gnu: Add dcmtk.

* gnu/packages/image-processing.scm: New file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.

Co-authored-by: Ricardo Wurmus <rekado@elephly.net>

gnu/local.mk

@@ -194,6 +194,7 @@ GNU_SYSTEM_MODULES =				\
   %D%/packages/idris.scm			\
   %D%/packages/idutils.scm			\
   %D%/packages/image.scm			\
+  %D%/packages/image-processing.scm	\
   %D%/packages/image-viewers.scm	\
   %D%/packages/imagemagick.scm			\
   %D%/packages/indent.scm			\

gnu/packages/image-processing.scm

@@ -0,0 +1,65 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2017 John Darrington <jmd@gnu.org>
+;;; Copyright © 2017 Ricardo Wurmus <rekado@elephly.net>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (gnu packages image-processing)
+  #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (guix packages)
+  #:use-module (guix utils)
+  #:use-module (guix download)
+  #:use-module (guix build-system gnu)
+  #:use-module (gnu packages)
+  #:use-module (gnu packages compression)
+  #:use-module (gnu packages documentation)
+  #:use-module (gnu packages image)
+  #:use-module (gnu packages perl))
+
+;; We use the latest snapshot of this package because the latest release is
+;; from 2011 and has known vulnerabilities that cannot easily be fixed by
+;; applying patches.
+(define-public dcmtk
+  (package
+    (name "dcmtk")
+    (version "3.6.1_20170228")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "ftp://dicom.offis.de/pub/dicom/offis/"
+                                  "software/dcmtk/snapshot/dcmtk-"
+                                  version ".tar.gz"))
+              (sha256
+               (base32
+                "04cwfx8yrscqcd59mxk2fh6314ckayi9cp68iql5a57pf2pg5qld"))))
+    (build-system gnu-build-system)
+    (inputs
+     `(("libtiff" ,libtiff)
+       ("libpng" ,libpng)
+       ("doxygen" ,doxygen)
+       ("zlib" ,zlib)))
+    (native-inputs
+     `(("perl" ,perl)))
+    (home-page "http://dcmtk.org")
+    (synopsis "Libraries and programs implementing parts of the DICOM standard")
+    (description "DCMTK is a collection of libraries and applications
+implementing large parts the DICOM standard.  It includes software for
+examining, constructing and converting DICOM image files, handling offline
+media, sending and receiving images over a network connection, as well as
+demonstrative image storage and worklist servers.")
+    (license (license:fsf-free
+              "file://COPYRIGHT"
+              "A union of the Apache 2.0 licence and various non-copyleft
+licences similar to the Modified BSD licence."))))