lyngby_read_header

 lyngby_read_header   - Reads header information of a volume file

        function [siz, vdim, datatype] = read_header(file)

        Input:  file       Filename

        Output: siz        Dimensions vector (number of voxels)
               vdim       Physical size of a voxel in cm's (header
                          entry * 0.10)
               datatype   String compatible with fread to read data,
                          e.g. 'uchar' 

       Reads the header of an ANALYZE or a VAPET volume file
        Can also handle '.Z' and '.gz' compression

        See also: lyngby_read_volume, lyngby_readanahdr,
                  lyngby_readvapethdr