Provided by: dcmtk_3.6.7-6_amd64 bug


       dcm2pnm - Convert DICOM images to PGM/PPM, PNG, TIFF or BMP


       dcm2pnm [options] dcmfile-in [bitmap-out]


       The dcm2pnm utility reads a DICOM image, converts the pixel data according to the selected
       image processing options and writes back an image in the well-known PGM/PPM (portable gray
       map  /  portable  pix  map),  PNG,  TIFF or Windows BMP format. This utility only supports
       uncompressed and RLE compressed DICOM images. The command line tool dcmj2pnm also supports
       a number of JPEG compression schemes.


       dcmfile-in  DICOM input filename to be converted

       bitmap-out  output filename to be written (default: stdout)


   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
       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

   image processing options
       frame selection:

         +F    --frame  [n]umber: integer
                 select specified frame (default: 1)

         +Fr   --frame-range  [n]umber [c]ount: integer
                 select c frames beginning with frame n

         +Fa   --all-frames
                 select all frames


         +Rl   --rotate-left
                 rotate image left (-90 degrees)

         +Rr   --rotate-right
                 rotate image right (+90 degrees)

         +Rtd  --rotate-top-down
                 rotate image top-down (180 degrees)


         +Lh   --flip-horizontally
                 flip image horizontally

         +Lv   --flip-vertically
                 flip image vertically

         +Lhv  --flip-both-axes
                 flip image horizontally and vertically


         +a    --recognize-aspect
                 recognize pixel aspect ratio when scaling (default)

         -a    --ignore-aspect
                 ignore pixel aspect ratio when scaling

         +i    --interpolate  [n]umber of algorithm: integer
                 use interpolation when scaling (1..4, default: 1)

         -i    --no-interpolation
                 no interpolation when scaling

         -S    --no-scaling
                 no scaling, ignore pixel aspect ratio (default)

         +Sxf  --scale-x-factor  [f]actor: float
                 scale x axis by factor, auto-compute y axis

         +Syf  --scale-y-factor  [f]actor: float
                 scale y axis by factor, auto-compute x axis

         +Sxv  --scale-x-size  [n]umber: integer
                 scale x axis to n pixels, auto-compute y axis

         +Syv  --scale-y-size  [n]umber: integer
                 scale y axis to n pixels, auto-compute x axis

       modality LUT transformation:

         -M    --no-modality
                 ignore stored modality LUT transformation

         +M    --use-modality
                 use modality LUT transformation (default)

       VOI LUT transformation:

         -W    --no-windowing
                 no VOI windowing (default)

         +Wi   --use-window  [n]umber: integer
                 use the n-th VOI window from image file

         +Wl   --use-voi-lut  [n]umber: integer
                 use the n-th VOI look up table from image file

         +Wm   --min-max-window
                 compute VOI window using min-max algorithm

         +Wn   --min-max-window-n
                 compute VOI window using min-max algorithm,
                 ignoring extreme values

         +Wr   --roi-min-max-window  [l]eft [t]op [w]idth [h]eight: integer
                 compute ROI window using min-max algorithm,
                 region of interest is specified by l,t,w,h

         +Wh   --histogram-window  [n]umber: integer
                 compute VOI window using Histogram algorithm,
                 ignoring n percent

         +Ww   --set-window  [c]enter [w]idth: float
                 compute VOI window using center c and width w

         +Wfl  --linear-function
                 set VOI LUT function to LINEAR

         +Wfs  --sigmoid-function
                 set VOI LUT function to SIGMOID

       presentation LUT transformation:

         +Pid  --identity-shape
                 set presentation LUT shape to IDENTITY

         +Piv  --inverse-shape
                 set presentation LUT shape to INVERSE

         +Pod  --lin-od-shape
                 set presentation LUT shape to LIN OD


         -O    --no-overlays
                 do not display overlays

         +O    --display-overlay  [n]umber: integer
                 display overlay n (0..16, 0=all, default: +O 0)

         +Omr  --ovl-replace
                 use overlay mode "Replace"
                 (default for Graphic overlays)

         +Omt  --ovl-threshold
                 use overlay mode "Threshold Replace"

         +Omc  --ovl-complement
                 use overlay mode "Complement"

         +Omv  --ovl-invert
                 use overlay mode "Invert Bitmap"

         +Omi  --ovl-roi
                 use overlay mode "Region of Interest"
                 (default for ROI overlays)

         +Osf  --set-foreground  [d]ensity: float
                 set overlay foreground density (0..1, default: 1)

         +Ost  --set-threshold  [d]ensity: float
                 set overlay threshold density (0..1, default: 0.5)

       display LUT transformation:

         +Dm   --monitor-file  [f]ilename: string
                 calibrate output according to monitor characteristics
                 defined in f

         +Dp   --printer-file  [f]ilename: string
                 calibrate output according to printer characteristics
                 defined in f

         +Da   --ambient-light  [a]mbient light: float
                 ambient light value (cd/m^2, default: file f)

         +Di   --illumination  [i]llumination: float
                 illumination value (cd/m^2, default: file f)

         +Dn   --min-density  [m]inimum optical density: float
                 Dmin value (default: off, only with +Dp)

         +Dx   --max-density  [m]aximum optical density: float
                 Dmax value (default: off, only with +Dp)

         +Dg   --gsd-function
                 use GSDF for calibration (default for +Dm/+Dp)

         +Dc   --cielab-function
                 use CIELAB function for calibration


         +Ma   --accept-acr-nema
                 accept ACR-NEMA images without photometric

         +Mp   --accept-palettes
                 accept incorrect palette attribute tags
                 (0028,111x) and (0028,121x)

         +Mc   --check-lut-depth
                 check 3rd value of the LUT descriptor, compare
                 with expected bit depth based on LUT data

         +Mm   --ignore-mlut-depth
                 ignore 3rd value of the modality LUT descriptor,
                 determine bits per table entry automatically

         +Mv   --ignore-vlut-depth
                 ignore 3rd value of the VOI LUT descriptor,
                 determine bits per table entry automatically

       TIFF format:

         +Tl   --compr-lzw
                 LZW compression (default)

         +Tr   --compr-rle
                 RLE compression

         +Tn   --compr-none

         +Pd   --predictor-default
                 no LZW predictor (default)

         +Pn   --predictor-none
                 LZW predictor 1 (no prediction)

         +Ph   --predictor-horz
                 LZW predictor 2 (horizontal differencing)

         +Rs   --rows-per-strip  [r]ows: integer (default: 0)
                 rows per strip, default 8K per strip

       PNG format:

         +il   --interlace
                 create interlaced file (default)

         -il   --nointerlace
                 create non-interlaced file

         +mf   --meta-file
                 create PNG file meta information (default)

         -mf   --meta-none
                 no PNG file meta information

       other transformations:

         +G    --grayscale
                 convert color image to grayscale (monochrome)

         +P    --change-polarity
                 change polarity (invert pixel output)

         +C    --clip-region  [l]eft [t]op [w]idth [h]eight: integer
                 clip image region (l, t, w, h)

   output options

         -im   --image-info
                 print image details (requires verbose mode)

         -o    --no-output
                 do not create any output (useful with -im)

       filename generation (only with --frame-range or --all-frames):

         +Fc   --use-frame-counter
                 use 0-based counter for filenames (default)

         +Fn   --use-frame-number
                 use absolute frame number for filenames

       image format:

         +op   --write-raw-pnm
                 write 8-bit binary PGM/PPM (default for files)

         +opb  --write-8-bit-pnm
                 write 8-bit ASCII PGM/PPM (default for stdout)

         +opw  --write-16-bit-pnm
                 write 16-bit ASCII PGM/PPM

         +opn  --write-n-bit-pnm  [n]umber: integer
                 write n-bit ASCII PGM/PPM (1..32)

         +ob   --write-bmp
                 write 8-bit (monochrome) or 24-bit (color) BMP

         +obp  --write-8-bit-bmp
                 write 8-bit palette BMP (monochrome only)

         +obt  --write-24-bit-bmp
                 write 24-bit truecolor BMP

         +obr  --write-32-bit-bmp
                 write 32-bit truecolor BMP

         +ot   --write-tiff
                 write 8-bit (monochrome) or 24-bit (color) TIFF

         +on   --write-png
                 write 8-bit (monochrome) or 24-bit (color) PNG

         +on2  --write-16-bit-png
                 write 16-bit (monochrome) or 48-bit (color) PNG


       The  following  preferred interpolation algorithms can be selected using the --interpolate

       • 1 = free scaling algorithm with interpolation from pbmplus toolkit
       • 2 = free scaling algorithm with interpolation from c't magazine
       • 3 = magnification algorithm with bilinear interpolation from Eduard Stanescu
       • 4 = magnification algorithm with bicubic interpolation from Eduard Stanescu
       The --write-tiff option is only available when DCMTK has been configured and compiled with
       support  for  the  external libtiff TIFF library. The availability of the TIFF compression
       options depends on the libtiff configuration.
       The --write-png option is only available when DCMTK has been configured and compiled  with
       support  for the external libpng PNG library. Option --interlace enables progressive image
       view while loading the PNG file. Only a few applications take care of the meta info (TEXT)
       in a PNG file.


       dcm2pnm 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. (*)
       BigEndianExplicitTransferSyntax                1.2.840.10008.1.2.2
       RLELosslessTransferSyntax                      1.2.840.10008.1.2.5
       (*) if compiled with zlib support enabled


       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  dcm2pnm  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.


       <datadir>/camera.lut - sample characteristics file of a camera
       <datadir>/monitor.lut - sample characteristics file of a monitor
       <datadir>/printer.lut - sample characteristics file of a printer
       <datadir>/scanner.lut - sample characteristics file of a scanner


       dcmj2pnm(1), img2dcm(1)


       Copyright (C) 1998-2022 by OFFIS e.V., Escherweg 2, 26121 Oldenburg, Germany.