Find the CRC (hash) of a gzip encoded NRRD file

Source: R/UNUImageProcessingFunctions.R

Find the CRC (hash) of a gzip encoded NRRD file

NrrdCrc(infile, UseGzip = FALSE, FastHeader = TRUE)

Arguments

infile

Input/output files
UseGzip

Whether to use the gzip command line tool to extract CRC (default FALSE, see details)
FastHeader

Parse only essential parts of NRRD header to save time.

Details

: Defaults to a quick method based on knowledge of gzip file format from: http://www.gzip.org/zlib/rfc-gzip.html and assumption that there is only one member in gzip data. Can also use gzip but this is much slower since have to copy unu data to temporary file.