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NAME

       dcstats - ACR/NEMA DICOM PS3 ... DICOM PS3 - DICOM image statistics

SYNOPSIS

       dcstats [ -v|verbose ] [ -filename ]

DESCRIPTION

       dcstats  reads the named dicom or acr-nema input file and describes the
       statistics of the image pixel data. The primary intent is to  determine
       if  the  pixel representation is unsigned or signed (regardless of what
       other attributes may specify).

       The description and verbose output go to standard error.

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

       -v|verbose
              Display  byte  offset  from  file  start  and  message start, in
              hexadecimal, and dump contents while reading and once read.

       -filename
              Show the name of the file supplied in the  arguments;  a  hyphen
              will be reported if no filename was supplied.

       -filename
              Show  the  name  of the file supplied in the arguments; a hyphen
              will be reported if no filename was supplied.

ENVIRONMENT


EXAMPLES


       % dcstats expmeta.dc3
       Signed minimum value = 0x0      (0 dec)
       Signed maximum value = 0x6e9    (1769 dec)
       Unsigned minimum value = 0x0    (0 dec)
       Unsigned maximum value = 0x6e9  (1769 dec)
       Signed range = 0x6e9    (1769 dec)
       Unsigned range = 0x6e9  (1769 dec)
       Signed mean = 0x158     (344 dec)       (19.446%)
       Unsigned mean = 0x158   (344 dec)       (19.446%)
       Bits Stored = 16
       Significant unsigned bits = 11

       % dcstats impnone.dc3
       Signed minimum value = 0xfa24   (64036 dec)
       Signed maximum value = 0x638    (1592 dec)
       Unsigned minimum value = 0x0    (0 dec)
       Unsigned maximum value = 0xffff (65535 dec)
       Signed range = 0xc14    (3092 dec)
       Unsigned range = 0xffff (65535 dec)
       Signed mean = 0xfec2    (65218 dec)     (38.2277%)
       Unsigned mean = 0x1cdd  (7389 dec)      (11.2749%)
       Bits Stored = 16
       Significant positive bits = 11
       Significant negative bits = 11
       Offset to make unsigned in hex is = 0x5dc
       Offset to make unsigned in dec is = 1500

FILES


SEE ALSO

       dchist(1), dcintro(1)

AUTHOR

       Copyright (C) 1993-2010. David A. Clunie DBA PixelMed  Publishing.  All
       rights reserved.

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