Runs the ITK AddImageFilter on two images, to add voxels together on a voxel by voxel basis.

This program uses ITK ImageFileReaders to load two images, and then uses ITK AddImageFilter to add them together on a voxel by voxel basis before writing them with ITK ImageFileWriter.

• Dimensions: 2,3.
• Pixel type: Scalars only of unsigned char, char, unsigned short, short, unsigned int, int, unsigned long, long, float and double.

Caveats

• File sizes not checked.
• Image headers not checked. By "voxel by voxel basis" we mean that the image geometry, origin, orientation is not checked.

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USAGE: 

   niftkAdd  [--returnparameterfile <std::string>]
             [--processinformationaddress <std::string>] [--xml] [--echo]
             [-o <std::string>] [-j <std::string>] [-i <std::string>] [--]
             [--version] [-h]


Where: 

   --returnparameterfile <std::string>
     Filename in which to write simple return parameters (int, float,
     int-vector, etc.) as opposed to bulk return parameters (image,
     geometry, transform, measurement, table).

   --processinformationaddress <std::string>
     Address of a structure to store process information (progress, abort,
     etc.). (default: 0)

   --xml
     Produce xml description of command line arguments (default: 0)

   --echo
     Echo the command line arguments (default: 0)

   -o <std::string>,  --outputImage <std::string>
     Output image (default: outputAdd.nii.gz)

   -j <std::string>,  --inputImage2 <std::string>
     Input image 2

   -i <std::string>,  --inputImage1 <std::string>
     Input image 1

   --,  --ignore_rest
     Ignores the rest of the labeled arguments following this flag.

   --version
     Displays version information and exits.

   -h,  --help
     Displays usage information and exits.


   Description: Adds two images of exactly the same size on a voxel by
   voxel basis.

   Author(s): Matt Clarkson, Marc Modat.