Mercurial > hg > orthanc-book
changeset 1148:d7682d029efc
documentation of JPEG encapsulation
author | Sebastien Jodogne <s.jodogne@gmail.com> |
---|---|
date | Mon, 07 Apr 2025 08:54:21 +0200 (5 weeks ago) |
parents | 5875ab184744 |
children | a23a5e08f3b4 |
files | Sphinx/source/users/advanced-rest.rst |
diffstat | 1 files changed, 29 insertions(+), 0 deletions(-) [+] |
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--- a/Sphinx/source/users/advanced-rest.rst Fri Apr 04 15:14:35 2025 +0200 +++ b/Sphinx/source/users/advanced-rest.rst Mon Apr 07 08:54:21 2025 +0200 @@ -313,6 +313,35 @@ file. +.. _encapsulating-jpeg: + +Encapsulating a JPEG file into a DICOM instance +----------------------------------------------- + +Starting with Orthanc 1.12.7, the ``/tools/create-dicom`` route can be +used to embed a JPEG into a DICOM instance, by setting the argument +``Encapsulate`` to ``true``. In this case, the JPEG binary content is +store as-is, without transcoding. The original JPEG file can be +retrieved in the pixel data. A `sample Python script +<https://orthanc.uclouvain.be/hg/orthanc/file/default/OrthancServer/Resources/Samples/Python/EncapsulateJPEG.py>`__ +is part of the Orthanc source distribution. Here is a sample +interactive bash session: + +.. code-block:: txt + + $ md5sum /tmp/sample.jpg + bbca3961c4587063342a4e90aaff44b6 /tmp/sample.jpg + $ ./EncapsulateJPEG.py + URL of the newly created instance: http://localhost:8042/instances/1aa8b0f3-841cea86-1b1ce24c-032f1b4c-65f5cc2b/file + $ curl http://localhost:8042/instances/1aa8b0f3-841cea86-1b1ce24c-032f1b4c-65f5cc2b/content/7fe0-0010/1 > /tmp/sample2.jpg + $ md5sum /tmp/sample2.jpg + bbca3961c4587063342a4e90aaff44b6 /tmp/sample2.jpg + +Note that we use the route ``/instances/{...}/content/7fe0-0010/1`` to +retrieve the second component of the compressed pixel data, as the +first component corresponds to the offset table. + + .. _private-tags: Creating DICOM instance with private tags