2003.04.30 10:29 "How use SubIFD TIFF tag", by Julien Demaria


I would have some help about the SubIFD TIFF tag.

  1. To set the SubIFD TIFF tag I need the number of subifd and their offset... How can I know the subifds offsets ?
  2. I want to use the SubIFD tag to add some subsampled images to an existing IFD.

I wouldn't recopy existing data ; I want append subfid to the ifd of an existing TIFF image.

My idea is:

Do you think it's the good way to do that? (in my little tests it seams currently work...)

Many thanks in advance for your help,