average_images - Average images

       CMTK  is  developed  with support from the NIAAA under Grant AA021697, National Consortium on Alcohol and
       Neurodevelopment in Adolescence (N-CANDA): Data Integration Component. From April 2009 through  September
       2011, CMTK development and maintenance was supported by the NIBIB under Grant EB008381.

CMTK 3.3.1p2                                       Feb 26 2025                                 average_images(1)

       Torsten Rohlfing, with contributions from Michael P. Hasak, Greg Jefferis, Calvin R.  Maurer,  Daniel  B.
       Russakoff, and Yaroslav Halchenko

       Report bugs at http://nitrc.org/projects/cmtk/

       This  tool  computes  pixelwiase average, variance, standard deviation, z-score, or entropy images from a
       list of user-provided intensity images.

http://www.fsf.org/licensing/licenses/gpl.html

       average_images - Average images

GlobalToolkitOptions(thesearesharedbyallCMTKtools)--help
            Write list of basic command line options to standard output.

       --help-all
            Write complete list of basic and advanced command line options to standard output.

       --wiki
            Write list of command line options to standard output in MediaWiki markup.

       --man
            Write man page source in 'nroff' markup to standard output.

       --version
            Write toolkit version to standard output.

       --echo
            Write the current command line to standard output.

       --verbose-level<integer>
            Set verbosity level.

       --verbose, -v
            Increment verbosity level by 1 (deprecated; supported for backward compatibility).

       --threads<integer>
            Set maximum number of parallel threads (for POSIX threads and OpenMP).

   MainOptions--mode
            Mode of averaging operation Supported values: "avg", "var", "stdev", "zscore", "entropy", where  the
            default is "avg", or use one of the following:

            --avg
                 Compute average (i.e., mean) image [Thisisthedefault]--var
                 Compute variance image

            --stdev
                 Compute standard deviation image

            --zscore
                 Compute z-score image

            --entropy
                 Compute pixel-by-pixel population entropy image

   DataPreprocessing--log, -l
            Apply log to input data

       --abs, -a
            Use absolute input values

       --normalize-mean-stdev, -n
            Normalize image intensities using means and standard deviations

       --set-padding-value<double>
            Define padding value in input images [Default:disabled]OutputOptions--outfile-name<string>, -o<string>
            Output file name [Default:average.nii]--type
            Scalar  data  type  of  output  image.   Supported  values:  "float", "double", where the default is
            "float", or use one of the following:

            --float
                 Single-precision float.  [Thisisthedefault]--double
                 Double-precision float.

       average_images [options] image0 ...