NAME

       dctopgm8 - ACR/NEMA DICOM PS3 ... DICOM PS3 - DICOM image to PNM file

SYNOPSIS

       dctopgm8  [  -v|verbose  ]  [  -quiet|silent  ]  -windowwidth  width ] -windowlevel|windowcenter center ]
                 -ignorewindow ] -voilut numberfromzero ] -ignorevoilut ] -invertedgray ] -signed|unsigned ]

DESCRIPTION

       dctopgm8 reads the named dicom or acr-nema input file, converts  it  to  an  8  bit  grayscale  image  by
       windowing or application of a VOI LUT and saves it as a PGM file.

       In  the  absence  of  overriding command line options, the default behavior is to apply the first VOI LUT
       found, else if none, the first pair of window values in the input file, else if none, the full  range  of
       the input pixel values.

       The input file must be unencapsulated.

OPTIONS

       The PGM output goes where it is specified or standard out.  The verbose output goes to standard error.

       The basic input switches are described in dcintro(1). Options specific to this program are:

       -quiet|silent
              Suppress the normal description of image parameters.

       -verbose
              Display  byte  offset  from  file start and message start, in hexadecimal, and dump contents while
              reading, once read, during replacement, and before writing.

       -windowwidth width
              The window width to use (also supresses use of any VOI LUT).

       -windowlevel|windowcenter center
              The window center to use (also supresses use of any VOI LUT).

       -ignorewindow
              Ignore window center and width values in the input file,  and  use  the  full  pixel  value  range
              instead (if no other command line options).

       -voilut numberfromzero
              Use the selected VOI LUT from the input file (indexed from 0 not 1).

       -ignorevoilut
              Ignore  any  VOI  LUTs  in the input file, and use the window values or the full pixel value range
              instead (if no other command line options).

       -invertedgray
              Invert the grayscale, overriding the PhotometricInterpretation in the input file.

       -signed|unsigned
              Override the sign specified in the PixelRepresentation in the input file.

ENVIRONMENT

EXAMPLES

       % dctopgm8 file.dcm file.pgm
       Read ...
            Rows = 2294
            Columns = 1914
            NumberOfFrames = 0
            PhotometricInterpretation = MONOCHROME2
            SamplesPerPixel = 1
            BitsAllocated = 16
            BitsStored = 12
            HighBit = 11
            PixelRepresentation = 0
            PlanarConfiguration = 0
            RescaleIntercept = 0
            RescaleSlope = 1
            WindowCenter = 2905
            WindowWidth = 900
            VOILUTs = 3
            PixelData Value Length = 0x85fe78
       Setting window values extracted from object because present not set on command line
       Using ...
            Rows = 2294
            Columns = 1914
            NumberOfFrames = 1
            PhotometricInterpretation = MONOCHROME2
            SamplesPerPixel = 1
            BitsAllocated = 16
            BitsStored = 12
            HighBit = 11
            PixelRepresentation = 0
            PlanarConfiguration = 0
            RescaleIntercept = 0
            RescaleSlope = 1
            WindowCenter =
            WindowWidth =
            VOILUTs = 0 of 3
            Rows*Columns*SamplesPerPixel*BitsAllocated/8 = 0x85fe78
       Writing ...
       Applying VOILUT 0

FILES

SEE ALSO

       dccp(1), pnmtodc(1), rawtodc(1), dctopnm(1), dctoraw(1), dcintro(1)

AUTHOR

       Copyright (c) 1993-2018, David A. Clunie DBA PixelMed Publishing. All rights reserved.

BUGS