomV3 and ACR/Nema the consider the "Number of Frames"
+ // as the third dimension.
+ string StrSize = GetPubElValByNumber(0x0028,0x0008);
+ if (StrSize != "gdcm::Unfound")
+ return atoi(StrSize.c_str());
+
+ // We then consider the "Planes" entry as the third dimension [we
+ // cannot retrieve by name since "Planes tag is present both in
+ // IMG (0028,0012) and OLY (6000,0012) sections of the dictionary].
+ StrSize = GetPubElValByNumber(0x0028,0x0012);
+ if (StrSize != "gdcm::Unfound")
+ return atoi(StrSize.c_str());
+ return 1;
+}
+
+/**
+ * \ingroup gdcmHeader
+ * \brief Return the size (in bytes) of a single pixel of data.
+ * @return The size in bytes of a single pixel of data.
+ *
+ */
+int gdcmHeader::GetPixelSize(void) {
+ string PixelType = GetPixelType();
+ if (PixelType == "8U" || PixelType == "8S")
+ return 1;
+ if (PixelType == "16U" || PixelType == "16S")
+ return 2;
+ if (PixelType == "32U" || PixelType == "32S")
+ return 4;
+ dbg.Verbose(0, "gdcmHeader::GetPixelSize: Unknown pixel type");
+ return 0;
+}
+
+/**
+ * \ingroup gdcmHeader
+ * \brief Build the Pixel Type of the image.
+ * Possible values are:
+ * - 8U unsigned 8 bit,
+ * - 8S signed 8 bit,
+ * - 16U unsigned 16 bit,
+ * - 16S signed 16 bit,
+ * - 32U unsigned 32 bit,
+ * - 32S signed 32 bit,
+ * \warning 12 bit images appear as 16 bit.
+ * @return
+ */
+string gdcmHeader::GetPixelType(void) {
+ string BitsAlloc;
+ BitsAlloc = GetElValByName("Bits Allocated");
+ if (BitsAlloc == "gdcm::Unfound") {
+ dbg.Verbose(0, "gdcmHeader::GetPixelType: unfound Bits Allocated");
+ BitsAlloc = string("16");
+ }
+ if (BitsAlloc == "12")
+ BitsAlloc = string("16");
+
+ string Signed;
+ Signed = GetElValByName("Pixel Representation");
+ if (Signed == "gdcm::Unfound") {
+ dbg.Verbose(0, "gdcmHeader::GetPixelType: unfound Pixel Representation");
+ BitsAlloc = string("0");
+ }
+ if (Signed == "0")
+ Signed = string("U");
+ else
+ Signed = string("S");