Retrieves full tag value from IFDs (Image Field Directory) extracted by getIFD
.
getFullTag(IFD, which = 1, tag = "256")
an object of class `IFC_ifd_list` extracted by getIFD
.
scalar, integer (index) or the name of 'IFD' sub-element to extract 'tag' from. Default is 1 to extract 'tag' from the first member of 'IFD'.
scalar, integer (index) or the name of the IFD[[which]] of the desired 'tag'.
the full value of the corresponding IFD tag.
It may be usefull to extract all information contained in a specific 'tag' since getIFD
is designed to be run with argument trunc_bytes so as to only extract essential bytes to run faster and save memory.
Nonetheless, thanks to getFullTag
users will still be able to get full extraction of specific tag.