[sane-devel] EXIF data in TIFF images
giuseppe at eppesuigoccas.homedns.org
Sat Sep 9 20:51:19 UTC 2006
m. allan noah wrote:
> what parts of exif cannot be extracted from existing sane options?
Probably the best answer is to look at all possibile tags that a scanner
could set: http://www.exiv2.org/tags.html
The list is from the exiv2 project, a free software that display and
modify EXIF data in JPEG and TIFF files.
The list is mainly for cameras and only a few tags will apply to
scanners, but SANE-2 should also handle cameras, isn't it?
Probably you may want to store informations that SANE will not handle,
i.e., my scanner uses 14bit per color channel, while sane handle only 1,
8 or 16. Or you may store data like "Whote point chromaticity".
Wikipedia even (http://en.wikipedia.org/wiki/EXIF) write that EXIF does
not contain any scanner specific tags.
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