X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=blobdiff_plain;f=Doc%2FWebsite%2FConformanceSummary.html;h=90b9c31018dcabfac645e1c2fa0e283f2e6b9999;hb=f540ed5835e7b89478e6048a577d494c0e156f2a;hp=b3d26184c707a775e090a525074c082905febb69;hpb=6dbc93b31a2dd7145a9e3f887cf423cccaed262c;p=gdcm.git diff --git a/Doc/Website/ConformanceSummary.html b/Doc/Website/ConformanceSummary.html index b3d26184..90b9c310 100644 --- a/Doc/Website/ConformanceSummary.html +++ b/Doc/Website/ConformanceSummary.html @@ -25,8 +25,8 @@ Gdcm does not contain or support any of the DICOM services such as Storage, Query/Retrieve, Print, Verification... -

Supported transfer syntaxes

-The Transfer Syntax UID is in the file's DICOM Tag field (0002,0010). +

Supported transfer syntaxes (Reading)

+The Transfer Syntax UID is in the file DICOM Tag field (0002,0010). @@ -92,7 +92,27 @@ The Transfer Syntax UID is in the file's DICOM Tag field (0002,0010).
-

Supported "Photometric Interpretation" pixel format

+

Supported transfer syntaxes (Writing)

+The Transfer Syntax UID is in the file DICOM Tag field (0002,0010). + + + + + + + + + + + + + + + +
Uncompressed Transfer Syntax Description
1.2.840.10008.1.2 Implicit VR - Little Endian
1.2.840.10008.1.2.1 Explicit VR - Little Endian
+ +

Supported "Photometric Interpretation" pixel format (Reading)

The Photometric Interpretation UID is in the file DICOM Tag field (0028,0004). - + - + @@ -127,6 +147,65 @@ The Photometric Interpretation UID is in the file DICOM Tag field (0028,0004).
MONOCHROME1 grey level image description grey level image description (high values=dark, low values=bright)
MONOCHROME2 grey level image description grey level image description (high values=bright, low values=dark)
PALETTE COLOR
+ + +

Supported "Photometric Interpretation" pixel format (Writing)

+The Photometric Interpretation UID is in the file DICOM Tag field (0028,0004). + + + + + + + + + + + + + + + + + + + +
Photometric Interpretation" pixel format Description
MONOCHROME2 grey level image description (high values=bright, low values=dark)
PALETTE COLOR pseudo color image description
RGB true color image description
+ + + +

Supported 'Bits Allocated' values (Reading)

+The Bits Allocated value is in the file DICOM Tag field (0020,0100). + + + + + + + + + + + + + + + + + + + + + + +
Classical values Description
8, 12, 16 12 means that 4 pixels are stored in 3 'short int'
Unusual values Description
24 Some ACR-NEMA RGB files came with 'Bits Allocated' = 24 + and 'Samples Per Pixel' = 1, or with no 'Samples Per Pixel' + at all
32 Some ACR-NEMA files, from CT, came with 'Bits Allocated' = 32 + (probabely 65535 grey levels was not enough for them ...) +
+

Note on odd length data elements

@@ -153,7 +232,8 @@ element's VR to be UN (unknown). Each time it's possible to assume a 'reasonable' default value for missing 'mandatory' tag, gdcm does it.
For instance if the Tag 'Samples Per Pixels' is missing, we assume its value is -'1' (Grey pixels, as opposite to RGB);
if the tag 'High Bit' is missing, we +'1' (Grey pixels, as opposite to RGB);
+if the tag 'High Bit' is missing, we assume its value is 'Bits stored -1' (i.e. : no bad trick inside the pixels)
As gdcm wants to read *as well* old ACR-NEMA files, it has to be widely tolerant. @@ -168,18 +248,18 @@ the mandatory two, gdcm will suppose both values are equal. -

Note on retired and private data elements

+

Note on retired data elements

Certain data elements are no longer supported under the v3.0 of the DICOM -standard but persist as retired element. Gdcm will consider those -elements as standard data element, except that the tag name will be postfixed -with the "(RET)" string. +standard but persist as retired element. Gdcm maintain them in its Dicom +Dictionary, postfix their names with the "(RET)" string, and goes on dealing +with them as standard data elements.

UNSupported transfer syntaxes

-The Transfer Syntax UID is in the file's DICOM Tag field (0002,0010). +The Transfer Syntax UID is in the file DICOM Tag field (0002,0010).