DCMTK

It would also be nice to have the same character set options in dcm2json that are already provided by dcm2xml:

specific character set:
  +Cr   --charset-require     require declaration of extended charset (def.)
  +Ca   --charset-assume      [c]harset: string
                              assume charset c if no extended charset declared
  +Cc   --charset-check-all   check all data elements with string values
                              (default: only PN, LO, LT, SH, ST, UC and UT)