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Different pictures having the same EXIF got the same thumbnail
Status:
RESOLVED: INVALID
Product:
Tumbler
Component:
General

Comments

Description Radu-Cristian Fotescu 2009-10-03 22:09:12 CEST
I have 2 pictures, Imagine0017.jpg and Imagine0018.jpg, made with a Nokia phone.
I concatenated them and I saved the result as fietel_chic.jpg, with a software (PhotoFiltre under WINE) that asked me whether to preserve the EXIF info or not. I said yes 
==> fietel_chic.jpg has now the same EXIF info as Imagine0017.jpg (which is correct)
==> fietel_chic.jpg has now THE SAME THUMBNAIL AS Imagine0017.jpg (which is a bug)

Xubuntu 9.10 beta, Thunar 1.0.1
Comment 1 Radu-Cristian Fotescu 2009-10-03 22:10:15 CEST
Created attachment 2569 
First image
Comment 2 Radu-Cristian Fotescu 2009-10-03 22:11:05 CEST
Created attachment 2570 
Second image, inherits the thumbnail
Comment 3 Radu-Cristian Fotescu 2009-10-03 22:19:53 CEST
Created attachment 2571 
Spot the 2 identical thumbnails
Comment 4 Radu-Cristian Fotescu 2009-10-03 22:52:11 CEST
`killall Thunar ; rm -rf ~/.cache/Thunar/' DOES NOT fix the bug!
Comment 5 Radu-Cristian Fotescu 2009-10-03 23:02:25 CEST
Fix: save the file again, with GIMP, and without any EXIF info!
Comment 6 Lionel Le Folgoc 2011-10-21 15:15:59 CEST
AFAIK, it's because of the jpeg thumbnailer, which will use the thumbnail contained in the EXIF data when it's available (and since your two pictures have the same EXIF info, they'll have the same thumbnail).

This doesn't happen when the pixbuf thumbnailer is used (here it's fine because tumbler chose the pixbuf thumbnailer by default, but I'm not sure it will be the case on another system).
Comment 7 Jannis Pohlmann editbugs 2012-02-24 18:01:58 CET
This is not a bug in tumbler. If your EXIF data is out of date, then it is a bug in whatever application caused that. (It is a bit problematic that the pixbuf thumbnailer plugin and the jpeg thumbnailer plugin race over who gets to create the thumbnail though. But that's a different issue.)
Comment 8 Jannis Pohlmann editbugs 2012-02-24 18:02:40 CET
I correct myself: It is not a bug in tumbler, unless there is a simple way to check whether the EXIF data is still up to date by means of libjpeg. But I doubt that.

Bug #5820

Reported by:
Radu-Cristian Fotescu
Reported on: 2009-10-03
Last modified on: 2012-02-24

People

Assignee:
Jannis Pohlmann
CC List:
1 user

Version

Version:
unspecified

Attachments

First image (78.00 KB, image/jpeg)
2009-10-03 22:10 CEST , Radu-Cristian Fotescu
no flags
Second image, inherits the thumbnail (195.66 KB, image/jpeg)
2009-10-03 22:11 CEST , Radu-Cristian Fotescu
no flags
Spot the 2 identical thumbnails (267.77 KB, image/png)
2009-10-03 22:19 CEST , Radu-Cristian Fotescu
no flags

Additional information