[Digikam-users] Storing comments and tags outside the image?
pwaldo at waldoware.com
Wed Nov 22 16:36:21 GMT 2006
On Wednesday 22 November 2006 4:07 am, Gilles Caulier wrote:
> On Friday 17 November 2006 18:15, Paul Waldo wrote:
> > I consider my images as digital
> > negatives and don't want them touched once uploaded to the computer.
> Let's me explain an important point about metadata : image data (the
> picture that you can see in screen) are not meta-data and vis-versa.
> Both data are stored in separate sections in picture files. This is want
> mean than metadata can be changed without touch something in image data.
This is true conceptually, but very different from a practical perspective. I
understand that any modification to the data portion of the file *should not*
affect the image. I can think of at least two situations where this may not
- The metadata software has a bug that causes it to write the metadata in some
strange way. You now have weird stuff in the file, which may overwrite the
- There is a disk IO problem. Lets say that I am very low on disk space and
the number of characters in my brand new comment pushes the file size over
the limit, causing a disk-full error. The image may be in a strange state.
Digikam may handle situation 2 very well, but situation 1 seems out of its
control. I would love to be able to take advantage of writing meta data
directly to the file, but it scares me. I'd hate for my
undeniable-proof-of-Sasquatch photo to get corrupted because of a bug in
exiv2 (for example). That's why I wanted to make sure that the original
image *file* does not get touched.
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