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/*!
\if MANPAGES
\page dcmcrle Encode DICOM file to RLE transfer syntax
\else
\page dcmcrle dcmcrle: Encode DICOM file to RLE transfer syntax
\endif
\section synopsis SYNOPSIS
\verbatim
dcmcrle [options] dcmfile-in dcmfile-out
\endverbatim
\section description DESCRIPTION
The \b dcmcrle utility reads an uncompressed DICOM image (\e dcmfile-in),
performs RLE compression (i.e. conversion to an encapsulated DICOM transfer
syntax) and writes the converted image to an output file (\e dcmfile-out).
\section parameters PARAMETERS
\verbatim
dcmfile-in DICOM input filename to be converted
dcmfile-out DICOM output filename
\endverbatim
\section options OPTIONS
\subsection general_options general options
\verbatim
-h --help
print this help text and exit
--version
print version information and exit
--arguments
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
\endverbatim
\subsection input_options input options
\verbatim
input file format:
+f --read-file
read file format or data set (default)
+fo --read-file-only
read file format only
-f --read-dataset
read data set without file meta information
input transfer syntax:
-t= --read-xfer-auto
use TS recognition (default)
-td --read-xfer-detect
ignore TS specified in the file meta header
-te --read-xfer-little
read with explicit VR little endian TS
-tb --read-xfer-big
read with explicit VR big endian TS
-ti --read-xfer-implicit
read with implicit VR little endian TS
\endverbatim
\subsection enc_pix_data_encoding_opt encapsulated pixel data encoding options
\verbatim
pixel data fragmentation:
+ff --fragment-per-frame
encode each frame as one fragment (default)
+fs --fragment-size [s]ize: integer
limit fragment size to s kbytes (non-standard)
basic offset table encoding:
+ot --offset-table-create
create offset table (default)
-ot --offset-table-empty
leave offset table empty
SOP Class UID:
+cd --class-default
keep SOP Class UID (default)
+cs --class-sc
convert to Secondary Capture Image (implies --uid-always)
SOP Instance UID:
+un --uid-never
never assign new UID (default)
+ua --uid-always
always assign new UID
\endverbatim
\subsection output_options output options
\verbatim
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-recalc
recalculate group lengths if present (default)
+g --group-length-create
always write with group length elements
-g --group-length-remove
always write without group length elements
length encoding in sequences and items:
+e --length-explicit
write with explicit lengths (default)
-e --length-undefined
write with undefined lengths
data set trailing padding:
-p= --padding-retain
do not change padding (default)
-p --padding-off
no padding
+p --padding-create [f]ile-pad [i]tem-pad: integer
align file on multiple of f bytes
and items on multiple of i bytes
\endverbatim
\section transfer_syntaxes TRANSFER SYNTAXES
\b dcmcrle supports the following transfer syntaxes for input
(\e dcmfile-in):
\verbatim
LittleEndianImplicitTransferSyntax 1.2.840.10008.1.2
LittleEndianExplicitTransferSyntax 1.2.840.10008.1.2.1
DeflatedExplicitVRLittleEndianTransferSyntax 1.2.840.10008.1.2.1.99 (*)
BigEndianExplicitTransferSyntax 1.2.840.10008.1.2.2
\endverbatim
(*) if compiled with zlib support enabled
\b dcmcrle supports the following transfer syntaxes for output
(\e dcmfile-out):
\verbatim
RLELosslessTransferSyntax 1.2.840.10008.1.2.5
\endverbatim
\section logging LOGGING
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 \e --verbose also
informational messages like processing details are reported. Option
\e --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
\e --log-level. In \e --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 \e --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 <em>\<etcdir\>/logger.cfg</em>).
\section command_line COMMAND LINE
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 behaviour 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. <em>\@command.txt</em>). 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 to summarize common combinations of options/parameters and avoids
longish and confusing command lines (an example is provided in file
<em>\<datadir\>/dumppat.txt</em>).
\section environment ENVIRONMENT
The \b dcmcrle utility will attempt to load DICOM data dictionaries specified
in the \e DCMDICTPATH environment variable. By default, i.e. if the
\e DCMDICTPATH environment variable is not set, the file
<em>\<datadir\>/dicom.dic</em> will be loaded unless the dictionary is built
into the application (default for Windows).
The default behaviour should be preferred and the \e DCMDICTPATH environment
variable only used when alternative data dictionaries are required. The
\e DCMDICTPATH environment variable has the same format as the Unix shell
\e 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 \e DCMDICTPATH environment variable.
It is an error if no data dictionary can be loaded.
\section see_also SEE ALSO
<b>dcmdrle</b>(1)
\section copyright COPYRIGHT
Copyright (C) 2002-2010 by OFFIS e.V., Escherweg 2, 26121 Oldenburg, Germany.
*/
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