2006.08.04 16:04 "Re: [Tiff] newbiequestion: [?] backup complete ifd > private ifd", by Karin Hoehne
thx a lot for your suggestion of checking the code of tiffdump.
in fact, i had something like this in mind - i'm pretty sure that this will help to get the information about the ifd itself i'm looking for.
Note that programs that change ifd[0] will be very likely to destroy or overwrite ifd[1]. I don't understand what it is you are trying to accomplish, but maybe you will want to store ifd[1] in a separate file.
the idea is to have a >single< tiff-file with a backup of the ifd, which is originally/usually used. >if< something is wrong (which i should know by comparing the values): overwrite the 'damaged' ifd with the values of the backup. there would nothing wrong about overwriting the backup ifd.
referring to:
> You can copy the IFD itself, but remember [...] hm... but how? i still couldn't figure out. [ right now i start feeling pretty stupid :) ]
thx again for your help. /karin