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dcmdrle(1)			  OFFIS	DCMTK			    dcmdrle(1)

NAME
       dcmdrle - Decode	RLE-compressed DICOM file

SYNOPSIS
       dcmdrle [options] dcmfile-in dcmfile-out

DESCRIPTION
       The  dcmdrle  utility  reads a RLE-compressed DICOM image (dcmfile-in),
       decompresses the	image data (i.e. conversion to a native	DICOM transfer
       syntax) and writes the converted	image to an output file	(dcmfile-out).

PARAMETERS
       dcmfile-in   DICOM input	filename to be converted

       dcmfile-out  DICOM output filename

OPTIONS
   general options
	 -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

   input options
       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

	 # This	option allows to decompress RLE	compressed DICOM objects that have
	 # been	stored as dataset without meta-header. Such a thing should not exist
	 # since the transfer syntax cannot be reliably	determined without meta-header,
	 # but unfortunately it	does.

   processing options
       SOP Instance UID:

	 +ud  --uid-default
		keep same SOP Instance UID (default)

	 +ua  --uid-always
		always assign new UID

       RLE byte	segment	order:

	 +bd  --byte-order-default
		most significant byte first (default)

	 +br  --byte-order-reverse
		least significant byte first

	 # This	option allows to decompress RLE	compressed DICOM files in which	the
	 # order of byte segments is encoded in	incorrect order. This only affects
	 # images with more than one byte per sample.

   output options
       output file format:

	 +F   --write-file
		write file format (default)

	 -F   --write-dataset
		write data set without file meta information

       output transfer syntax:

	 +te  --write-xfer-little
		write with explicit VR little endian (default)

	 +tb  --write-xfer-big
		write with explicit VR big endian TS

	 +ti  --write-xfer-implicit
		write with implicit VR little endian TS

       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 (not with --write-dataset):

	 -p=  --padding-retain
		do not change padding (default if not --write-dataset)

	 -p   --padding-off
		no padding (implicit if	--write-dataset)

	 +p   --padding-create	[f]ile-pad [i]tem-pad: integer
		align file on multiple of f bytes
		and items on multiple of i bytes

TRANSFER SYNTAXES
       dcmdrle	supports  the  following transfer syntaxes for input (dcmfile-
       in):

       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
       RLELosslessTransferSyntax		      1.2.840.10008.1.2.5

       (*) if compiled with zlib support enabled

       dcmdrle supports	the following transfer syntaxes	for  output  (dcmfile-
       out):

       LittleEndianImplicitTransferSyntax	      1.2.840.10008.1.2
       LittleEndianExplicitTransferSyntax	      1.2.840.10008.1.2.1
       BigEndianExplicitTransferSyntax		      1.2.840.10008.1.2.2

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 --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).

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. @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  to   summarize	common
       combinations  of	 options/parameters  and  avoids longish and confusing
       command lines (an example is provided in	file _datadir_/dumppat.txt).

ENVIRONMENT
       The dcmdrle 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  behaviour	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.

SEE ALSO
       dcmcrle(1)

COPYRIGHT
       Copyright  (C)  2002-2010  by OFFIS e.V., Escherweg 2, 26121 Oldenburg,
       Germany

Version	3.6.0			  6 Jan	2011			    dcmdrle(1)

NAME | SYNOPSIS | DESCRIPTION | PARAMETERS | OPTIONS | TRANSFER SYNTAXES | LOGGING | COMMAND LINE | ENVIRONMENT | SEE ALSO | COPYRIGHT

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