Up: Image Processing Tasks
Modify the blanking value of a GDF file. This operation has 2 purposes:
1 - modify the blanked data to a new blanking value, and modify the
header consistently. This means all the blanked data and only the
blanked data in the input file will be blanked in the output file.
2 - patch NaN values to replace them by the blanking value. This is use-
ful when importing external data, as NaN values not ignored by all
Note that this operation cannot be done through the HEADER program,
which only modifies the blanking value of the header but not the corre-
sponding data (e.g. blanked data could become unblanked by doing this).