R/checksumXIF.R

In gitdemont/IFC: Tools for Imaging Flow Cytometry

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# This file is released under the GNU General Public License, Version 3, GPL-3 #
# Copyright (C) 2020 Yohann Demont                                             #
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# It is part of IFC package, please cite:                                      #
# -IFC: An R Package for Imaging Flow Cytometry                                #
# -YEAR: 2020                                                                  #
# -COPYRIGHT HOLDERS: Yohann Demont, Gautier Stoll, Guido Kroemer,             #
#                     Jean-Pierre Marolleau, Loïc Garçon,                      #
#                     INSERM, UPD, CHU Amiens                                  #
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#' @title RIF/CIF File Checksum 
#' @description 
#' This function returns RIF/CIF checksum.
#' Checksum is the sum of img IFDs (Image Field Directory) offsets of objects 0, 1, 2, 3 and 4.
#' @param fileName path to file.
#' @param ... other arguments to be passed.
#' @keywords internal
checksumXIF = function(fileName, ...) {
  # TODO ask AMNIS how checksum is computed
  return(cpp_checksum(enc2native(fileName)))
}