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dcmgpdir - Create a general purpose DICOMDIR


dcmgpdir [options] [dcmfile-in...]


The dcmgpdir utility creates a DICOMDIR file from the specified referenced DICOM files
according to the DICOM Part 11 Media Storage Application Profiles.

Currently, the following profiles are supported:

· General Purpose CD-R Interchange (STD-GEN-CD)
· General Purpose Interchange on DVD-RAM Media (STD-GEN-DVD-RAM)
dcmmkdir is an extended version of this tool which also supports other Media Storage
Application Profiles than the general purpose one (e.g. both cardio profiles requiring the
use of icon images).


dcmfile-in referenced DICOM file (or directory to be scanned)


general options
-h --help
print this help text and exit

print version information and exit

print expanded command line arguments

-q --quiet
quiet mode, print no warnings and errors

-v --verbose
verbose mode, print processing details

-d --debug
debug mode, print debug information

-ll --log-level [l]evel: string constant
(fatal, error, warn, info, debug, trace)
use level l for the logger

-lc --log-config [f]ilename: string
use config file f for the logger
input options
DICOMDIR identifiers:

+F --fileset-id [i]d: string
use specific file-set ID
(default: DCMTK_MEDIA_DEMO, "" for none)

+R --descriptor [f]ilename: string
add a file-set descriptor file ID
(e.g. README, default: no descriptor)

+C --char-set [c]harset: string
add a specific character set for descriptor
(default: "ISO_IR 100" if descriptor present)


+id --input-directory [d]irectory: string
read referenced DICOM files from directory d
(default for --recurse: current directory)

-m --keep-filenames
expect filenames to be in DICOM format (default)

+m --map-filenames
map to DICOM filenames (lowercase->uppercase,
and remove trailing period)

-r --no-recurse
do not recurse within directories (default)

+r --recurse
recurse within filesystem directories

+p --pattern [p]attern: string (only with --recurse)
pattern for filename matching (wildcards)

# possibly not available on all systems
processing options
consistency check:

-W --no-consistency-check
do not check files for consistency

+W --warn-inconsist-files
warn about inconsistent files (default)

-a --abort-inconsist-file
abort on first inconsistent file

type 1 attributes:

-I --strict
exit with error if DICOMDIR type 1 attributes
are missing in DICOM file (default)

+I --invent
invent DICOMDIR type 1 attributes if missing in DICOM file

+Ipi --invent-patient-id
invent new PatientID in case of inconsistent
PatientName attributes

other checks:

+Nrs --allow-retired-sop
allow retired SOP classes defined in previous editions
of the DICOM standard

-Nxc --no-xfer-check
do not reject images with non-standard transfer syntax
(just warn)
output options

+D --output-file [f]ilename: string
generate specific DICOMDIR file
(default: DICOMDIR in current directory)


-A --replace
replace existing DICOMDIR (default)

+A --append
append to existing DICOMDIR

+U --update
update existing DICOMDIR

-w --discard
do not write out DICOMDIR


create a backup of existing DICOMDIR (default)

-nb --no-backup
do not create a backup of existing DICOMDIR

post-1993 value representations:

+u --enable-new-vr
enable support for new VRs (UN/UT) (default)

-u --disable-new-vr
disable support for new VRs, convert to OB

group length encoding:

-g --group-length-remove
write without group length elements (default)

+g --group-length-create
write with group length elements

length encoding in sequences and items:

+e --length-explicit
write with explicit lengths (default)

-e --length-undefined
write with undefined lengths


All files specified on the command line (or discovered by recursively examining the
contents of directories with the +r option) are first evaluated for their compatibility
with the General Purpose CD-R Image Interchange Profile (Supplement 19). Only appropriate
files encoded using the Explicit VR Little Endian Uncompressed Transfer Syntax will be
accepted. Files having invalid filenames will be rejected (the rules can be relaxed via
the +m option). Files missing required attributes will be rejected (the +I option can
relax this behavior).
A DICOMDIR file will only be constructed if all files have passed initial tests.
The dcmgpdir utility also allows one to append new entries to and to update existing
entries in a DICOMDIR file. Using option +A new entries are only appended to the DICOMDIR,
i.e. existing records like the ones for PATIENT information are not updated. Using option
+U also existing records are updated according to the information found in the referenced
DICOM files. Please note that this update process might be slower than just appending new
entries. However, it makes sure that additional information that is required for the
selected application profile is also added to existing records.
Scanning Directories
Adding files from directories is possible by using option --recurse. If no further command
line parameters are given, the directory specified by option --input-directory (default:
current directory) is scanned for files. If parameters are given, they can either specify
a file or directory name; the input directory is always prepended. If the files in the
provided directories should be selected according to a specific name pattern (e.g. using
wildcard matching), option --pattern has to be used. Please note that this file pattern
only applies to the files within the scanned directories, and, if any other patterns are
specified on the command line outside the --input-directory option (e.g. in order to
select further files), these do not apply to the specified directories.


The level of logging output of the various command line tools and underlying libraries can
be specified by the user. By default, only errors and warnings are written to the standard
error stream. Using option --verbose also informational messages like processing details
are reported. Option --debug can be used to get more details on the internal activity,
e.g. for debugging purposes. Other logging levels can be selected using option --log-
level. In --quiet mode only fatal errors are reported. In such very severe error events,
the application will usually terminate. For more details on the different logging levels,
see documentation of module 'oflog'.
In case the logging output should be written to file (optionally with logfile rotation),
to syslog (Unix) or the event log (Windows) option --log-config can be used. This
configuration file also allows for directing only certain messages to a particular output
stream and for filtering certain messages based on the module or application where they
are generated. An example configuration file is provided in <etcdir>/logger.cfg.


All command line tools use the following notation for parameters: square brackets enclose
optional values (0-1), three trailing dots indicate that multiple values are allowed
(1-n), a combination of both means 0 to n values.
Command line options are distinguished from parameters by a leading '+' or '-' sign,
respectively. Usually, order and position of command line options are arbitrary (i.e. they
can appear anywhere). However, if options are mutually exclusive the rightmost appearance
is used. This behavior conforms to the standard evaluation rules of common Unix shells.
In addition, one or more command files can be specified using an '@' sign as a prefix to
the filename (e.g. @command.txt). Such a command argument is replaced by the content of
the corresponding text file (multiple whitespaces are treated as a single separator unless
they appear between two quotation marks) prior to any further evaluation. Please note that
a command file cannot contain another command file. This simple but effective approach
allows one to summarize common combinations of options/parameters and avoids longish and
confusing command lines (an example is provided in file <datadir>/dumppat.txt).


The dcmgpdir utility will attempt to load DICOM data dictionaries specified in the
DCMDICTPATH environment variable. By default, i.e. if the DCMDICTPATH environment variable
is not set, the file <datadir>/dicom.dic will be loaded unless the dictionary is built
into the application (default for Windows).
The default behavior should be preferred and the DCMDICTPATH environment variable only
used when alternative data dictionaries are required. The DCMDICTPATH environment variable
has the same format as the Unix shell PATH variable in that a colon (':') separates
entries. On Windows systems, a semicolon (';') is used as a separator. The data dictionary
code will attempt to load each file specified in the DCMDICTPATH environment variable. It
is an error if no data dictionary can be loaded.

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